CmykColorHelper.ToCmyk

ToCmyk(int[])

The conversion from ARGB colors to CMYK colors.

public static int[] ToCmyk(int[] argbPixels)

Parameter	Type	Description
argbPixels	Int32[]	The ARGB colors presented as 32-bit integer values.

Return Value

The CMYK colors presented as 32-bit integer values.

See Also

• class CmykColorHelper
• namespace Aspose.Imaging
• assembly Aspose.Imaging

---

ToCmyk(int)

The conversion from ARGB color to CMYK color.

public static int ToCmyk(int argbPixel)

Parameter	Type	Description
argbPixel	Int32	The ARGB color presented as a 32-bit integer value.

Return Value

The CMYK color presented as a 32-bit integer value.

See Also

• class CmykColorHelper
• namespace Aspose.Imaging
• assembly Aspose.Imaging

---

ToCmyk(Color)

The conversion from ARGB color to CMYK color.

public static int ToCmyk(Color pixel)

Parameter	Type	Description
pixel	Color	The ARGB color.

Return Value

The CMYK color presented as a 32-bit integer value.

Examples

The following example fills the central area of a raster image with black pixels using the Aspose.Imaging.RasterImage.SaveCmyk32Pixels method.

[C#]

string dir = @"c:\temp\";

using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.png"))
{
    Aspose.Imaging.RasterImage rasterImage = (Aspose.Imaging.RasterImage)image;

    // Get an integer representation of black in the CMYK color space.
    int blackCmyk = Aspose.Imaging.CmykColorHelper.ToCmyk(Color.Black);

    // The black square.
    int[] pixels = new int[(rasterImage.Width / 2) * (rasterImage.Height / 2)];
    for (int i = 0; i < pixels.Length; i++)
    {
        pixels[i] = blackCmyk;
    }

    // Draw the black square at the center of the image.
    Aspose.Imaging.Rectangle area = new Aspose.Imaging.Rectangle(rasterImage.Width / 4, rasterImage.Height / 4, rasterImage.Width / 2, rasterImage.Height / 2);
    rasterImage.SaveCmyk32Pixels(area, pixels);

    rasterImage.Save(dir + "sample.SaveCmyk32Pixels.png");
}

The following example shows how to convert RGB colors to their CMYK counterparts without applying ICC profiles.

[C#]

Aspose.Imaging.Color[] rgbColors = new Aspose.Imaging.Color[]
{
    Aspose.Imaging.Color.Red,
    Aspose.Imaging.Color.Green,
    Aspose.Imaging.Color.Blue,
};

System.Console.WriteLine("Convert RGB to CMYK without using ICC profiles.");
foreach (Aspose.Imaging.Color rgbColor in rgbColors)
{
    int cmyk = Aspose.Imaging.CmykColorHelper.ToCmyk(rgbColor);
    int c = Aspose.Imaging.CmykColorHelper.GetC(cmyk);
    int m = Aspose.Imaging.CmykColorHelper.GetM(cmyk);
    int y = Aspose.Imaging.CmykColorHelper.GetY(cmyk);
    int k = Aspose.Imaging.CmykColorHelper.GetK(cmyk);

    System.Console.WriteLine("RGB({0},{1},{2})\t\t=> CMYK({3},{4},{5},{6})", rgbColor.R, rgbColor.G, rgbColor.B, c, m, y, k);
}

//The output looks like this:
//Convert RGB to CMYK without using ICC profiles.
//RGB(255,0,0)        => CMYK(0,255,255,0)
//RGB(0,128,0)        => CMYK(255,0,255,127)
//RGB(0,0,255)        => CMYK(255,255,0,0)

See Also

• struct Color
• class CmykColorHelper
• namespace Aspose.Imaging
• assembly Aspose.Imaging

---

ToCmyk(Color[])

The conversion from ARGB colors to CMYK colors.

public static int[] ToCmyk(Color[] pixels)

Parameter	Type	Description
pixels	Color[]	The ARGB colors.

Return Value

The CMYK colors presented as 32-bit integer values.

See Also

• struct Color
• class CmykColorHelper
• namespace Aspose.Imaging
• assembly Aspose.Imaging