GifImage.Dither

GifImage.Dither method

Apply dithering to the current image. This process enhances image quality by reducing color banding and improving color transitions, resulting in a smoother appearance.

public override void Dither(DitheringMethod ditheringMethod, int bitsCount, 
    IColorPalette customPalette)

Parameter	Type	Description
ditheringMethod	DitheringMethod	The dithering method.
bitsCount	Int32	The final bits count for dithering.
customPalette	IColorPalette	The custom palette for dithering.

Examples

The following example loads a GIF 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.gif"))
{
    Aspose.Imaging.FileFormats.Gif.GifImage gifImage = (Aspose.Imaging.FileFormats.Gif.GifImage)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.
    gifImage.Dither(Aspose.Imaging.DitheringMethod.ThresholdDithering, 4, null);

    gifImage.Save(dir + "sample.ThresholdDithering4.png", new Aspose.Imaging.ImageOptions.PngOptions());
}

using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Load(dir + "sample.gif"))
{
    Aspose.Imaging.FileFormats.Gif.GifImage gifImage = (Aspose.Imaging.FileFormats.Gif.GifImage)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.
    gifImage.Dither(Aspose.Imaging.DitheringMethod.FloydSteinbergDithering, 1, null);

    gifImage.Save(dir + "sample.FloydSteinbergDithering1.png", new Aspose.Imaging.ImageOptions.PngOptions());
}

GifImage.Dither

GifImage.Dither method

Examples

See Also