PngImage Class

Summary: Manipulate Portable Network Graphics (PNG) raster images with our versatile API,
featuring support for compression levels and various color depths including
Grayscale, Indexed Color, TrueColor, and alpha channels. Seamlessly process XMP metadata,
enabling comprehensive image metadata management, while easily loading PNG images,
performing diverse manipulations, applying filters, and converting images to other file
formats for optimal versatility and customization.

Module: aspose.imaging.fileformats.png

Full Name: aspose.imaging.fileformats.png.PngImage

Inheritance: IObjectWithBounds, IRasterImageArgb32PixelLoader, IRasterImageRawDataLoader, IHasXmpData, IHasMetadata, RasterCachedImage

Constructors

Name	Description
PngImage(path)	Constructs a new instance of the PngImage class using the path parameter to specify the location of the image file to load. This constructor enables developers to conveniently create PNG images by loading them from a file, simplifying the process of working with PNG images in their applications.
PngImage(path, color_type)	Initializes a new instance of the PngImage class by specifying the path to the image file and the color type. This constructor allows for convenient creation of PNG images from files with different color types, providing flexibility in handling various image formats.
PngImage(png_options, width, height)	Initialize a new instance of the PngImage class, incorporating PNG options alongside width and height parameters. This constructor empowers developers to create PNG images with customizable settings and dimensions, offering flexibility in image generation for diverse use cases.
PngImage(raster_image)	Creates a new instance of the PngImage class by providing a raster image as a parameter. This constructor allows developers to directly initialize a PNG image object using an existing raster image, streamlining the process of working with PNG images in their applications.
PngImage(raster_image, color_type)	Creates a new instance of the PngImage class by specifying a raster image and a color type. This constructor enables developers to directly convert raster images into PNG format while specifying the desired color type, offering flexibility in color representation.
PngImage(stream)	Creates a new instance of the PngImage class by initializing it with a stream. This constructor allows developers to load PNG images directly from a stream, providing flexibility in image retrieval from different sources.
PngImage(width, height)	Initialize a new object of the PngImage class by providing the width and height parameters. This constructor simplifies the creation of PNG images by allowing developers to specify the dimensions directly, facilitating efficient management of PNG image data within their applications.
PngImage(width, height, color_type)	Instantiate a fresh instance of the PngImage class, specifying the desired width, height, and color type parameters. This constructor enables swift creation of PNG images with tailored dimensions and color configurations, facilitating streamlined image generation for various applications and workflows.

Properties

Name	Type	Access	Description
auto_adjust_palette	bool	r/w	Gets or sets a value indicating whether automatic adjust palette.
background_color	Color	r/w	Retrieves the background color of the image, if one is specified. This property is helpful for applications that need to identify and potentially manipulate the background color of an image.
bits_per_pixel	int	r	Retrieve the bits per pixel value for the image. This property provides crucial information regarding the color depth of the image, enabling developers to understand the level of detail and color accuracy present in the image data.
bounds	Rectangle	r	Gets the object bounds.
buffer_size_hint	int	r/w	Gets or sets the buffer size hint which is defined max allowed size for all internal buffers.
container	Image	r	Gets the Image container.
data_stream_container	StreamContainer	r	Gets the object’s data stream.
disposed	bool	r	Gets a value indicating whether this instance is disposed.
file_format	FileFormat	r	Retrieves the format of the file associated with the image instance. This property provides essential information regarding the file type, enabling efficient handling and processing based on the specific format requirements.
has_alpha	bool	r	Returns a boolean value indicating whether the image has an alpha channel, which determines its transparency. This property is useful for applications that need to handle transparency, allowing developers to determine whether additional processing is required to handle transparent areas in the image.
has_background_color	bool	r/w	Retrieves a boolean value indicating whether the image has a background color. This property is useful for applications needing to determine if an image includes a background color, which can be important for various processing tasks such as compositing, rendering, or exporting.
has_transparent_color	bool	r/w	Provides a boolean value indicating whether the image contains a transparent color. This property is crucial for applications that need to handle transparency, allowing developers to determine whether additional processing is required to handle transparent regions in the image.
height	int	r	Obtain the height of the image. This property returns the vertical dimension of the image, allowing developers to determine its size in pixels along the vertical axis.
horizontal_resolution	double	r/w	Retrieve or modify the horizontal resolution of the image. This property represents the number of pixels per inch along the horizontal axis of the image. Adjusting this resolution can affect the physical size of the image when printed or displayed.
image_opacity	float	r	Gets opacity of this image.
interlaced	bool	r	Retrieves a boolean value indicating whether the PngImage is interlaced, which determines if the image data is stored in a progressive manner for faster loading or transmission.
interrupt_monitor	InterruptMonitor	r/w	Gets or sets the interrupt monitor.
is_cached	bool	r	Gets a value indicating whether image data is cached currently.
is_interlaced	bool	r	Returns a boolean value indicating if the image instance is interlaced. This property is crucial for optimizing loading strategies and ensuring efficient performance during image processing or display tasks.
is_raw_data_available	bool	r	Gets a value indicating whether raw data loading is supported.
palette	IColorPalette	r/w	Gets or sets the color palette. The color palette is not used when pixels are represented directly.
premultiply_components	bool	r/w	Gets or sets a value indicating whether the image components must be premultiplied.
raw_custom_color_converter	IColorConverter	r/w	Gets or sets the custom color converter
raw_data_format	PixelDataFormat	r	Accesses the raw data format of the image. This property provides insight into how the image data is structured internally, which can be useful for advanced image processing tasks or format conversion.
raw_data_settings	RawDataSettings	r	Gets the current raw data settings. Note when using these settings the data loads without conversion.
raw_fallback_index	int	r/w	Gets or sets the fallback index to use when palette index is out of bounds
raw_indexed_color_converter	IIndexedColorConverter	r/w	Gets or sets the indexed color converter
raw_line_size	int	r	Gets the raw line size in bytes.
size	Size	r	Gets the object size.
transparent_color	Color	r/w	Retrieves the transparent color of the image, if it exists. This property is valuable for applications requiring precise handling of transparent areas within images, allowing developers to access and manipulate the specific transparent color used.
update_xmp_data	bool	r/w	Gets or sets a value indicating whether to update the XMP metadata.
use_palette	bool	r	Gets a value indicating whether the image palette is used.
use_raw_data	bool	r/w	Gets or sets a value indicating whether to use raw data loading when the raw data loading is available.
vertical_resolution	double	r/w	Provides access to the vertical resolution of the image. Developers can use this property to retrieve or modify the resolution setting, which indicates the number of pixels per inch (PPI) along the vertical axis of the image.
width	int	r	Allows retrieval of the width of the image, providing essential information about its dimensions. This property is frequently used by developers to determine the image’s width, enabling them to perform various operations based on its size
xmp_data	XmpPacketWrapper	r/w	Accesses or modifies the Extensible Metadata Platform (XMP) metadata associated with the image. This property facilitates the extraction, modification, or addition of metadata, enabling comprehensive management of image-related information.

