First my environment:
Hardware: Epson Perfection V200 Photo scanner
Software: xsane-0.995 (Linux)
I scan magazines at 300dpi with this environment, which produces PNM files which are about 25MB (2544x3509 pixel, depth 24). Of course I can't (or am not willing) upload these images directly to an image hoster. Therefore I currently convert the images with the
convert program from
ImageMagick:
convert -resize '1680x1680>' infile outfile.
jpg;
This produces images with a maximum side length of 1680 pixels, the image size is about 300 KB.
My question: Is there a better way to compress the images to a reasonable size?