On Thu, 13 Mar 2003 [EMAIL PROTECTED] wrote: > On 13 Mar 2003 18:44:49 +1100 > James Gregory <[EMAIL PROTECTED]> wrote: > > > > I have some images, they are gifs, and they're approximately 14000 > > pixels square. I'd really like to view them, and ideally perform > > transformations such as scaling to a less insane size. > > I suspect the problem is the uncompressed size > Assuming they're 24bit, that's 14000 x 14000 x 24/8 = 588,000,000 bytes > i.e. ~ 588 Mb. So you might need a Gig of RAM to work on them. > > A quick search for a image slicer only turned up windows shareware ... > but surely there is something for Linux out there somewhere.
libungif, formerly known as giflib might be what you need. ftp://ftp.ayamura.org/pub/graphics/ has copies of both of them, wheras they seem to be gone from the primary site. Could be patent problems? There's a bunch of utilities in there which require limited memory. eg gifrsiz to resize (by simple deletion of pixels I think rather than averaging over an area). Also gifburst which will segment the image into smaller ones. Incidentally, the main LZW patent expires in June this year. Andrew ------------------------------------------------------------------ Andrew McNaughton In Sydney and looking for work [EMAIL PROTECTED] http://staff.scoop.co.nz/andrew/cv.doc Mobile: +61 422 753 792 -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
