Legacy ImageMagick Discussions Archive

Hi,

I was using QuantizeImage() to change image to greyscale and restrict color number to 2 color, nothing fancy, but it is extremely slow. Anyone knows anyway to boost it or any function to replace it?

thanks

If you're using the Q16 build of ImageMagick and you don't specifically need 16-bits-per-channel pixels, use the Q8 build instead. It's about 2x as fast. You can determine which version of ImageMagick you're using by running