Methods

Name	Description
adjust_brightness(brightness)	Adjust of a brightness for image.
adjust_contrast(contrast)	Image contrasting
adjust_gamma(gamma)	Gamma-correction of an image.
adjust_gamma(gamma_red, gamma_green, gamma_blue)	Gamma-correction of an image.
binarize_bradley(brightness_difference)	Binarization of an image using Bradley’s adaptive thresholding algorithm using the integral image thresholding
binarize_bradley(brightness_difference, window_size)	Binarization of an image using Bradley’s adaptive thresholding algorithm using the integral image thresholding
binarize_fixed(threshold)	Binarization of an image with predefined threshold
binarize_otsu()	Binarization of an image with Otsu thresholding
blend(origin, overlay, overlay_alpha)	Blends this image instance with the overlay image.
blend(origin, overlay, overlay_area, overlay_alpha)	Blends this image instance with the overlay image.
cache_data()	Caches the data and ensures no additional data loading will be performed from the underlying DataStreamSupporter.data_stream_container.
can_load(file_path)	Determines whether image can be loaded from the specified file path.
can_load(file_path, load_options)	Determines whether image can be loaded from the specified file path and optionally using the specified open options.
can_load(stream)	Determines whether image can be loaded from the specified stream.
can_load(stream, load_options)	Determines whether image can be loaded from the specified stream and optionally using the specified loadOptions.
can_load_stream(stream)	Determines whether image can be loaded from the specified stream.
can_load_stream_with_options(stream, load_options)	Determines whether image can be loaded from the specified stream and optionally using the specified loadOptions.
can_load_with_options(file_path, load_options)	Determines whether image can be loaded from the specified file path and optionally using the specified open options.
can_save(options)	Determines whether image can be saved to the specified file format represented by the passed save options.
create(files)	Creates the multipage image containing the specified files.
create(files, throw_exception_on_load_error)	Creates the multipage image containing the specified files.
create(image_options, width, height)	Creates a new image using the specified create options.
create(images)	Creates a new image using the specified images as pages
create(images, dispose_images)	Creates a new image the specified images as pages.
create(multipage_create_options)	Creates the specified multipage create options.
create_from_file_with_color_type(path, color_type)	Initializes a new instance of the PngImage class.
create_from_files(files)	Creates the multipage image containing the specified files as lazy loading pages.
create_from_files(files, throw_exception_on_load_error)	Creates the multipage image containing the specified files as lazy loading pages.
create_from_image(raster_image)	Initializes a new instance of the PngImage class.
create_from_image_with_color_type(raster_image, color_type)	Initializes a new instance of the PngImage class.
create_from_images(images)	Creates a new image using the specified images as pages
create_from_images(images, dispose_images)	Creates a new image the specified images as pages.
create_from_stream(stream)	Initializes a new instance of the PngImage class.
create_with_width_height(width, height)	Initializes a new instance of the PngImage class.
create_with_width_height_color_type(width, height, color_type)	Initializes a new instance of the PngImage class.
create_with_width_height_options(png_options, width, height)	Initializes a new instance of the PngImage class.
crop(left_shift, right_shift, top_shift, bottom_shift)	Crop image with shifts.
crop(rectangle)	Cropping the image.
dither(dithering_method, bits_count)	Performs dithering on the current image.
dither(dithering_method, bits_count, custom_palette)	Performs dithering on the current image.
filter(rectangle, options)	Filters the specified rectangle.
get_argb_32_pixel(x, y)	Gets an image 32-bit ARGB pixel.
get_default_argb_32_pixels(rectangle)	Gets the default 32-bit ARGB pixels array.
get_default_options(args)	Gets the default options.
get_default_pixels(rectangle, partial_pixel_loader)	Gets the default pixels array using partial pixel loader.
get_default_raw_data(rectangle, partial_raw_data_loader, raw_data_settings)	Gets the default raw data array using partial pixel loader.
get_default_raw_data(rectangle, raw_data_settings)	Gets the default raw data array.
get_file_format(file_path)	Gets the file format.
get_file_format(stream)	Gets the file format.
get_file_format_of_stream(stream)	Gets the file format.
get_fitting_rectangle(rectangle, pixels, width, height)	Gets rectangle which fits the current image.
get_fitting_rectangle(rectangle, width, height)	Gets rectangle which fits the current image.
get_modify_date(use_default)	Retrieves the timestamp indicating the most recent modification of the resource image. This method provides access to vital metadata, enabling applications to ascertain when the image was last altered, facilitating version tracking and content management.
get_original_options()	Gets the options based on the original file settings. This can be helpful to keep bit-depth and other parameters of the original image unchanged. For example, if we load a black-white PNG image with 1 bit per pixel and then save it using the DataStreamSupporter.save(file_path) method, the output PNG image with 8-bit per pixel will be produced. To avoid it and save PNG image with 1-bit per pixel, use this method to get corresponding saving options and pass them to the Image.save(file_path, options) method as the second parameter.
get_pixel(x, y)	Gets an image pixel.
get_proportional_height(width, height, new_width)	Gets a proportional height.
get_proportional_width(width, height, new_height)	Gets a proportional width.
get_serialized_stream(image_options, clipping_rectangle, page_number)	Converts to aps.
get_skew_angle()	Gets the skew angle. This method is applicable to scanned text documents, to determine the skew angle when scanning.
grayscale()	Transformation of an image to its grayscale representation
load(file_path)	Loads a new image from the specified file path or URL. If filePath is a file path the method just opens the file. If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.
load(file_path, load_options)	Loads a new image from the specified file path or URL. If filePath is a file path the method just opens the file. If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.
load(stream)	Loads a new image from the specified stream.
load(stream, load_options)	Loads a new image from the specified stream.
load_argb_32_pixels(rectangle)	Loads 32-bit ARGB pixels.
load_argb_64_pixels(rectangle)	Loads 64-bit ARGB pixels.
load_cmyk_32_pixels(rectangle)	Loads pixels in CMYK format.
load_cmyk_pixels(rectangle)	Loads pixels in CMYK format. This method is deprecated. Please use more effective the RasterImage.load_cmyk_32_pixels(rectangle) method.
load_partial_argb_32_pixels(rectangle, partial_pixel_loader)	Loads 32-bit ARGB pixels partially (by blocks).
load_partial_argb_64_pixels(rectangle, partial_pixel_loader)	Loads 64-bit ARGB pixels partially by packs.
load_partial_pixels(desired_rectangle, pixel_loader)	Loads pixels partially by packs.
load_pixels(rectangle)	Loads pixels.
load_raw_data(rectangle, dest_image_bounds, raw_data_settings, raw_data_loader)	Loads raw data.
load_raw_data(rectangle, raw_data_settings, raw_data_loader)	Loads raw data.
load_stream(stream)	Loads a new image from the specified stream.
load_stream_with_options(stream, load_options)	Loads a new image from the specified stream.
load_with_options(file_path, load_options)	Loads a new image from the specified file path or URL. If filePath is a file path the method just opens the file. If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.
normalize_angle()	Normalizes the angle. This method is applicable to scanned text documents to get rid of the skewed scan. This method uses RasterImage.get_skew_angle() and RasterImage.rotate(angle) methods.
normalize_angle(resize_proportionally, background_color)	Normalizes the angle. This method is applicable to scanned text documents to get rid of the skewed scan. This method uses RasterImage.get_skew_angle() and RasterImage.rotate(angle, resize_proportionally, background_color) methods.
read_argb_32_scan_line(scan_line_index)	Reads the whole scan line by the specified scan line index.
read_scan_line(scan_line_index)	Reads the whole scan line by the specified scan line index.
remove_metadata()	Removes this image instance metadata by setting this IHasXmpData.xmp_data value to None.
replace_argb(old_color_argb, old_color_diff, new_color_argb)	Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.
replace_color(old_color, old_color_diff, new_color)	Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.
replace_color(old_color_argb, old_color_diff, new_color_argb)	Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.
replace_non_transparent_colors(new_color)	Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges. Note: if you use it on images without transparency, all colors will be replaced with a single one.
replace_non_transparent_colors(new_color_argb)	Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges. Note: if you use it on images without transparency, all colors will be replaced with a single one.
resize(new_width, new_height)	Resizes the image. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.
resize(new_width, new_height, resize_type)	Resizes the image.
resize(new_width, new_height, settings)	Resizes the image.
resize_by_settings(new_width, new_height, settings)	Resizes the image.
resize_by_type(new_width, new_height, resize_type)	Resizes the image.
resize_height_proportionally(new_height)	Resizes the height proportionally. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.
resize_height_proportionally(new_height, resize_type)	Resizes the height proportionally.
resize_height_proportionally(new_height, settings)	Resizes the height proportionally.
resize_height_proportionally_settings(new_height, settings)	Resizes the height proportionally.
resize_width_proportionally(new_width)	Resizes the width proportionally. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.
resize_width_proportionally(new_width, resize_type)	Resizes the width proportionally.
resize_width_proportionally(new_width, settings)	Resizes the width proportionally.
resize_width_proportionally_settings(new_width, settings)	Resizes the width proportionally.
rotate(angle)	Rotate image around the center.
rotate(angle, resize_proportionally, background_color)	Rotate image around the center.
rotate_flip(rotate_flip_type)	Rotates, flips, or rotates and flips the image.
save()	Saves the image data to the underlying stream.
save(file_path)	Saves the image to the specified file location.
save(file_path, options)	Saves the object’s data to the specified file location in the specified file format according to save options.
save(file_path, options, bounds_rectangle)	Saves the object’s data to the specified file location in the specified file format according to save options.
save(file_path, over_write)	Saves the object’s data to the specified file location.
save(stream)	The save data.
save(stream, options_base)	Saves the image’s data to the specified stream in the specified file format according to save options.
save(stream, options_base, bounds_rectangle)	Saves the image’s data to the specified stream in the specified file format according to save options.
save_argb_32_pixels(rectangle, pixels)	Saves the 32-bit ARGB pixels.
save_cmyk_32_pixels(rectangle, pixels)	Saves the pixels.
save_cmyk_pixels(rectangle, pixels)	Saves the pixels. This method is deprecated. Please use more effective the RasterImage.save_cmyk_32_pixels(rectangle, pixels) method.
save_pixels(rectangle, pixels)	Saves pixels (format specific method).
save_raw_data(data, data_offset, rectangle, raw_data_settings)	Saves the raw data.
save_to_stream(stream)	Saves the object’s data to the specified stream.
save_to_stream_with_options(stream, options_base)	Saves the image’s data to the specified stream in the specified file format according to save options.
save_to_stream_with_options_rect(stream, options_base, bounds_rectangle)	Saves the image’s data to the specified stream in the specified file format according to save options.
save_with_options(file_path, options)	Saves the object’s data to the specified file location in the specified file format according to save options.
save_with_options_rect(file_path, options, bounds_rectangle)	Saves the object’s data to the specified file location in the specified file format according to save options.
set_argb_32_pixel(x, y, argb_32_color)	Sets an image 32-bit ARGB pixel for the specified position.
set_palette(palette, update_colors)	Sets the image palette.
set_pixel(x, y, color)	Sets an image pixel for the specified position.
set_resolution(dpi_x, dpi_y)	Sets the resolution for this RasterImage.
write_argb_32_scan_line(scan_line_index, argb_32_pixels)	Writes the whole scan line to the specified scan line index.
write_scan_line(scan_line_index, pixels)	Writes the whole scan line to the specified scan line index.

