Original color having an influence on color or the effective color which differs according to the environment where property of effective color automatic extracting manner of the image and

摘要

(57) Abstract The effective color which it occurs in the image which was photographed by the installation state of the color glass lens (color filter) of environment and the image equipment where the specified illumination exists and the property of the image equipment, is selected automatically, effective color is adjusted and by the fact that original color of the image is reconstructed, search performance of the image effective color automatic extracting manner of the image which can improve and restoration manner of color of the image and database generation and the image search method which utilize that are offered. All pixels of the image frame by comparison with specified 1st threshold level, after calculating the average hue value (Hue_Ave) of hue of each pixel which possesses the brightness which is smaller than 1st threshold level, it calculates the hue which corresponds to average hue value (Hue_Ave), it decides the hue which was calculated as effective color, making use of that effective color, adjusting the color of the image which is influenced by effective color, by the fact that it reconstructs the original color of the image, it improves the image search performance of the image retrieval system more.