Legacy ImageMagick Discussions Archive

perhaps see http://www.imagemagick.org/script/command-line-options.php#define jpeg:extent=value Restrict the maximum JPEG file size, for example -define jpeg:extent=400KB. The JPEG encoder will search for the highest compression quality level that results in an output file that does not exceed the ...

I would do this as a script, mostly because I don't care what the "quality" number is, but I do care what the image looks like. The technique I use for my website is to find the greatest compression that gives no more than 1% RMSE from the original image. For ordinary photographs, I find that 1 ...

I have a hundreds of jpg file, with different quality and file size. I would like to compress (lossy) them to reduce file size. The issue is I don't want to use a same command for all of them, because some of them are already heavily compressed and re-copression results in poor quality. Is there a ...