The JPEG still picture compression standard
Communications of the ACM - Special issue on digital multimedia systems
Psychovisual and Statistical Optimization of Quantization Tables for DCT Compression Engines
ICIAP '01 Proceedings of the 11th International Conference on Image Analysis and Processing
Bilateral Filtering for Gray and Color Images
ICCV '98 Proceedings of the Sixth International Conference on Computer Vision
De-noising by soft-thresholding
IEEE Transactions on Information Theory
Adaptive wavelet thresholding for image denoising and compression
IEEE Transactions on Image Processing
Feature-based wavelet shrinkage algorithm for image denoising
IEEE Transactions on Image Processing
Multiresolution Bilateral Filtering for Image Denoising
IEEE Transactions on Image Processing
Embedded coring in MPEG video compression
IEEE Transactions on Circuits and Systems for Video Technology
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The chroma noise effect seriously reduces the quality of digital images and videos, especially if they are acquired in low-light conditions. This paper describes the DCT-CNR (Discrete Cosine Transform-Chroma Noise Reduction), an efficient chroma noise reduction algorithm based on soft-thresholding. It reduces the contribution of the DCT coefficients having highest probability to be corrupted by noise and preserves the ones corresponding to the details of the image. Experiments show that the proposed method achieves good results with low computational and hardware resources requirements.