Constructor: PngImage(path)

 PngImage(path) 

Constructs a new instance of the PngImage class using the path
parameter to specify the location of the image file to load. This constructor
enables developers to conveniently create PNG images by loading them from a file,
simplifying the process of working with PNG images in their applications.

Parameters:

Parameter	Type	Description
path	string	The path to load an image.

See also:

Example # 1: This example shows how to load a PNG image from a file.

Constructor: PngImage(path, color_type)

 PngImage(path, color_type) 

Initializes a new instance of the PngImage class by specifying the
path to the image file and the color type. This constructor allows for convenient
creation of PNG images from files with different color types, providing
flexibility in handling various image formats.

Parameters:

Parameter	Type	Description
path	string	The path to load an image.
color_type	PngColorType	The color type.

See also:

Example # 1: This example shows how to load a PNG image from a file with the specified col…

Constructor: PngImage(png_options, width, height)

 PngImage(png_options, width, height) 

Initialize a new instance of the PngImage class, incorporating
PNG options alongside width and height parameters. This constructor empowers
developers to create PNG images with customizable settings and dimensions,
offering flexibility in image generation for diverse use cases.

Parameters:

Parameter	Type	Description
png_options	PngOptions	The png options.
width	int	The width.
height	int	The height.

Constructor: PngImage(raster_image)

 PngImage(raster_image) 

Creates a new instance of the PngImage class by providing a raster
image as a parameter. This constructor allows developers to directly initialize a
PNG image object using an existing raster image, streamlining the process of
working with PNG images in their applications.

Parameters:

Parameter	Type	Description
raster_image	RasterImage	The raster image.

Constructor: PngImage(raster_image, color_type)

 PngImage(raster_image, color_type) 

Creates a new instance of the PngImage class by specifying a
raster image and a color type. This constructor enables developers to directly
convert raster images into PNG format while specifying the desired color type,
offering flexibility in color representation.

Parameters:

Parameter	Type	Description
raster_image	RasterImage	The raster image.
color_type	PngColorType	The color type.

Constructor: PngImage(stream)

 PngImage(stream) 

Creates a new instance of the PngImage class by initializing it
with a stream. This constructor allows developers to load PNG images directly
from a stream, providing flexibility in image retrieval from different sources.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load an image.

See also:

Example # 1: This example shows how to load a PNG image from a file or a file stream.

Constructor: PngImage(width, height)

 PngImage(width, height) 

Initialize a new object of the PngImage class by providing the
width and height parameters. This constructor simplifies the creation of PNG
images by allowing developers to specify the dimensions directly, facilitating
efficient management of PNG image data within their applications.

Parameters:

Parameter	Type	Description
width	int	The width.
height	int	The height.

See also:

Example # 1: This example shows how to create a PNG image of the specified size, fill it w…

Constructor: PngImage(width, height, color_type)

 PngImage(width, height, color_type) 

Instantiate a fresh instance of the PngImage class, specifying
the desired width, height, and color type parameters. This constructor enables
swift creation of PNG images with tailored dimensions and color configurations,
facilitating streamlined image generation for various applications and workflows.

Parameters:

Parameter	Type	Description
width	int	The width.
height	int	The height.
color_type	PngColorType	The color type.

Method: adjust_brightness(brightness)

 adjust_brightness(brightness) 

Adjust of a brightness for image.

Parameters:

Parameter	Type	Description
brightness	int	Brightness value.

Method: adjust_contrast(contrast)

 adjust_contrast(contrast) 

Image contrasting

Parameters:

Parameter	Type	Description
contrast	float	Contrast value (in range [-100; 100])

Method: adjust_gamma(gamma)

 adjust_gamma(gamma) 

Gamma-correction of an image.

Parameters:

Parameter	Type	Description
gamma	float	Gamma for red, green and blue channels coefficient

Method: adjust_gamma(gamma_red, gamma_green, gamma_blue)

 adjust_gamma(gamma_red, gamma_green, gamma_blue) 

Gamma-correction of an image.

Parameters:

Parameter	Type	Description
gamma_red	float	Gamma for red channel coefficient
gamma_green	float	Gamma for green channel coefficient
gamma_blue	float	Gamma for blue channel coefficient

Method: binarize_bradley(brightness_difference)

 binarize_bradley(brightness_difference) 

Binarization of an image using Bradley’s adaptive thresholding algorithm using the integral image thresholding

Parameters:

Parameter	Type	Description
brightness_difference	double	The brightness difference between pixel and the average of an s x s window of pixels centered around this pixel.

