Speckle Reduction in Images with WEAD and WECD

  • Jeny Rajan
  • M. R. Kaimal
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4338)


In this paper we discuss the speckle reduction in images with the recently proposed Wavelet Embedded Anisotropic Diffusion (WEAD) and Wavelet Embedded Complex Diffusion (WECD). Both these methods are improvements over anisotropic and complex diffusion by adding wavelet based bayes shrink in its second stage. Both WEAD and WECD produces excellent results when compared with the existing speckle reduction filters. The comparative analysis with other methods were mainly done on the basis of Structural Similarity Index Matrix (SSIM) and Peak Signal to Noise Ratio (PSNR). The visual appearance of the image is also considered.


Synthetic Aperture Radar Synthetic Aperture Radar Image Anisotropic Diffusion Speckle Noise Linear Diffusion 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Jeny Rajan
    • 1
  • M. R. Kaimal
    • 2
  1. 1.NeSTTrivandrumIndia
  2. 2.Department of Computer ScienceUniversity of KeralaTrivandrumIndia

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