If you're up for the programming headaches involved, one way to deal
with very large images is to cut them up into tiles. For example,
cutting each image into 4 tiles can saving them in JPEG format can be
considerably smaller than the original image. I believe the
effectiveness would depend on your content, and of course will only
work in a compressed format like JPEG where each tile has a chance to
be optimized by the compression algorithm separately. You could
potentially load the tiles into a group of image objects and then
manipulate the whole group at once.
If this is going on a CD, can you not literally use Graphic Converter?
I believe it is scriptable. If you cut the resolution in half (which
will double the dimensions), THEN scale to 50% you should end up with
the original image size with half the resolution.
One last thought, you could attempt to use imageData -- skip every
other pixel to get "half" resolution and see how the quality turns out.
Hope that helps...
[email protected] wrote:
Will increasing the jpeg compression do it? ie. set the jpegQuality
to 1 -> export img....as jpeg
Maybe... I'll have to see if using such a low quality would destroy
the image entirely. The docs indicate anything under 50 isn't going
to look too great, but I'll experiment. Thanks for the idea.
--
Jacqueline Landman Gay | [email protected]
HyperActive Software | http://www.hyperactivesw.com
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