Re: JPG's poor quality
Charles Logan <clogan@bluenorthernsoftware.com> writes:
> The problem is most noticeable if text is used, but any object
> placed on a canvas with any drawing program will have a smudgy,
> ghost like shadow 20-40 pixels around the object, as well as washed
> out and blotchy looking color in the object itself.
JPEG compression is designed for photographs, which have smoother
gradations in color. When it's used for text or line art, or
anything which has sharp transitions between different colors, JPEG
compression will end up "smudging" it.
You can sort of solve this by upping the JPEG compression quality all
the way, but that will result in a very large JPEG. It's better for
this kind of image to use PNG or GIF files because their lossless
compression will not affect the image, and will result in a
significantly smaller image file.
--
Alan Shutko <ats@acm.org> - I am the rocks.
Looking for a developer in St. Louis? http://web.springies.com/~ats/
Play Rogue, visit exotic locations, meet strange creatures and kill them.
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