Full-color photographs may contain an almost infinite range of color values. Dithering is the most common means of reducing the color range of images down to a fewer number of colors, by taking two colors and interlacing them to get, for all intents and purposes, an average of the two colors. Dithering is generally regarded as being the best method of dithering colors across images as it will produce the closest approximation to the original color of areas in the image. It is also the only method that can dither any set of colors, and as such can be used for all color reduction techniques. ImageConverter Plus allows dithering for images saved in the PCX format . Available color depths are 1, 4, 8, 24 bits.