In the center there is the original image, and on the right there is the compressed image to which On the left, there is the compressed image, sufferingįrom the blurring artifacts. The result canīe seen in the image below. Noise caused by the quantization in each subband, approximate it with a normallyĭistributed random noise, and re-introduce it during decompression. The core idea of the ennoising strategy is to estimate the amount of quantization Of course, I did not follow the standard, but have attempted Standard transform in the JPEG-2000 standard. Here is based on the Cohen-Daubechies-Feauveau 9/7 wavelet filter, the Propose adding noise to images as to remedy quantization artifacts. In image processing: discrete wavelet transform, quantization, smoothing. This document describes and implements several of the most important functions
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