Two-layered Image Compression Combining Wavelet and the SecondGeneration Bandelet
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    Abstract:

    An image can be decomposed into two parts, uniform structural part and geometric texture part. Based on this idea, this paper proposes an efficient two-layered image compression method using the second generation Bandelets and wavelets. Firstly, an original image f is decompose into u and v , where u represents the structural part and vthe texture part, then uandvare compressed by using wavelets and the second generation Bandelets respectively. The paper adopts a top-down algorithm of quadtree segmentation, which optimizes the quadtree construction of the second generation Bandelet. Numerical experiments prove that our method outperforms Bandelets or JPEG2000 compression system in both visual effect and objective SSIM value.

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History
  • Received:July 20,2007
  • Revised:
  • Adopted:
  • Online: February 28,2013
  • Published:
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