A Context Sensitive Texture Nib

Commonly, a “nib” refers to the point of a pen. When used with reference to painting packages, a nib refers to the pattern with which one draws. We introduce a technique for painting with smart nibs that draw and blend textures into an existing image. These nibs look in the neighborhood of pixels to be drawn and determine color values that create textures that blend in naturally with what is already in the image. Our technique is based on mimicking second order statistics of samples of scanned textures, typically taken from photographs of real textures occurring in nature. We use Color Co-Occurrence Matrices to capture and optimize these second order statistics. This technique is shown to provide interactive response and good performance over a broad range of stationary textures, from periodic to stochastic.

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