Creating Drawings from Digital Images

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Creating Drawings from Digital Images
Description

 There are many algorithms out there for non-photorealistic rendering of images to look like  drawings. Jin et al and Li et al create drawings from images by creating directional lines that  match the intensity of the image. However, the resulting images don’t stylistically look like an  artist drew them. Efros et al found that image quilting can be used to transfer a specific drawing  style to an image such that it looks like it has actually been drawn by an artist. I will attempt to implement his algorithm to create drawings from digital images.

 Plan

 I believe the following steps will be necessary to creating drawings from digital images that resemble the drawings of famous artists.
1. Split the source texture (for example Enrico Donati’s drawing) into overlapping blocks of size B.
2. Split the source image into overlapping blocks of size B.
3. Choose a block from the source texture such that it has similar intensity as of the block in  the source image and such that the overlap with other blocks meets some sort of  similarity threshold.
4. Find the minimum cost boundary between the new block and the previously pasted 
blocks and then paste the new block into the image respecting the boundary.
5. Update existing algorithm until it produces desired results. On suggested update is to 

repeat the algorithm multiple times with decreasing block sizes

 Alexei A. Efros and William T. Freeman. 2001. Image quilting for texture synthesis and transfer. 
InProceedings of the 28th annual conference on Computer graphics and interactive 
techniques(SIGGRAPH '01). ACM, New York, NY, USA, 341-346.
Nan Li and Zhiong Huang. 2003. A feature-based pencil drawing method. In Proceedings of the 
1st international conference on Computer graphics and interactive techniques in Australasia and 
South East Asia (GRAPHITE '03). ACM, New York, NY, USA, 135-ff.
Wang Jin, Bao Hujun, Zhou Weihua, Peng Qunsheng, and Xu Yingqing. 2002. Automatic 
image-based pencil sketch rendering. J. Comput. Sci. Technol. 17, 3 (May 2002), 347-355.

 DOWNLOAD SOURCE CODE CLICK HERE

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