Method: binarize_bradley(brightness_difference, window_size)

 binarize_bradley(brightness_difference, window_size) 

Binarization of an image using Bradley’s adaptive thresholding algorithm using the integral image thresholding

Parameters:

Parameter	Type	Description
brightness_difference	double	The brightness difference between pixel and the average of an s x s window of pixels centered around this pixel.
window_size	int	The size of s x s window of pixels centered around this pixel

Method: binarize_fixed(threshold)

 binarize_fixed(threshold) 

Binarization of an image with predefined threshold

Parameters:

Parameter	Type	Description
threshold	byte	Threshold value. If corresponding gray value of a pixel is greater than threshold, a value of 255 will be assigned to it, 0 otherwise.

Method: blend(origin, overlay, overlay_alpha)

 blend(origin, overlay, overlay_alpha) 

Blends this image instance with the overlay image.

Parameters:

Parameter	Type	Description
origin	Point	The background image blending origin.
overlay	RasterImage	The overlay image.
overlay_alpha	byte	The overlay alpha.

Method: blend(origin, overlay, overlay_area, overlay_alpha)

 blend(origin, overlay, overlay_area, overlay_alpha) 

Blends this image instance with the overlay image.

Parameters:

Parameter	Type	Description
origin	Point	The background image blending origin.
overlay	RasterImage	The overlay image.
overlay_area	Rectangle	The overlay area.
overlay_alpha	byte	The overlay alpha.

Method: can_load(file_path) [static]

 can_load(file_path) 

Determines whether image can be loaded from the specified file path.

Parameters:

Parameter	Type	Description
file_path	string	The file path.

Returns

Type	Description
bool	true if image can be loaded from the specified file; otherwise, false.

Method: can_load(file_path, load_options) [static]

 can_load(file_path, load_options) 

Determines whether image can be loaded from the specified file path and optionally using the specified open options.

Parameters:

Parameter	Type	Description
file_path	string	The file path.
load_options	LoadOptions	The load options.

Returns

Type	Description
bool	true if image can be loaded from the specified file; otherwise, false.

Method: can_load(stream) [static]

 can_load(stream) 

Determines whether image can be loaded from the specified stream.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load from.

Returns

Type	Description
bool	true if image can be loaded from the specified stream; otherwise, false.

Method: can_load(stream, load_options) [static]

 can_load(stream, load_options) 

Determines whether image can be loaded from the specified stream and optionally using the specified loadOptions.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load from.
load_options	LoadOptions	The load options.

Returns

Type	Description
bool	true if image can be loaded from the specified stream; otherwise, false.

Method: can_load_stream(stream) [static]

 can_load_stream(stream) 

Determines whether image can be loaded from the specified stream.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load from.

Returns

Type	Description
bool	true if image can be loaded from the specified stream; otherwise, false.

Method: can_load_stream_with_options(stream, load_options) [static]

 can_load_stream_with_options(stream, load_options) 

Determines whether image can be loaded from the specified stream and optionally using the specified loadOptions.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load from.
load_options	LoadOptions	The load options.

Returns

Type	Description
bool	true if image can be loaded from the specified stream; otherwise, false.

Method: can_load_with_options(file_path, load_options) [static]

 can_load_with_options(file_path, load_options) 

Determines whether image can be loaded from the specified file path and optionally using the specified open options.

Parameters:

Parameter	Type	Description
file_path	string	The file path.
load_options	LoadOptions	The load options.

Returns

Type	Description
bool	true if image can be loaded from the specified file; otherwise, false.

Method: can_save(options)

 can_save(options) 

Determines whether image can be saved to the specified file format represented by the passed save options.

Parameters:

Parameter	Type	Description
options	ImageOptionsBase	The save options to use.

Returns

Type	Description
bool	true if image can be saved to the specified file format represented by the passed save options; otherwise, false.

Method: create(files) [static]

 create(files) 

Creates the multipage image containing the specified files.

Parameters:

Parameter	Type	Description
files	string	The files.

Returns

Type	Description
Image	The multipage image

Method: create(files, throw_exception_on_load_error) [static]

 create(files, throw_exception_on_load_error) 

Creates the multipage image containing the specified files.

Parameters:

Parameter	Type	Description
files	string	The files.
throw_exception_on_load_error	bool	if set to true [throw exception on load error].

Returns

Type	Description
Image	The multipage image

Method: create(image_options, width, height) [static]

 create(image_options, width, height) 

Creates a new image using the specified create options.

Parameters:

Parameter	Type	Description
image_options	ImageOptionsBase	The image options.
width	int	The width.
height	int	The height.

Returns

Type	Description
Image	The newly created image.

Method: create(images) [static]

 create(images) 

Creates a new image using the specified images as pages

Parameters:

Parameter	Type	Description
images	Image[]	The images.

Returns

Type	Description
Image	The Image as IMultipageImage

Method: create(images, dispose_images) [static]

 create(images, dispose_images) 

Creates a new image the specified images as pages.

Parameters:

Parameter	Type	Description
images	Image[]	The images.
dispose_images	bool	if set to true [dispose images].

Returns

Type	Description
Image	The Image as IMultipageImage

Method: create(multipage_create_options) [static]

 create(multipage_create_options) 

Creates the specified multipage create options.

Parameters:

Parameter	Type	Description
multipage_create_options	MultipageCreateOptions	The multipage create options.

Returns

Type	Description
Image	The multipage image

Method: create_from_file_with_color_type(path, color_type) [static]

 create_from_file_with_color_type(path, color_type) 

Initializes a new instance of the PngImage class.

Parameters:

Parameter	Type	Description
path	string	The path to load an image.
color_type	PngColorType	The color type.

Returns

Type	Description
PngImage

Method: create_from_files(files) [static]

 create_from_files(files) 

Creates the multipage image containing the specified files as lazy loading pages.

Parameters:

Parameter	Type	Description
files	string	The files.

Returns

Type	Description
Image	The multipage image

Method: create_from_files(files, throw_exception_on_load_error) [static]

 create_from_files(files, throw_exception_on_load_error) 

Creates the multipage image containing the specified files as lazy loading pages.

Parameters:

Parameter	Type	Description
files	string	The files.
throw_exception_on_load_error	bool	if set to true throw exception on load error.

Returns

Type	Description
Image	The multipage image

Method: create_from_image(raster_image) [static]

 create_from_image(raster_image) 

Initializes a new instance of the PngImage class.

Parameters:

Parameter	Type	Description
raster_image	RasterImage	The raster image.

Returns

Type	Description
PngImage

Method: create_from_image_with_color_type(raster_image, color_type) [static]

 create_from_image_with_color_type(raster_image, color_type) 

Initializes a new instance of the PngImage class.

Parameters:

Parameter	Type	Description
raster_image	RasterImage	The raster image.
color_type	PngColorType	The color type.

Returns

Type	Description
PngImage

Method: create_from_images(images) [static]

 create_from_images(images) 

Creates a new image using the specified images as pages

Parameters:

Parameter	Type	Description
images	Image[]	The images.

Returns

Type	Description
Image	The Image as IMultipageImage

Method: create_from_images(images, dispose_images) [static]

 create_from_images(images, dispose_images) 

Creates a new image the specified images as pages.

Parameters:

Parameter	Type	Description
images	Image[]	The images.
dispose_images	bool	if set to true [dispose images].

