Fig. 4. Result of non-linear approximation. (a) Original image, (b) Results: full line shows the dependence of PSNR of the re- constructed image on the number of coefficients kept for the new method. The dotted line shows the same dependence for the stan- dard method.
The third author would like to thank Prof. Minh Do for fruitful interactions on directional image analysis.
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Fig. 5. The image ’Cameraman’. (a) Original image, (b) noised
), (c) denoised by the standard method
= 20.54dB), (d) denoised by the new method (
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Fig. 6. Result of denoising of the image ’Cameraman’. (a) The
of the denoised image on the number of
the directions involved in the analysis, (b) The full line shows the dependence of of the denoised image on the input for the new method. The dotted line shows the same dependence
for the standard method.