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We present new methods for painterly video processing. Based on our earlier still image processing technique, we "paint over" successive frames of animation, applying paint only in regions where the source video is changing. Image regions with minimal changes, such as due to video noise, are also left alone, using a simple difference masking technique. Optionally, brush strokes may be warped between frames using computed or procedural optical flow.
Hertzmann et al. (Mon,) studied this question.
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