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On Mon, May 21, 2012 at 11:31 AM, Michael Mol <mikemol@×××××.com> wrote: |
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> |
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> I'm seriously wondering if there might not be something broken with |
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> the .jpeg files I'm spitting out. That laptop (saffron) is in the |
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> middle of an overdue emerge --update --deep --newuse @world, though. |
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> (And I saw it was complaining about 19 blockers...) It may be overdue |
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> for a depclean and some other maintenance. I haven't tweaked things |
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> much, as it's my last functioning Gentoo box until I get kaylee and |
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> inara fixed. |
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|
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It looks like the file uses arithmetic coding, which has legal |
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restrictions (patents, licensing, blah), which means many jpeg |
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implementations do not support it. That probably is why it works in |
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some places and not in others. You should pretty much always use |
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Huffman coding instead of Arithmetic coding if you're using the images |
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on the internet or sharing them with others. The image quality is not |
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affected by this choice, only the way the data is stored in the file. |
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The file size will be slightly larger using Huffman, but in most cases |
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only barely larger. |
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