Legacy ImageMagick Discussions Archive

I've solved it myself. After reading through the quantization source code, I found out the correct way to iterate through the "Magick::Quantum *pixels" array. Since IM's Image structure can store each pixel in different colorspaces and presentations at the same time. There may be more than 3 or 4 ...

I'm writing a program to convert PNG color images to a unique YCrCbA bitmap format that ImageMagick cannot directly output. So I need to manually construct the color index map table and then write each pixel in its color index number. The index should be 1 byte thus it limits to 256 colors. Here is ...