1. Code samples
2. ColorManagement
3. Converting Pixel Formats

Convert To Indexed

Color Conversion Indexed format Bitmap

Converts to indexed pixel format (optimized for Web).

Сode Snippet

using (var bitmap = new Bitmap("Copenhagen_RGB.jpg"))
{
    bitmap.ColorManagement.Dithering = DitheringType.FloydSteinberg;
    bitmap.ColorManagement.Palette = ColorPalette.Create(bitmap, 64);
    bitmap.ColorManagement.Convert(PixelFormat.Format8bppIndexed);

    bitmap.Save("PF_ConvertToIndexed.png");
}

Input

Output

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