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In the paper the optimization is applied to determine the threshold of wavelet coefficients in image de-noising aiming at grayscale image corrupted by additive white Gaussian noise and Daubechies wavelet transform. In the method the entropy of an image is the optimality criteria, which makes image de-noising a process of optimizing objective index of an image. The example proves that the presented...
Quantization, defined as the act of attributing a finite number of grey-levels to an image, is an essential task in image acquisition and coding. It is also intricately linked to various image analysis tasks, such as denoising and segmentation. In this paper, we investigate quantization combined with regularity constraints, a little-studied area which is of interest, in particular, when quantizing...
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