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Leaf (Differential)

Original image: www.flickr.com/photos/zaigee/1796447364/in/photostream

 

This image was taken by comparing each pixel's color with that of its left neighbor. The difference was compared to a threshold value, and the threshold was used to determine if each pixel was colored black or white.

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Uploaded on January 6, 2012
Taken on January 6, 2012