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- W2034717037 abstract "This paper proposes an accurate reversible algorithm without any distortion conditions such as a print-san process for converting full color images to gray images while preserving the chroma and spatial resolution of the images. In our previous study, we proposed a reversible color-to-gray algorithm using a second-level Haar wavelet transform with a packet assignment technique. We have improved this algorithm by devising a color embedding technique. The proposed algorithm distributes color information effectively in the one-level wavelet subbands for preserving the chroma and spatial resolution. Experimental results show that the proposed algorithm can achieve a higher accuracy of recovering color images from the textured gray images of the original color images. We also present a practical application of the proposed algorithm to a color-hiding image transmission; this application permits color recovery only to a specific user with a key." @default.
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- W2034717037 date "2010-11-01" @default.
- W2034717037 modified "2023-10-06" @default.
- W2034717037 title "Accurate reversible color-to-gray mapping algorithm without distortion conditions" @default.
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- W2034717037 doi "https://doi.org/10.1016/j.patrec.2010.07.014" @default.
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