کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
529240 | 869639 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An improved no-search fractal image coding method based on a fitting plane An improved no-search fractal image coding method based on a fitting plane](/preview/png/529240.png)
In this paper a fast and efficient no-search fractal image coding method based on a modified gray-level transform which uses a fitting plane is presented. The improved gray-level transform can reduce the minimum matching error between a given range block and its corresponding domain block, and thus, it can enhance the possibility of successful domain-range matching. In comparison with our previous scheme which uses an adaptive plane, the improved scheme results in a considerable acceleration of the encoding process, decreases the compression ratio and improves the quality of the reconstructed images in the meanwhile. Comparing with Furao’s no-search scheme, our improved scheme can get higher PSNR at higher bpp and almost the same PSNR at lower bpp. Although it uses more transform coefficients, such a fitting plane method can speed up the encoding process with the quality of the reconstructed images improved.
Journal: Image and Vision Computing - Volume 28, Issue 8, August 2010, Pages 1303–1308