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jpeg image data reader

 [1/3] from: mh983:yah:oo at: 5-Jan-2002 14:36


I've been working on a script to read the exif data embedded in jpeg files produced by a digital camera. I noticed the other posts about determining image size and thought maybe it could be of use. For now, I put it on my tripod site: http://mh983.tripod.com I'm still pretty new at this REBOL thing, but hopefully the code is reasonably legible. I haven't tried to figure out yet how to upload a script to the REBOL script library, but I may try that later. As my webpage says, it is very much a work in progress that I just started this last week. It should print all of the fields found in IFD0 and the subIFD (exif IFD). Here is a great resource on the file format that was very useful for me: http://www.ba.wakwak.com/ ~tsuruzoh/Computer/Digicams/exif-e.html mike

 [2/3] from: john_kenyon::mlc::com::au at: 7-Jan-2002 9:16


Mike, Very nice work. Just tested it on a few jpegs from a Fuji camera and it works well. I'll check it on my Kodak camera later too. Cheers, John I've been working on a script to read the exif data embedded in jpeg files produced by a digital camera. I noticed the other posts about determining image size and thought maybe it could be of use. For now, I put it on my tripod site: http://mh983.tripod.com I'm still pretty new at this REBOL thing, but hopefully the code is reasonably legible. I haven't tried to figure out yet how to upload a script to the REBOL script library, but I may try that later. As my webpage says, it is very much a work in progress that I just started this last week. It should print all of the fields found in IFD0 and the subIFD (exif IFD). Here is a great resource on the file format that was very useful for me: http://www.ba.wakwak.com/ ~tsuruzoh/Computer/Digicams/exif-e.html mike

 [3/3] from: jason:cunliffe:verizon at: 6-Jan-2002 17:49


> I've been working on a script to read the exif data > embedded in jpeg files produced by a digital camera. I > noticed the other posts about determining image size and > thought maybe it could be of use. For now, I put it on my > tripod site: http://mh983.tripod.com
Very nice.. Can you tell me more about exif data? How much data what limits etc.. Can I use it to embed REBOL scripts, GPS waypoint etc..? Does it survive editing and recompression within 3rd party graphics software? [Fireworks etc] thanks ./Jason