On Wed, 16 Dec 2009 11:21:27 +0000, SelectSpecs <[email protected]> wrote: > Using a Mac 2.66 Quad running OS10.6.2, I'm creating files with mogrify: > mogrify -quality 25% -type optimize -format jpg ...image.psd > > But the file sizes will not go below 33kb, irrespective of how low I make > the quality. Using Photoshop I can produce the equivalent quality image at > under 2kb. > > Any advice on how to reduce the file size would be appreciated?
It's entirely possible your images have very large metadata packets in them - try adding -strip to your command, or check your output images with exiftool to see what kind of metadata payload they contain - it's very possible for small images to have a majority of their byte budget spent on unnecessary metadata. Also, are you possibly using a large custom ICC profile in your source files? Personally, i'd use a more fine-toothed approach to stripping metadata - for instance, even in thumbs I'd preserve IPTC-IIM versions of the rights information, which won't add much to your file sizes, but strip all XMP. For larger files, I'd preserve XMP as well, but selectively remove some fields. -R _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
