RasterImageDither Method (DitheringMethod, Int32)
Performs dithering on the current image.

Namespace: Aspose.Imaging
Assembly: Aspose.Imaging (in Aspose.Imaging.dll) Version: 20.06
Syntax
public void Dither(
	DitheringMethod ditheringMethod,
	int bitsCount
)

Parameters

ditheringMethod
Type: Aspose.ImagingDitheringMethod
The dithering method.
bitsCount
Type: SystemInt32
The final bits count for dithering.
Examples
The following example loads a raster image and performs threshold and floyd dithering using different palette depth.
[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;

    // Perform threshold dithering using 4-bit color palette which contains 16 colors.
    // The more bits specified the higher quality and the bigger size of the output image.
    // Note that only 1-bit, 4-bit and 8-bit palettes are supported at the moment.
    rasterImage.Dither(Aspose.Imaging.DitheringMethod.ThresholdDithering, 4);

    rasterImage.Save(dir + "sample.ThresholdDithering4.png");
}

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

    // Perform floyd dithering using 1-bit color palette which contains only 2 colors - black and white.
    // The more bits specified the higher quality and the bigger size of the output image.
    // Note that only 1-bit, 4-bit and 8-bit palettes are supported at the moment.
    rasterImage.Dither(Aspose.Imaging.DitheringMethod.FloydSteinbergDithering, 1);

    rasterImage.Save(dir + "sample.FloydSteinbergDithering1.png");
}
See Also