Subject:
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Re: img2sticker: Convert images into .ldr stickers
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Newsgroups:
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lugnet.cad
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Date:
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Thu, 30 Jun 2005 00:16:45 GMT
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Viewed:
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2424 times
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In lugnet.cad, Timothy Gould wrote:
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Its just a pity that with 24bit colour everywhere, aliasing is used on
everything (and of course it is hard to reverse). I remember in the good old
days of 256 colour images where aliasing was only for the very, very best
pictures.
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Just as a note, it’s actually antialiasing, not aliasing. Aliasing (aka
jaggies) is the problem that antialiasing solves. And you’re right; it’s very
difficult to undo normally. On the other hand, for images that stickers are
likely to be made for, down-sampling to very few colors will mostly get rid of
the problem, and the pixels can be cleaned up by hand after that.
--Travis
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Message has 1 Reply:
 | | Re: img2sticker: Convert images into .ldr stickers
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| (...) I did know that ;-) (and checked through all documents to make sure I had it right). I blame it on posting too long after I'd turned into a pumpkin. The thing is, anti-aliasing should be invertible if you know the routine used to perform it in (...) (19 years ago, 30-Jun-05, to lugnet.cad, FTX)
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Message is in Reply To:
| | Re: img2sticker: Convert images into .ldr stickers
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| (...) I suspect that using this would be risky. My program actually implements a find-nearest colours routine but when dealing with aliased images, often the aliasing will come out to be grey, dark grey or even weirder colours (I match in HSV space (...) (19 years ago, 29-Jun-05, to lugnet.cad, FTX)
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