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Reduction of the blocking effect in block-coded images using a model of early human vision

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image of Spatial Vision
For more content, see Multisensory Research and Seeing and Perceiving.

We propose a method, based on lowpass and bandpass components of Granrath's early human vision model, which reduces the blocking effect in block-coded images. The method consists of a lowpass filtering stage to smooth out the blocking effect and a contrast-enhancement stage to increase contrast in the restored image. Experimental results of the method show better performance than that of conventional methods for reducing blocking effects.

Affiliations: 1: Department of EE, Sogang University, C.P.O. Box 1142, Seoul 100-611, Korea


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