Class CmykCorrection

CmykCorrection class

Colors correction in selective color adjustment layer.

public class CmykCorrection

Constructors

NameDescription
CmykCorrection()The default constructor.

Properties

NameDescription
Black { get; set; }Gets or sets black color correction.
Cyan { get; set; }Gets or sets cyan color correction.
Magenta { get; set; }Gets or sets magenta color correction.
Yellow { get; set; }Gets or sets yellow color correction.

Examples

The following code demonstrates the support of SelectiveColorLayer adjustment layer.

[C#]

string sourceFileWithSelectiveColorLayer = "houses_selectiveColor_source.psd";
string outputPsdWithSelectiveColorLayer = "houses_selectiveColor_output.psd";
string outputPngWithSelectiveColorLayer = "houses_selectiveColor_output.png";

string sourceFileWithoutSelectiveColorLayer = "houses_source.psd";
string outputPsdWithoutSelectiveColorLayer = "houses_output.psd";
string outputPngWithoutSelectiveColorLayer = "houses_output.png";

void AssertAreEqual(object expected, object actual)
{
    if (!object.Equals(expected, actual))
    {
        throw new Exception("Objects are not equal.");
    }
}

// Get, check, and change the Selective Color adjustment layer from the image.
using (var image = (PsdImage)Image.Load(sourceFileWithSelectiveColorLayer))
{
    foreach (var layer in image.Layers)
    {
        if (layer is SelectiveColorLayer)
        {
            // Get Selective Color adjustment layer.
            SelectiveColorLayer selcLayer = (SelectiveColorLayer)layer;
            var redCorrection = selcLayer.GetCmykCorrection(SelectiveColorsTypes.Reds);
            var yellowCorrection = selcLayer.GetCmykCorrection(SelectiveColorsTypes.Yellows);
            var greenCorrection = selcLayer.GetCmykCorrection(SelectiveColorsTypes.Greens);
            var blueCorrection = selcLayer.GetCmykCorrection(SelectiveColorsTypes.Blues);

            // Check layers parameters.
            AssertAreEqual(CorrectionMethodTypes.Absolute, selcLayer.CorrectionMethod);

            AssertAreEqual(redCorrection.Cyan, (short)-31);
            AssertAreEqual(redCorrection.Magenta, (short)-12);
            AssertAreEqual(redCorrection.Yellow, (short)27);
            AssertAreEqual(redCorrection.Black, (short)33);

            AssertAreEqual(yellowCorrection.Cyan, (short)-22);
            AssertAreEqual(yellowCorrection.Magenta, (short)-19);
            AssertAreEqual(yellowCorrection.Yellow, (short)8);
            AssertAreEqual(yellowCorrection.Black, (short)0);

            AssertAreEqual(greenCorrection.Cyan, (short)0);
            AssertAreEqual(greenCorrection.Magenta, (short)0);
            AssertAreEqual(greenCorrection.Yellow, (short)0);
            AssertAreEqual(greenCorrection.Black, (short)0);

            AssertAreEqual(blueCorrection.Cyan, (short)58);
            AssertAreEqual(blueCorrection.Magenta, (short)18);
            AssertAreEqual(blueCorrection.Yellow, (short)1);
            AssertAreEqual(blueCorrection.Black, (short)7);

            // Change layers parameters.
            selcLayer.CorrectionMethod = CorrectionMethodTypes.Relative;
            selcLayer.SetCmykCorrection(SelectiveColorsTypes.Reds,
                new CmykCorrection { Cyan = 12, Magenta = -20, Yellow = 10, Black = -15 });
            selcLayer.SetCmykCorrection(SelectiveColorsTypes.Whites,
                new CmykCorrection { Cyan = 15, Magenta = 20, Yellow = -75, Black = 42 });

            image.Save(outputPsdWithSelectiveColorLayer);
            image.Save(outputPngWithSelectiveColorLayer, new PngOptions());
        }
    }
}

// Add and set the Selective color adjustment layer to the image.
using (var image = (PsdImage)Image.Load(sourceFileWithoutSelectiveColorLayer))
{
    // Add Selective Color Adjustment layer.
    SelectiveColorLayer selectiveColorLayer = image.AddSelectiveColorAdjustmentLayer();

    // Set layers parameters.
    selectiveColorLayer.CorrectionMethod = CorrectionMethodTypes.Absolute;
    selectiveColorLayer.SetCmykCorrection(SelectiveColorsTypes.Whites,
        new CmykCorrection { Cyan = 100, Magenta = -100, Yellow = 100, Black = 0 });
    selectiveColorLayer.SetCmykCorrection(SelectiveColorsTypes.Blacks,
        new CmykCorrection { Cyan = 10, Magenta = 15, Yellow = 17, Black = -3 });
    selectiveColorLayer.SetCmykCorrection(SelectiveColorsTypes.Neutrals,
        new CmykCorrection { Cyan = 45, Magenta = 21, Yellow = -14, Black = 0 });
    selectiveColorLayer.SetCmykCorrection(SelectiveColorsTypes.Magentas,
        new CmykCorrection { Cyan = 8, Magenta = -10, Yellow = -14, Black = 25 });

    image.Save(outputPsdWithoutSelectiveColorLayer);
    image.Save(outputPngWithoutSelectiveColorLayer, new PngOptions());
}

See Also

Class CmykChannelMixerLayer Class CmykMixerChannel