Returns

Type	Description
Image	The Image as IMultipageImage

Method: create_from_stream(stream) [static]

 create_from_stream(stream) 

Initializes a new instance of the PngImage class.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load an image.

Returns

Type	Description
PngImage

Method: create_with_width_height(width, height) [static]

 create_with_width_height(width, height) 

Initializes a new instance of the PngImage class.

Parameters:

Parameter	Type	Description
width	int	The width.
height	int	The height.

Returns

Type	Description
PngImage

Method: create_with_width_height_color_type(width, height, color_type) [static]

 create_with_width_height_color_type(width, height, color_type) 

Initializes a new instance of the PngImage class.

Parameters:

Parameter	Type	Description
width	int	The width.
height	int	The height.
color_type	PngColorType	The color type.

Returns

Type	Description
PngImage

Method: create_with_width_height_options(png_options, width, height) [static]

 create_with_width_height_options(png_options, width, height) 

Initializes a new instance of the PngImage class.

Parameters:

Parameter	Type	Description
png_options	PngOptions	The png options.
width	int	The width.
height	int	The height.

Returns

Type	Description
PngImage

Method: crop(left_shift, right_shift, top_shift, bottom_shift)

 crop(left_shift, right_shift, top_shift, bottom_shift) 

Crop image with shifts.

Parameters:

Parameter	Type	Description
left_shift	int	The left shift.
right_shift	int	The right shift.
top_shift	int	The top shift.
bottom_shift	int	The bottom shift.

Method: crop(rectangle)

 crop(rectangle) 

Cropping the image.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle.

Method: dither(dithering_method, bits_count)

 dither(dithering_method, bits_count) 

Performs dithering on the current image.

Parameters:

Parameter	Type	Description
dithering_method	DitheringMethod	The dithering method.
bits_count	int	The final bits count for dithering.

Method: dither(dithering_method, bits_count, custom_palette)

 dither(dithering_method, bits_count, custom_palette) 

Performs dithering on the current image.

Parameters:

Parameter	Type	Description
dithering_method	DitheringMethod	The dithering method.
bits_count	int	The final bits count for dithering.
custom_palette	IColorPalette	The custom palette for dithering.

Method: filter(rectangle, options)

 filter(rectangle, options) 

Filters the specified rectangle.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle.
options	FilterOptionsBase	The options.

Method: get_argb_32_pixel(x, y)

 get_argb_32_pixel(x, y) 

Gets an image 32-bit ARGB pixel.

Parameters:

Parameter	Type	Description
x	int	The pixel x location.
y	int	The pixel y location.

Returns

Type	Description
int	The 32-bit ARGB pixel for the specified location.

Method: get_default_argb_32_pixels(rectangle)

 get_default_argb_32_pixels(rectangle) 

Gets the default 32-bit ARGB pixels array.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to get pixels for.

Returns

Type	Description
int	The default pixels array.

Method: get_default_options(args)

 get_default_options(args) 

Gets the default options.

Parameters:

Parameter	Type	Description
args	object	The arguments.

Returns

Type	Description
ImageOptionsBase	Default options

Method: get_default_pixels(rectangle, partial_pixel_loader)

 get_default_pixels(rectangle, partial_pixel_loader) 

Gets the default pixels array using partial pixel loader.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to get pixels for.
partial_pixel_loader	IPartialArgb32PixelLoader	The partial pixel loader.

Method: get_default_raw_data(rectangle, partial_raw_data_loader, raw_data_settings)

 get_default_raw_data(rectangle, partial_raw_data_loader, raw_data_settings) 

Gets the default raw data array using partial pixel loader.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to get pixels for.
partial_raw_data_loader	IPartialRawDataLoader	The partial raw data loader.
raw_data_settings	RawDataSettings	The raw data settings.

Method: get_default_raw_data(rectangle, raw_data_settings)

 get_default_raw_data(rectangle, raw_data_settings) 

Gets the default raw data array.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to get raw data for.
raw_data_settings	RawDataSettings	The raw data settings.

Returns

Type	Description
byte	The default raw data array.

Method: get_file_format(file_path) [static]

 get_file_format(file_path) 

Gets the file format.

Parameters:

Parameter	Type	Description
file_path	string	The file path.

Returns

Type	Description
FileFormat	The determined file format.

Method: get_file_format(stream) [static]

 get_file_format(stream) 

Gets the file format.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream.

Returns

Type	Description
FileFormat	The determined file format.

Method: get_file_format_of_stream(stream) [static]

 get_file_format_of_stream(stream) 

Gets the file format.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream.

Returns

Type	Description
FileFormat	The determined file format.

Method: get_fitting_rectangle(rectangle, pixels, width, height) [static]

 get_fitting_rectangle(rectangle, pixels, width, height) 

Gets rectangle which fits the current image.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to get fitting rectangle for.
pixels	int	The 32-bit ARGB pixels.
width	int	The object width.
height	int	The object height.

Returns

Type	Description
Rectangle	The fitting rectangle or exception if no fitting rectangle can be found.

Method: get_fitting_rectangle(rectangle, width, height) [static]

 get_fitting_rectangle(rectangle, width, height) 

Gets rectangle which fits the current image.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to get fitting rectangle for.
width	int	The object width.
height	int	The object height.

Returns

Type	Description
Rectangle	The fitting rectangle or exception if no fitting rectangle can be found.

Method: get_modify_date(use_default)

 get_modify_date(use_default) 

Retrieves the timestamp indicating the most recent modification of the resource
image. This method provides access to vital metadata, enabling applications to
ascertain when the image was last altered, facilitating version tracking and
content management.

Parameters:

Parameter	Type	Description
use_default	bool	if set to true uses the information from FileInfo as default value.

Returns

Type	Description
datetime	The date and time the resource image was last modified.

Method: get_original_options()

 get_original_options() 

Gets the options based on the original file settings.
This can be helpful to keep bit-depth and other parameters of the original image unchanged.
For example, if we load a black-white PNG image with 1 bit per pixel and then save it using the
DataStreamSupporter.save(file_path) method, the output PNG image with 8-bit per pixel will be produced.
To avoid it and save PNG image with 1-bit per pixel, use this method to get corresponding saving options and pass them
to the Image.save(file_path, options) method as the second parameter.

Returns

Type	Description
ImageOptionsBase	The options based on the original file settings.

Method: get_pixel(x, y)

 get_pixel(x, y) 

Gets an image pixel.

Parameters:

Parameter	Type	Description
x	int	The pixel x location.
y	int	The pixel y location.

Returns

Type	Description
Color	The pixel color for the specified location.

Method: get_proportional_height(width, height, new_width) [static]

 get_proportional_height(width, height, new_width) 

Gets a proportional height.

Parameters:

Parameter	Type	Description
width	int	The width.
height	int	The height.
new_width	int	The new width.

Returns

Type	Description
int	The proportional height.

Method: get_proportional_width(width, height, new_height) [static]

 get_proportional_width(width, height, new_height) 

Gets a proportional width.

Parameters:

Parameter	Type	Description
width	int	The width.
height	int	The height.
new_height	int	The new height.

Returns

Type	Description
int	The proportional width.

Method: get_serialized_stream(image_options, clipping_rectangle, page_number)

 get_serialized_stream(image_options, clipping_rectangle, page_number) 

Converts to aps.

Parameters:

Parameter	Type	Description
image_options	ImageOptionsBase	The image options.
clipping_rectangle	Rectangle	The clipping rectangle.
page_number	int[]	The page number.

Returns

Type	Description
_io.BufferedRandom	The serialized stream

Method: get_skew_angle()

 get_skew_angle() 

Gets the skew angle.
This method is applicable to scanned text documents, to determine the skew angle when scanning.

