Quantization method for image data compression employing context modeling algorithm

摘要: A method, system, and manufacture are provided, for use in connection with data processing compression, quantizing a string of values, such as image pixel values. The quantization is achieved by grouping the based on their into predetermined number categories, each category containing same total For category, value, preferably mean value those selected value. All values arc then represented strings having dependency (that is, one or more provide information about other values), modeled method which modeling algorithm defines contexts terms tree structure, basic categories selecting performed per node (i.e., context) basis.