LIC Pencil Drawing Filter for Video

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  • LIC法を用いた鉛筆画風動画生成
  • LICホウ オ モチイタ エンピツガフウ ドウガ セイセイ

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Abstract

Despite of using monotone only, pencil drawing can present rich expressions, and is an attractive either as an expressive sketching or as finished fine art. We propose a new technique for processing an arbitrary video clip into a pencil drawing like animation. Our technique is an extension to the existing method that converts an image into a pencil drawing using LIC. When converting a video to a pencil drawing style movie, shower door effect and flickering occurs. In order to solve the problem, it is necessary to generate a stroke which maintains the coherence across frames. In this paper, we propose a new method for automatically generating a pencil drawing style movies from a videos using LIC. We reduce the flickering by reusing the strokes of the previous frame and add to or remove from it a minimum number of strokes for representing the tone of current frame. The shower door artifact is reduced through the advection of the strokes and paper texture along the optical flow.

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