Sven Neumann schrieb: > Hi, > > On Sun, 2009-02-01 at 19:46 +0800, zhangwe...@realss.com wrote: > >> Hello. I read from an article which says jpeg images can be cropped >> losslessly. I searched "lossless gimp crop" on google without good >> findings. Can gimp do lossless cropping? >> > > GIMP doesn't know anything about JPEG images. The image is opened by a > plug-in and the core only gets to see the decompressed image. So if you > crop the image in GIMP, it will have to be recompressed when it is saved > as JPEG again. The JPEG plug-in does a nice job at preserving as much of > the JPEG compression settings as possible to minimize the defects > introduced by the recompression. But you will get slightly better > results with specialised software that works directly on the JPEG data. > Hi. Thanks. You (and Jernej) wrote it very clear!
Can any recommend such an editor for lossless cropping & rotating, better even lossless resizing, if possible. Cropping, rotating and resizing are the only feature my user (not me) uses and my user wanted to have a GUI tool. If there isn't one but only commandline tools, then I'd see if I can re-use my tcl/tk skill to make an opensource tool for this. _______________________________________________ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
