We present a reversible method to convert color graphics and pictures to gray images based on mapping colors to low-visibility high-frequency textures. From a monochrome textured image, the decoder can identify the textures and recover the color information. An image is textured by carrying a wavelet transform and replacing band-pass sub-bands by the chrominance images. The low-pass sub-band is the same as that of the luminance signal. The decoder performs a wavelet transform on the received gray image and recovers the chrominance channels. Registration problems are discussed and examples are presented.
Color embedding into gray images
IEEE International Conference on Image Processing 2005 ; 3 ; III-944
2005-01-01
1140079 byte
Conference paper
Electronic Resource
English
Color Embedding Into Gray Images
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