Returns

Type	Description
float	The skew angle, in degrees.

Method: load(file_path) [static]

 load(file_path) 

Loads a new image from the specified file path or URL.
If filePath is a file path the method just opens the file.
If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.

Parameters:

Parameter	Type	Description
file_path	string	The file path or URL to load image from.

Returns

Type	Description
Image	The loaded image.

Method: load(file_path, load_options) [static]

 load(file_path, load_options) 

Loads a new image from the specified file path or URL.
If filePath is a file path the method just opens the file.
If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.

Parameters:

Parameter	Type	Description
file_path	string	The file path or URL to load image from.
load_options	LoadOptions	The load options.

Returns

Type	Description
Image	The loaded image.

Method: load(stream) [static]

 load(stream) 

Loads a new image from the specified stream.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load image from.

Returns

Type	Description
Image	The loaded image.

Method: load(stream, load_options) [static]

 load(stream, load_options) 

Loads a new image from the specified stream.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load image from.
load_options	LoadOptions	The load options.

Returns

Type	Description
Image	The loaded image.

Method: load_argb_32_pixels(rectangle)

 load_argb_32_pixels(rectangle) 

Loads 32-bit ARGB pixels.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to load pixels from.

Returns

Type	Description
int	The loaded 32-bit ARGB pixels array.

Method: load_argb_64_pixels(rectangle)

 load_argb_64_pixels(rectangle) 

Loads 64-bit ARGB pixels.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to load pixels from.

Returns

Type	Description
long	The loaded 64-bit ARGB pixels array.

Method: load_cmyk_32_pixels(rectangle)

 load_cmyk_32_pixels(rectangle) 

Loads pixels in CMYK format.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to load pixels from.

Returns

Type	Description
int	The loaded CMYK pixels presentes as 32-bit inateger values.

Method: load_cmyk_pixels(rectangle)

 load_cmyk_pixels(rectangle) 

Loads pixels in CMYK format.
This method is deprecated. Please use more effective the RasterImage.load_cmyk_32_pixels(rectangle) method.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to load pixels from.

Returns

Type	Description
CmykColor[]	The loaded CMYK pixels array.

Method: load_partial_argb_32_pixels(rectangle, partial_pixel_loader)

 load_partial_argb_32_pixels(rectangle, partial_pixel_loader) 

Loads 32-bit ARGB pixels partially (by blocks).

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to load pixels from.
partial_pixel_loader	IPartialArgb32PixelLoader	The partial pixel loader.

Method: load_partial_argb_64_pixels(rectangle, partial_pixel_loader)

 load_partial_argb_64_pixels(rectangle, partial_pixel_loader) 

Loads 64-bit ARGB pixels partially by packs.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The desired rectangle.
partial_pixel_loader	IPartialArgb64PixelLoader	The 64-bit ARGB pixel loader.

Method: load_partial_pixels(desired_rectangle, pixel_loader)

 load_partial_pixels(desired_rectangle, pixel_loader) 

Loads pixels partially by packs.

Parameters:

Parameter	Type	Description
desired_rectangle	Rectangle	The desired rectangle.
pixel_loader	IPartialPixelLoader	The pixel loader.

Method: load_pixels(rectangle)

 load_pixels(rectangle) 

Loads pixels.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to load pixels from.

Returns

Type	Description
Color[]	The loaded pixels array.

Method: load_raw_data(rectangle, dest_image_bounds, raw_data_settings, raw_data_loader)

 load_raw_data(rectangle, dest_image_bounds, raw_data_settings, raw_data_loader) 

Loads raw data.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to load raw data from.
dest_image_bounds	Rectangle	The dest image bounds.
raw_data_settings	RawDataSettings	The raw data settings to use for loaded data. Note if data is not in the format specified then data conversion will be performed.
raw_data_loader	IPartialRawDataLoader	The raw data loader.

Method: load_raw_data(rectangle, raw_data_settings, raw_data_loader)

 load_raw_data(rectangle, raw_data_settings, raw_data_loader) 

Loads raw data.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to load raw data from.
raw_data_settings	RawDataSettings	The raw data settings to use for loaded data. Note if data is not in the format specified then data conversion will be performed.
raw_data_loader	IPartialRawDataLoader	The raw data loader.

Method: load_stream(stream) [static]

 load_stream(stream) 

Loads a new image from the specified stream.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load image from.

Returns

Type	Description
Image	The loaded image.

Method: load_stream_with_options(stream, load_options) [static]

 load_stream_with_options(stream, load_options) 

Loads a new image from the specified stream.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to load image from.
load_options	LoadOptions	The load options.

Returns

Type	Description
Image	The loaded image.

Method: load_with_options(file_path, load_options) [static]

 load_with_options(file_path, load_options) 

Loads a new image from the specified file path or URL.
If filePath is a file path the method just opens the file.
If filePath is an URL, the method downloads the file, stores it as a temporary one, and opens it.

Parameters:

Parameter	Type	Description
file_path	string	The file path or URL to load image from.
load_options	LoadOptions	The load options.

Returns

Type	Description
Image	The loaded image.

Method: normalize_angle(resize_proportionally, background_color)

 normalize_angle(resize_proportionally, background_color) 

Normalizes the angle.
This method is applicable to scanned text documents to get rid of the skewed scan.
This method uses RasterImage.get_skew_angle() and RasterImage.rotate(angle, resize_proportionally, background_color) methods.

Parameters:

Parameter	Type	Description
resize_proportionally	bool	if set to true you will have your image size changed according to rotated rectangle (corner points) projections in other case that leaves dimensions untouched and only internal image contents are rotated.
background_color	Color	Color of the background.

Method: read_argb_32_scan_line(scan_line_index)

 read_argb_32_scan_line(scan_line_index) 

Reads the whole scan line by the specified scan line index.

Parameters:

Parameter	Type	Description
scan_line_index	int	Zero based index of the scan line.

Returns

Type	Description
int	The scan line 32-bit ARGB color values array.

Method: read_scan_line(scan_line_index)

 read_scan_line(scan_line_index) 

Reads the whole scan line by the specified scan line index.

Parameters:

Parameter	Type	Description
scan_line_index	int	Zero based index of the scan line.

Returns

Type	Description
Color[]	The scan line pixel color values array.

Method: replace_argb(old_color_argb, old_color_diff, new_color_argb)

 replace_argb(old_color_argb, old_color_diff, new_color_argb) 

Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.

Parameters:

Parameter	Type	Description
old_color_argb	int	Old color ARGB value to be replaced.
old_color_diff	byte	Allowed difference in old color to be able to widen replaced color tone.
new_color_argb	int	New color ARGB value to replace old color with.

Method: replace_color(old_color, old_color_diff, new_color)

 replace_color(old_color, old_color_diff, new_color) 

Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.

Parameters:

Parameter	Type	Description
old_color	Color	Old color to be replaced.
old_color_diff	byte	Allowed difference in old color to be able to widen replaced color tone.
new_color	Color	New color to replace old color with.

Method: replace_color(old_color_argb, old_color_diff, new_color_argb)

 replace_color(old_color_argb, old_color_diff, new_color_argb) 

Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.

Parameters:

Parameter	Type	Description
old_color_argb	int	Old color ARGB value to be replaced.
old_color_diff	byte	Allowed difference in old color to be able to widen replaced color tone.
new_color_argb	int	New color ARGB value to replace old color with.

Method: replace_non_transparent_colors(new_color)

 replace_non_transparent_colors(new_color) 

Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges.
Note: if you use it on images without transparency, all colors will be replaced with a single one.

