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This paper presents an iteration self-adapting color image enhancement algorithm to extract visual attention focus in accuracy. Initially, the color space should be translated from RGB to YCbCr where the iteration image enhancement model is deduced in constrain of chroma and hue. The subsequence image evaluation function implements closed-up control to adjust the iteration step and enhancement performance...
The content-based image retrieval (CBIR) system aims at searching and browsing the large image digital libraries based on automatically derived imagery features. This paper introduces two algorithms based on the normalized cut for images clustering. We extract the color and texture features for computing the distance between the images, and take advantage of the bipartition method and minimum spanning...
A digital watermarking method for color image in wavelet domain is proposed. The watermarking information which include a section of template information, is embedded into low-frequency coefficients of Y component in YUV color space. This section of template information defines a kind of relation between the low-frequency coefficients corresponding to the four sub-images obtained by down-sampling...
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