A color quantization method based on an HMMD color space and a multimedia searching
method using the same in extracting color features for searching multimedia, to
enable searching of multimedia data which has been quantized on different levels.
A quantization method is optimized to be proper for various quantization levels
so as to increase search performance in an HMMD color space. And the interoperability
between color features quantized into different quantization levels is provided
so as to search multimedia generated from different application programs and in
which a quantization rule is defined so as to maintain high search performance.
Preferably, the present invention provides a color quantization method for various
levels, thereby enabling to achieve high search performance on maintaining interoperability.
The present invention provides a multimedia search method enabling to measure the
similarity between features quantized into different levels.
