In the manner which compares the texture characteristic quantity every of digital graduation image where it selects the texture characteristic quantity, it selects manner and the device, and the texture characteristic quantity which compare the texture characteristic quantity every of digital graduation image which differs, selects the texture characteristic quantity which displays

摘要

PROBLEM TO BE SOLVED: To provide extracting method and device for texture characteristic quantity capable of extracting a texture characteristic with desired roughness. SOLUTION: This device which extracts texture characteristic quantity representing the texture characteristic of an image from a digital multilevel image by using a cooccurrence matrix has an image storing means 10 storing images, an image size storing means 20 storing a desired image size, an image size converting means 30 converting the size of an image into the desired image size stored in the image size storing means, a cooccurrence matrix calculating means 40 calculating a cooccurrence matrix from the image and a characteristic quantity operating means 50 calculating texture characteristic quantity from the calculated cooccurrence matrix.