TEXTURE DESCRIPTION METHOD AND TEXTURE-BASED IMAGE RETRIEVALMETHOD USING GABOR FILTER IN FREQUENCY DOMAIN

摘要

A texture description method in a frequency domain for extracting texture features by transforming and Gabor-filtering an input image into an image of the frequency domain, and a texture-based retrieval method thereof are provided. The texture description method in the frequency domain includes: a first step of transforming an image of a time domain into an image of the frequency domain; a second step of filtering the transformed image using a Gabor filter having N x M filter regions, where N and M are respective predetermined positive integers; a third step of extracting feature values o f the image that has been Gabor-filtered in respective channels of the frequen cy domain division layout corresponding to the N x M filter regions of the Gabo r filter; and a fourth step of deciding a texture descriptor of the image on t he basis of the feature values of the image.