IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, PROGRAM, AND RECORDING MEDIUM

PROBLEM TO BE SOLVED: To provide an image processing device capable of discriminating a color image or a gray scale image on which a character and an image or the like other than the character are mixed into a plurality of classes with high accuracy. SOLUTION: This image processing device discriminates image information by a discriminator which learns on the basis of learning data, and comprises a feature amount extracting means for extracting a feature amount from the image information, a feature calculating means for calculating a feature which is a combination of the feature amounts extracted by the feature amount extracting means, a learning means for learning the discriminator by the feature amount calculated by the feature calculating means and the feature amount extracted by the feature amount extracting means, a collating means for collating the discrimination result, by applying teacher data to the discriminator having learned by the learning means, with an ideal discrimination result given from an external, and an optimizing means for changing a combination method of the feature amount by the feature calculating means on the basis of a collation result by the collating means. COPYRIGHT: (C)2006,JPO&NCIPI