Parameters:

Parameter	Type	Description
new_color	Color	New color to replace non transparent colors with.

Method: replace_non_transparent_colors(new_color_argb)

 replace_non_transparent_colors(new_color_argb) 

Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges.
Note: if you use it on images without transparency, all colors will be replaced with a single one.

Parameters:

Parameter	Type	Description
new_color_argb	int	New color ARGB value to replace non transparent colors with.

Method: resize(new_width, new_height)

 resize(new_width, new_height) 

Resizes the image. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.

Parameters:

Parameter	Type	Description
new_width	int	The new width.
new_height	int	The new height.

Method: resize(new_width, new_height, resize_type)

 resize(new_width, new_height, resize_type) 

Resizes the image.

Parameters:

Parameter	Type	Description
new_width	int	The new width.
new_height	int	The new height.
resize_type	ResizeType	The resize type.

Method: resize(new_width, new_height, settings)

 resize(new_width, new_height, settings) 

Resizes the image.

Parameters:

Parameter	Type	Description
new_width	int	The new width.
new_height	int	The new height.
settings	ImageResizeSettings	The resize settings.

Method: resize_by_settings(new_width, new_height, settings)

 resize_by_settings(new_width, new_height, settings) 

Resizes the image.

Parameters:

Parameter	Type	Description
new_width	int	The new width.
new_height	int	The new height.
settings	ImageResizeSettings	The resize settings.

Method: resize_by_type(new_width, new_height, resize_type)

 resize_by_type(new_width, new_height, resize_type) 

Resizes the image.

Parameters:

Parameter	Type	Description
new_width	int	The new width.
new_height	int	The new height.
resize_type	ResizeType	The resize type.

Method: resize_height_proportionally(new_height)

 resize_height_proportionally(new_height) 

Resizes the height proportionally. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.

Parameters:

Parameter	Type	Description
new_height	int	The new height.

Method: resize_height_proportionally(new_height, resize_type)

 resize_height_proportionally(new_height, resize_type) 

Resizes the height proportionally.

Parameters:

Parameter	Type	Description
new_height	int	The new height.
resize_type	ResizeType	Type of the resize.

Method: resize_height_proportionally(new_height, settings)

 resize_height_proportionally(new_height, settings) 

Resizes the height proportionally.

Parameters:

Parameter	Type	Description
new_height	int	The new height.
settings	ImageResizeSettings	The image resize settings.

Method: resize_height_proportionally_settings(new_height, settings)

 resize_height_proportionally_settings(new_height, settings) 

Resizes the height proportionally.

Parameters:

Parameter	Type	Description
new_height	int	The new height.
settings	ImageResizeSettings	The image resize settings.

Method: resize_width_proportionally(new_width)

 resize_width_proportionally(new_width) 

Resizes the width proportionally. The default ResizeType.NEAREST_NEIGHBOUR_RESAMPLE is used.

Parameters:

Parameter	Type	Description
new_width	int	The new width.

Method: resize_width_proportionally(new_width, resize_type)

 resize_width_proportionally(new_width, resize_type) 

Resizes the width proportionally.

Parameters:

Parameter	Type	Description
new_width	int	The new width.
resize_type	ResizeType	Type of the resize.

Method: resize_width_proportionally(new_width, settings)

 resize_width_proportionally(new_width, settings) 

Resizes the width proportionally.

Parameters:

Parameter	Type	Description
new_width	int	The new width.
settings	ImageResizeSettings	The image resize settings.

Method: resize_width_proportionally_settings(new_width, settings)

 resize_width_proportionally_settings(new_width, settings) 

Resizes the width proportionally.

Parameters:

Parameter	Type	Description
new_width	int	The new width.
settings	ImageResizeSettings	The image resize settings.

Method: rotate(angle)

 rotate(angle) 

Rotate image around the center.

Parameters:

Parameter	Type	Description
angle	float	The rotate angle in degrees. Positive values will rotate clockwise.

Method: rotate(angle, resize_proportionally, background_color)

 rotate(angle, resize_proportionally, background_color) 

Rotate image around the center.

Parameters:

Parameter	Type	Description
angle	float	The rotate angle in degrees. Positive values will rotate clockwise.
resize_proportionally	bool	if set to true you will have your image size changed according to rotated rectangle (corner points) projections in other case that leaves dimensions untouched and only internal image contents are rotated.
background_color	Color	Color of the background.

Method: rotate_flip(rotate_flip_type)

 rotate_flip(rotate_flip_type) 

Rotates, flips, or rotates and flips the image.

Parameters:

Parameter	Type	Description
rotate_flip_type	RotateFlipType	The rotate flip type.

Method: save(file_path)

 save(file_path) 

Saves the image to the specified file location.

Parameters:

Parameter	Type	Description
file_path	string	The file path to save the image to.

Method: save(file_path, options)

 save(file_path, options) 

Saves the object’s data to the specified file location in the specified file format according to save options.

Parameters:

Parameter	Type	Description
file_path	string	The file path.
options	ImageOptionsBase	The options.

Method: save(file_path, options, bounds_rectangle)

 save(file_path, options, bounds_rectangle) 

Saves the object’s data to the specified file location in the specified file format according to save options.

Parameters:

Parameter	Type	Description
file_path	string	The file path.
options	ImageOptionsBase	The options.
bounds_rectangle	Rectangle	The destination image bounds rectangle. Set the empty rectangle for use sourse bounds.

Method: save(file_path, over_write)

 save(file_path, over_write) 

Saves the object’s data to the specified file location.

Parameters:

Parameter	Type	Description
file_path	string	The file path to save the object’s data to.
over_write	bool	if set to true over write the file contents, otherwise append will occur.

Method: save(stream)

 save(stream) 

The save data.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream.

Method: save(stream, options_base)

 save(stream, options_base) 

Saves the image’s data to the specified stream in the specified file format according to save options.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to save the image’s data to.
options_base	ImageOptionsBase	The save options.

Method: save(stream, options_base, bounds_rectangle)

 save(stream, options_base, bounds_rectangle) 

Saves the image’s data to the specified stream in the specified file format according to save options.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to save the image’s data to.
options_base	ImageOptionsBase	The save options.
bounds_rectangle	Rectangle	The destination image bounds rectangle. Set the empty rectangle for use source bounds.

Method: save_argb_32_pixels(rectangle, pixels)

 save_argb_32_pixels(rectangle, pixels) 

Saves the 32-bit ARGB pixels.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to save pixels to.
pixels	int	The 32-bit ARGB pixels array.

Method: save_cmyk_32_pixels(rectangle, pixels)

 save_cmyk_32_pixels(rectangle, pixels) 

Saves the pixels.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to save pixels to.
pixels	int	The CMYK pixels presented as the 32-bit integer values.

Method: save_cmyk_pixels(rectangle, pixels)

 save_cmyk_pixels(rectangle, pixels) 

Saves the pixels.
This method is deprecated. Please use more effective the RasterImage.save_cmyk_32_pixels(rectangle, pixels) method.

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to save pixels to.
pixels	CmykColor[]	The CMYK pixels array.

Method: save_pixels(rectangle, pixels)

 save_pixels(rectangle, pixels) 

Saves pixels (format specific method).

Parameters:

Parameter	Type	Description
rectangle	Rectangle	The rectangle to save pixels to.
pixels	Color[]	The 32-bit ARGB pixels array.

Method: save_raw_data(data, data_offset, rectangle, raw_data_settings)

 save_raw_data(data, data_offset, rectangle, raw_data_settings) 

Saves the raw data.

Parameters:

Parameter	Type	Description
data	byte	The raw data.
data_offset	int	The starting raw data offset.
rectangle	Rectangle	The raw data rectangle.
raw_data_settings	RawDataSettings	The raw data settings the data is in.

