Matlab Projects

 
    Electronics Projects ECE Projects EEE Projects Mechanical Projects Biomedical Projects telecommunication Projects instrumentation projects Projects computer science projects Projects Power Electronics Projects VLSI Projects DSP Projects Matlab Projects IEEE Projects
Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images matlab code, Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images pdf, Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images report, Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images ppt,

Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images

Abstract: The shape-adaptive discrete cosine transform (SA-DCT) transform can be computed on a support of arbitrary shape, but retains a computational complexity comparable to that of the usual separable block-DCT (B-DCT). Despite the near-optimal decorrelation and energy compaction properties, application of the SA-DCT has been rather limited, targeted nearly exclusively to video compression. In this paper, we present a novel approach to image filtering based on the SA-DCT. We use the SA-DCT in conjunction with the Anisotropic Local Polynomial Approximation-Intersection of Confidence Intervals technique, which defines the shape of the transform's support in a pointwise adaptive manner. The thresholded or attenuated SA-DCT coefficients are used to reconstruct a local estimate of the signal within the adaptive-shape support. Since supports corresponding to different points are in general overlapping, the local estimates are averaged together using adaptive weights that depend on the region's statistics. This approach can be used for various image-processing tasks. In this paper, we consider, in particular, image denoising and image deblocking and deringing from block-DCT compression. A special structural constraint in luminance-chrominance space is also proposed to enable an accurate filtering of color images. Simulation experiments show a state-of-the-art quality of the final estimate, both in terms of objective criteria and visual appearance. Thanks to the adaptive support, reconstructed edges are clean, and no unpleasant ringing artifacts are introduced by the fitted transform



 

Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images matlab code, Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images pdf, Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images report, Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images ppt,

Facebook Twitter MTech Projects

Phd Mtech VLSI Projects