codecs/imagequant/README.md
See example.html
int version()Returns the version of libimagequant as a number. va.b.c is encoded as 0x0a0b0c
RawImage quantize(std::string buffer, int image_width, int image_height, int numColors, float dithering)Quantizes the given images, using at most numColors, a value between 2 and 256. dithering is a value between 0 and 1 controlling the amount of dithering. RawImage is a class with 3 fields: buffer, width, and height.
RawImage zx_quantize(std::string buffer, int image_width, int image_height, float dithering)???