Method: save_to_stream(stream)

 save_to_stream(stream) 

Saves the object’s data to the specified stream.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to save the object’s data to.

Method: save_to_stream_with_options(stream, options_base)

 save_to_stream_with_options(stream, options_base) 

Saves the image’s data to the specified stream in the specified file format according to save options.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to save the image’s data to.
options_base	ImageOptionsBase	The save options.

Method: save_to_stream_with_options_rect(stream, options_base, bounds_rectangle)

 save_to_stream_with_options_rect(stream, options_base, bounds_rectangle) 

Saves the image’s data to the specified stream in the specified file format according to save options.

Parameters:

Parameter	Type	Description
stream	_io.BufferedRandom	The stream to save the image’s data to.
options_base	ImageOptionsBase	The save options.
bounds_rectangle	Rectangle	The destination image bounds rectangle. Set the empty rectangle for use source bounds.

Method: save_with_options(file_path, options)

 save_with_options(file_path, options) 

Saves the object’s data to the specified file location in the specified file format according to save options.

Parameters:

Parameter	Type	Description
file_path	string	The file path.
options	ImageOptionsBase	The options.

Method: save_with_options_rect(file_path, options, bounds_rectangle)

 save_with_options_rect(file_path, options, bounds_rectangle) 

Saves the object’s data to the specified file location in the specified file format according to save options.

Parameters:

Parameter	Type	Description
file_path	string	The file path.
options	ImageOptionsBase	The options.
bounds_rectangle	Rectangle	The destination image bounds rectangle. Set the empty rectangle for use sourse bounds.

Method: set_argb_32_pixel(x, y, argb_32_color)

 set_argb_32_pixel(x, y, argb_32_color) 

Sets an image 32-bit ARGB pixel for the specified position.

Parameters:

Parameter	Type	Description
x	int	The pixel x location.
y	int	The pixel y location.
argb_32_color	int	The 32-bit ARGB pixel for the specified position.

Method: set_palette(palette, update_colors)

 set_palette(palette, update_colors) 

Sets the image palette.

Parameters:

Parameter	Type	Description
palette	IColorPalette	The palette to set.
update_colors	bool	if set to true colors will be updated according to the new palette; otherwise color indexes remain unchanged. Note that unchanged indexes may crash the image on loading if some indexes have no corresponding palette entries.

Method: set_pixel(x, y, color)

 set_pixel(x, y, color) 

Sets an image pixel for the specified position.

Parameters:

Parameter	Type	Description
x	int	The pixel x location.
y	int	The pixel y location.
color	Color	The pixel color for the specified position.

Method: set_resolution(dpi_x, dpi_y)

 set_resolution(dpi_x, dpi_y) 

Sets the resolution for this RasterImage.

Parameters:

Parameter	Type	Description
dpi_x	double	The horizontal resolution, in dots per inch, of the RasterImage.
dpi_y	double	The vertical resolution, in dots per inch, of the RasterImage.

Method: write_argb_32_scan_line(scan_line_index, argb_32_pixels)

 write_argb_32_scan_line(scan_line_index, argb_32_pixels) 

Writes the whole scan line to the specified scan line index.

Parameters:

Parameter	Type	Description
scan_line_index	int	Zero based index of the scan line.
argb_32_pixels	int	The 32-bit ARGB colors array to write.

Method: write_scan_line(scan_line_index, pixels)

 write_scan_line(scan_line_index, pixels) 

Writes the whole scan line to the specified scan line index.

Parameters:

Parameter	Type	Description
scan_line_index	int	Zero based index of the scan line.
pixels	Color[]	The pixel colors array to write.

Examples

This example shows how to load a PNG image from a file.

from aspose.pycore import as_of
from aspose.imaging import Image
from aspose.imaging.fileformats.png import PngImage

# Load a PNG image from a file.
with as_of(Image.load("sample.png"), PngImage) as pngImage:
	# Transform the image to grayscale representation
	pngImage.grayscale()
	# Save to a file.
	pngImage.save("sample.grayscale.png")

This example shows how to load a PNG image from a file with the specified color type.

import aspose.pycore as aspycore
from aspose.imaging.fileformats.png import PngImage, PngColorType
from os.path import join

dir_ = "c:\\temp"
# Load a PNG image from a file.
# Note that the colorful image will be converted to grayscale automatically.
with PngImage(join(dir_, "sample.png"), PngColorType.GRAYSCALE) as png_image:
	# Save to a file.
	png_image.save(join(dir_, "sample.grayscale.png"))

This example shows how to load a PNG image from a file or a file stream.

import aspose.pycore as aspycore
from aspose.imaging import Image
from aspose.imaging.fileformats.png import PngImage
from os.path import join


dir_: str = "c:\\temp"
# Load a PNG image from a file stream.
with open(join(dir_, "sample.png"), "rb") as stream:
	with PngImage(stream) as png_image:
		# Transform the image to grayscale representation
		png_image.grayscale()
		# Save to a file.
		png_image.save(join(dir_, "sample.grayscale.png"))

This example shows how to create a PNG image of the specified size, fill it with a solid color and save it to a file.

import aspose.pycore as aspycore
from aspose.imaging import Graphics, Color
from aspose.imaging.brushes import SolidBrush
from aspose.imaging.fileformats.png import PngImage
from os.path import join


dir_ = "c:\\temp"
# Create a PNG image of 100x100 px.
with PngImage(100, 100) as png_image:
	# Do some image processing, e.g. fill the entire image in red.
	graphics = Graphics(png_image)
	brush = SolidBrush(Color.red)
	graphics.fill_rectangle(brush, png_image.bounds)
	# Save to a file.
	png_image.save(join(dir_, "output.png"))

The example shows how to remove any object from the image using Graphics Path with Content Aware fill algorithm.

from aspose.imaging import Image, Figure, GraphicsPath, RectangleF
from aspose.imaging.shapes import EllipseShape
from aspose.imaging.watermark import WatermarkRemover
from aspose.imaging.watermark.options import ContentAwareFillWatermarkOptions
from aspose.imaging.fileformats.png import PngImage
import aspose.pycore import as_of

image_file_path = "ball.png"; 
with Image.load(image_file_path) as image:
	pngImage = as_of(image, PngImage)
	mask = GraphicsPath()
	firstFigure = Figure()
	firstFigure.add_shape(EllipseShape(RectangleF(350, 170, 570 - 350, 400 - 170)))
	mask.add_figure(firstFigure)

	options = ContentAwareFillWatermarkOptions(mask)
	options.max_painting_attempts = 4
	with WatermarkRemover.paint_over(pngImage, options) as result:
		result.save(outputPath)

The example shows how to remove any object from the image using Graphics Path with Telea algorithm.

from aspose.imaging import Image, Figure, GraphicsPath, RectangleF
from aspose.imaging.shapes import EllipseShape
from aspose.imaging.watermark import WatermarkRemover
from aspose.imaging.watermark.options import TeleaWatermarkOptions
from aspose.imaging.fileformats.png import PngImage
import aspose.pycore import as_of

image_file_path = "ball.png"; 
with Image.load(image_file_path) as image:
	pngImage = as_of(image, PngImage)
	mask = GraphicsPath()
	firstFigure = Figure()
	firstFigure.add_shape(EllipseShape(RectangleF(350, 170, 570 - 350, 400 - 170)))
	mask.add_figure(firstFigure);
	options = TeleaWatermarkOptions(mask)
	with WatermarkRemover.paint_over(pngImage, options) as result:
		result.save(outputPath)