Adjust Gamma of an Image with Aspose.PSD for Java

Introduction

In the realm of image processing, adjusting the gamma of an image is a crucial step to enhance its visual appeal. Aspose.PSD for Java offers a powerful solution for Java developers to effortlessly manipulate image gamma. In this tutorial, we’ll explore how to adjust gamma using Aspose.PSD, breaking down each step to ensure a seamless implementation.

Prerequisites

Before diving into the tutorial, make sure you have the following prerequisites set up:

1. Java Development Environment: Ensure you have a Java development environment installed on your system.
2. Aspose.PSD Library: Download and integrate the Aspose.PSD library into your Java project. You can find the necessary resources in the documentation.
3. Sample Image: Prepare a sample PSD image that you’ll use to apply the gamma adjustment.

Import Packages

To kick off the process, import the required packages in your Java project. This sets the stage for utilizing Aspose.PSD functionalities seamlessly.

import com.aspose.psd.Image;
import com.aspose.psd.RasterImage;

import com.aspose.psd.fileformats.tiff.enums.TiffExpectedFormat;
import com.aspose.psd.fileformats.tiff.enums.TiffPhotometrics;
import com.aspose.psd.imageoptions.TiffOptions;

Step 1: Load the Image

Start by loading the sample PSD image into an instance of the RasterImage class. This is the foundation for subsequent gamma adjustments.

String dataDir = "Your Document Directory";
String sourceFile = dataDir + "sample.psd";

// Load an existing image into an instance of RasterImage class
Image image = Image.load(sourceFile);

// Cast object of Image to RasterImage
RasterImage rasterImage = (RasterImage)image;

// Check if RasterImage is cached for better performance
if (!rasterImage.isCached()) {
    rasterImage.cacheData();
}

Step 2: Adjust Gamma

Now, adjust the gamma of the loaded image using the adjustGamma method. Fine-tune the gamma values according to your requirements.

// Adjust the gamma
rasterImage.adjustGamma(2.2f, 2.2f, 2.2f);

Step 3: Create TiffOptions

Create an instance of TiffOptions for the resultant image. Set various properties, such as bits per sample and photometric options, to tailor the output to your specifications.

// Create an instance of TiffOptions for the resultant image
TiffOptions tiffOptions = new TiffOptions(TiffExpectedFormat.Default);
int[] ushort = { 8, 8, 8 };
tiffOptions.setBitsPerSample(ushort);
tiffOptions.setPhotometric(TiffPhotometrics.Rgb);

Step 4: Save the Resultant Image

Save the manipulated image to TIFF format using the previously defined TiffOptions.

// Save the resultant image to TIFF format
String destName = dataDir + "AdjustGamma_out.tiff";
rasterImage.save(destName, tiffOptions);

Conclusion

Congratulations! You’ve successfully adjusted the gamma of an image using Aspose.PSD for Java. This process empowers developers to enhance image quality effortlessly, contributing to a visually appealing user experience.

FAQ’s

Q1: Where can I find the Aspose.PSD documentation?

A1: You can access the documentation at https://reference.aspose.com/psd/java/.

Q2: How do I download Aspose.PSD for Java?

A2: Download the library from https://releases.aspose.com/psd/java/.

Q3: Where can I purchase Aspose.PSD?

A3: Visit https://purchase.aspose.com/buy to purchase Aspose.PSD.

Q4: Is there a free trial available?

A4: Yes, you can explore a free trial at https://releases.aspose.com/.

Q5: Where can I seek support for Aspose.PSD?

A5: For support, visit the Aspose.PSD forum at https://forum.aspose.com/c/psd/34.