convert_indexed

Description:

public bool convert_indexed (ConvertDitherType dither_type, ConvertPaletteType palette_type, int num_cols, bool alpha_dither, bool remove_unused, string palette)

Convert specified image to and Indexed image

This procedure converts the specified image to 'indexed' color. This process requires an image in RGB or Grayscale mode. The 'palette_type' specifies what kind of palette to use, A type of '0' means to use an optimal palette of 'num_cols' generated from the colors in the image. A type of '1' means to re-use the previous palette (not currently implemented). A type of '2' means to use the so-called WWW-optimized palette. Type '3' means to use only black and white colors. A type of '4' means to use a palette from the gimp palettes directories. The 'dither type' specifies what kind of dithering to use. '0' means no dithering, '1' means standard Floyd-Steinberg error diffusion, '2' means Floyd-Steinberg error diffusion with reduced bleeding, '3' means dithering based on pixel location ('Fixed' dithering).

Parameters:

this	The image.
dither_type	The dither type to use.
palette_type	The type of palette to use.
num_cols	The number of colors to quantize to, ignored unless (palette_type == GIMP_CONVERT_PALETTE_GENERATE).
alpha_dither	Dither transparency to fake partial opacity.
remove_unused	Remove unused or duplicate color entries from final palette, ignored if (palette_type == GIMP_CONVERT_PALETTE_GENERATE).
palette	The name of the custom palette to use, ignored unless (palette_type == GIMP_CONVERT_PALETTE_CUSTOM).

Returns:

TRUE on success.