1 / 13

Progressive decoding method for fractal image compression

Progressive decoding method for fractal image compression. Sourcs: IEE Proc.-Vis. Image Signal Process., Vol. 151, No. 3, June 2004 Authurs: C. He, S.X. Yang and X. Huang Presented by: Shih-Chang.Chang Date: 4/21 2005. Outline. Introduction Fractal image compression Decoding scheme

shereed
Download Presentation

Progressive decoding method for fractal image compression

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. Progressive decoding method for fractal image compression • Sourcs: IEE Proc.-Vis. Image Signal Process., Vol. 151, No. 3, June 2004 • Authurs: C. He, S.X. Yang and X. Huang • Presented by: Shih-Chang.Chang • Date: 4/21 2005

  2. Outline • Introduction • Fractal image compression • Decoding scheme • Experimental results • Conclusion

  3. Introduction • In particular, the existing decoding scheme is a special case of the proposed controllable decoding scheme when its control parameter is set as one.

  4. fractal image compression (cont.)

  5. fractal image compression (cont.) pattern Ι 0° 1. 16 2 45° ……………………… … *8 8*8 16*16 256*256 …

  6. fractal image compression (cont.) compare Ri 8*8 1,2,0.5 Index table

  7. decoding scheme (cont.) …… …… μ0 μ1 μn 1,2,0.5 • μn+1=T(μn) • Exist Index table

  8. decoding scheme (cont.) 1-λ …… λ …… μ0 μ1 μn 1,2,0.5 • μn+1=(1-λ) μn+ λT(μn), λ=(0,1] • Propose

  9. decoding scheme (cont.) exist Propose

  10. Experimental results(cont.)

  11. Experimental results(cont.)

  12. Experimental results(cont.)

  13. Conclusion • The existing rigid decoding scheme, the proposed scheme provides a better choice for some applications that need progressive decompression. • Increasing sequence {λn} with 0<λn ≦1 is used,instead of the constant parameterλ.

More Related