auto-levels effect

• Subject: auto-levels effect
• From: email@hidden
• Date: Tue, 23 Aug 2005 02:47:05 -0400
• Delivered-to: email@hidden
• Delivered-to: email@hidden
• User-agent: Internet Messaging Program (IMP) 3.2.2

Is it possible to write a code for the core image kernel that finds the
brightest and darkest pixel/fragment and does something with that information?
I can' find a way to get the min and max within the image or any histogram
data. Is this a difficulty with pixel shaders in general? Thanks in advance,
this list is an invaluable tool for learning about quartz comps and shaders in
general.

-jack
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