To deal with interpolationpermutedaliasimage, a complete blindseparationmethod is proposed in this paper. Space domain was selected as characteristic domain, the permutedaliasimage was divided into sub-blocks w...
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To deal with interpolationpermutedaliasimage, a complete blindseparationmethod is proposed in this paper. Space domain was selected as characteristic domain, the permutedaliasimage was divided into sub-blocks which was processed by finite-difference. Then, each of the processed sub-blocks was assigned a threshold by detected the features between the pixels and all the thresholds formed a threshold vector. The differential evolution was then performed to obtain the optimal threshold vector for thresholding the differential image into binary one. The permuting image can be separated from the permutedimage by doing a dot products between the source image and binary image. The experimental results demonstrate that, compared with thresholding approach, this algorithm indicates a stronger robustness and can get a better performance for various interpolationmethods.
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