1 / 25

Pencil Drawing Production Cewu Lu, Li Xu , Jiaya Jia

Pencil Drawing Production Cewu Lu, Li Xu , Jiaya Jia. Speaker: Ying- Jou Chen. Amazing DSP. Proposed Approach. Line Drawing Tone Mapping. Line Drawing. Idea… contour might be related…. Edge?. Not enough…. Sobel Filter. Line Drawing. Not Simply Edges…. Line Drawing- Curve.

giulio
Download Presentation

Pencil Drawing Production Cewu Lu, Li Xu , Jiaya Jia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Pencil Drawing ProductionCewu Lu, Li Xu, JiayaJia Speaker: Ying-Jou Chen

  2. Amazing DSP

  3. Proposed Approach • Line Drawing • Tone Mapping

  4. Line Drawing • Idea… contour might be related… Edge? Not enough… Sobel Filter

  5. Line Drawing Not Simply Edges…

  6. Line Drawing- Curve • Idea… direction detection

  7. Line Drawing- Line Crossing • Idea… CONVOLUTION • Effect of extension

  8. Line Drawing

  9. Line Drawing

  10. Magically….

  11. DONE!

  12. Tone Mapping Histogram

  13. Histogram # of pixels pixel value

  14. Natural Tone Pencil Tone Histogram Equalization

  15. Tone Mapping • Model the shape by…. Gaussian Distribution Uniform Distribution Laplacian Distribution

  16. Natural Tone Pencil Tone

  17. DONE! DONE!

  18. Texture Rendering Chinese Drawing Texture Pencil Texture Rock Texture

  19. Texture Rendering

  20. Texture Rendering To each pixel, we hope that… Pencil Tone

  21. Texture Rendering Smooth

  22. Other examples

  23. Reference • "Combining Sketch and Tone for Pencil Drawing Production", Cewu Lu, Li Xu, JiayaJia, International Symposium on Non-Photorealistic Animation and Rendering (NPAR 2012), June, 2012 • ADMM optimization • YUV RGB transformation http://zh.wikipedia.org/wiki/YUV • Author’swebsite http://appsrv.cse.cuhk.edu.hk/~xuli

More Related