Last Instinct

ChannelColorizer normalization update

by on Mar.14, 2010, under Graphics and effects

The first version of my Color channel colorizer Pixel Bender filter for Flash and Photoshop had some problems with the balancing to preserve detail in the pixture. I decided to take care of this problem and changed the balancing to regular normalization, which normalizes all channels together. I tried this when I was making the previous version, but couldn’t get it to work properly. The solution was to not include the alpha channel in the normalization. Therefore I made an extra separate normalization only for the alpha channel.

I also added so that the normalization works when color values are too low, not only when they are too high, as in the previous version.

After a bit of testing I realized that I mostly wanted to have resuts that did have some normalization, but not full, since this could make the colors a bit dull. To solve this I added the option to set in percent how much normalization to use in the filter, and the result was great. Setting the normalization to 50% preserves both a lot of details and some of the sharp colors.

RGB color conversion

Creative Commons LicenseChannelColorizer by Klas Lundberg is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.5 Sweden.
Feel free to contact me if you want it for commercial use.

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