Abstract
Title : Deblocking DCT-Based Compressed Images with Weighted Total Variation
Authors : François Alter, Sylvain Durand and Jacques Froment
Coding systems based on block DCT, such as JPEG standard, are known to produce blocking and Gibbs effects. We propose a method to remove these artifacts without smoothing images and without loosing there perceptual features. It consists in an weighted Total Variation minimization constrained by the knowledge of quantization intervals. A fast algorithm is proposed and experiments suggest better performance than state-of-the-art deblocking algorithms.