access to the pixel data of an image?
access to the pixel data of an image?
- Subject: access to the pixel data of an image?
- From: Stefan Wolfrum <email@hidden>
- Date: Thu, 6 Sep 2007 21:44:57 +0200
hi all,
for my current Cocoa project (a pure 2D graphics app) I need to look
at each and every pixel of a given image (mostly jpg and raw formats)
because I have to know their color values (preferably in the HSV or
HLS color space).
do you have a pointer for me what docs I should study, which classes
might be helpful etc.?
is the Cocoa wrapper for quartz 2D adequate to use? or should I
directly use Quartz 2D function calls?
I had a look at NSImage and CIImage so far but couldn't find any
pixel data related functions such as "give me a 2D array of color
values that representsteh whole image".
Excuse me if that's a dumb question, I'm still I newbie,
unfortunately... :-(
Thank you so much,
Stefan.
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