Better indexing on bitsavers

On Fri, 2005-05-20 at 10:25 -0500, John Foust wrote: Well I suppose you preserve tags even if you don't understand them when copying etc. When decoding, you just skip any that you don't understand and in theory your decoder either finds no image it can understand and breaks, or it works. Are there any vendor-unique TIFF tags out there that are indirectly related to the image decoding process? I don't remember stumbling across vendor-unique tags that say something like "apply xyz filter after decoding and before displaying" or anything like that, so a decoder should either be able to display the correct image or barf, but not something inbetween. I could be wrong there though... ISTR that the baseline TIFF tags that any decoder should understand support quite a lot of useful fields (including metadata-like stuff, like description, author, timestamp, software package etc.) I tend to find that decoders are pretty good at handling the various tags, they just often seem to be spectacularly crap at processing TIFF files with multiple images in them - often because image tools are often written with a 1:1 mapping between file and image in mind I suppose. cheers Jules