HMMD color space based color quantization method and Method for searching multimedia feature

The present invention relates to a color feature extraction as cows used in the multimedia retrieval using the collar, it will with each other on the HMMD color space based on color quantization method in which to enable efficient retrieval of multimedia data between the quantized level to another. The invention HMMD, and would like to customize the optimum quantization method, which can be as high search performance in the color space in the various quantization levels, each quantized in a variety of quantization levels to enable the search among the multimedia generation in other applications, color feature sogan the interoperability is available and at the same time present a wide range of levels of a color quantizing method to that, can be cross-searched while maintaining the operability performance to define the quantization rules to maintain high search performance, as well as quantized into different level It characterized intended to present a method for measuring the degree of similarity between the cows.