Efficient Representation of Chrominance for Very Low Bitrate Coding
نویسندگان
چکیده
The paper describes an original method to represent chromi nance in color images and video This method can be combined with an arbitrary technique of luminance representation or compression The two chrominance components are represented by one scalar signal obtained using vector quantization The luminance is encoded entirely indepen dently from chrominance The scalar representation of chrominance ex hibits high redundancy and high correlation with luminance They both are strongly reduced using di erential coding with adaptive prediction that exploits the information about edges extracted from decoded lumi nance component
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