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| Author | Home page images not displaying in Cyberdog (Read 30372 times) | ||||||||||||||
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wove
1024 MB  Posts: 1363 
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on: February 16, 2023, 04:18
The home page has a big graphic promoting something or the other. For some reason starting a few months back +/- that graphic stopped displaying in Cyberdog. Cyberdog uses Quicktime for graphic/media display, so I am not sure why that would be. Not a big deal, but coming here in something other than Cyberdog, just seems wrong. 
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Bolkonskij
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Administrator 1024 MB  Posts: 2023
Reply #1 on: February 16, 2023, 14:09
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Interesting. It's just regular .jpg files that make up the site and we haven't changed anything. Does Cyberdog display jpg files fine otherwise? I'd really like to be Cyberdog compatible if possible.
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68040
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512 MB Posts: 950 68k - thy kingdom come, thy will be done !
Reply #2 on: February 16, 2023, 15:06
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The compression part of JPEG is not uniform across platforms. I actually just yesterday encountered a case where a modern Linux(!) tool was unable to convert an entire string of NASA Jpegs because it couldn't handle the messed up data structure inside. That is even more concerning when dealing with WebP images, which are basically JPEG files, but with a compression algorithm adapted for display on the world wide web. Unfortunately, giving that its part of the JPG family of file formats, some tools (and websites) still use the suffix JPG or JPEG for these files. Yet no standard jpeg program can handle WebP compression. So the take away part of it is that JPEG != JPEG and if you want to be absolutely sure it wurks then try to stick with old fashioned GIF or PNG. Naturally that's not always an option as jpg files are known for their prime compression ratio. Yet each coin got two sides.
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wove
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1024 MB Posts: 1363
Reply #3 on: February 16, 2023, 15:50
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It is just the big top image that does not display. An image for Radeon Graphics displays fine. Images that are drug from Cyberdog to the desktop show up as OpenDoc Draw files on the desktop and open in the opendoc draw part. The opendoc draw editor, handles any format supported by QuickTime. While other images on the home page can be drug to the desktop and open fine, the top most image produces an "invalid image format error". One of the features I like in opendoc is being document centric, it generally makes formats user transparent. The opendoc draw part opens both draw and paint formats and only exposes the tools appropriate for the format of the image it opens. In the case of the big opening image on System7Today, opendoc appears to be unable to sort out what format it is suppose to open. This is being posted from CyberDog 2.0.
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