Legacy ImageMagick Discussions Archive

So, another option is to break up your image into smaller pieces, say 50x50 pixels. Then find the average saturation of each piece. Then find the maximum of these averages. This worked very well, I'm getting a very clear distiction in my samples, thanks a lot for the detailed solution The script is...

Thanks for all the options. I'm trying to classify scanned manga/comics images on grayscale and color. The grayscale can be "linear scale" from yellowed/not balanced scans. I still trying to choose a good test, this album have two images http://imgur.com/a/aNspJ, the first one I want to be...

So change the command to use -colorspace HSI or HSB or HCL(p). Any of those seems to work fine to get Saturation, since L/I/B are all based upon a single hexcone model. Thank you, I'm not getting any more false positives now. Does your scaling tool allow you to set the colorspace or type for the ou...

Hello, I'm trying to test for grayscale images using the "saturation test" describe by fmw42 on this post: http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=19580#p81226 I'm getting a lot of false positives from png images upscaled with waifu2x[1]. This album have a sampl...