On Mon, Oct 18, 2004 at 10:29:16AM +0100, Paul Howarth wrote: > Thornton wrote: > >What is a good app to use on linux to do batch compressing of images? > > > >I used to use Ulead Smart Saver on windows but want to get away from as > >many windows apps as I can. > > Try convert, which is part of the ImageMagick package. Of interest some images will not compress very much. To save space it is common to degrade the image which may be fine for the curent screen resolution but may not be fine when you want a quality print. A good rule of thumb is to compare gzip, compress, bzip2 with various blocking flags to see if the data realy compresses and if you should bother. Some image formats are very compact and other very inefficient. Try it: $ bzip2 -v copy-of-foo.gif copy-of-foo.gif: 3.119:1, 2.565 bits/byte, 67.94% saved, 356033 in, 114133 out. -- T o m M i t c h e l l May your cup runneth over with goodness and mercy and may your buffers never overflow.
