Questions About Core Image Filters
Questions About Core Image Filters
- Subject: Questions About Core Image Filters
- From: Thaddeus Cooper <email@hidden>
- Date: Tue, 26 Sep 2006 12:32:09 -0700
I have a couple of questions about core image filters that do not
seem to be addressed in the documentation, so I am looking for some
guidance -- specifically about images shifting around in space after
applying filters.
I am working with a page curl transition (so that I can add a page
curl to an image in a view). After applying the page curl and
examining the extent, the image has shifted from origin 0.0, 0.0 to
-25.0, 333.0 and changed in size from 340x260 to 564x618.. I find
that odd.
1. Is this normal behavior, or is this indicative of something else
that might be wrong?
2. I can shift the image back to the origin and crop it -- which I've
tried and although I specify a cropping rectangle of 0.0, 0.0. 340.0,
260.0, when I examine the image's extent it is 152.0, 0.0, 188.0,
260.0 -- which to me makes absolutely no sense.
If anyone could shed some light on what might be wrong I'd really
appreciate it.
Thanks very much.
Thaddeus O. Cooper
(email@hidden)
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