arXiv:1701.09037cs.CV
A New Method for Removing the Moire' Pattern from Images
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Abstract
During the last decades, denoising methods have attracted much attention of researchers. The conventional method for removing the Moire' pattern from images is using notch filters in the Frequency-domain. In this paper a new method is proposed that can achieve a better performance in comparison with the traditional method. Median filter is used in some part of spectrum of noisy images to reduce the noise. At the second part of this paper, to demonstrate the robustness of the proposed method, it is implemented for some noisy images that have moire' pattern. Experiments on noisy images with different characteristics show that the proposed method increases the PSNR values compared with previous methods.
The article doesn't say, but te method described in the article is called a notch filter. Here are some links on it, [0], [1], [2], [4]. Instead of cutting a sharp edge on the frequency domain, it's better that the filter blur the edge to avoid introducing too much artifacts…
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