Patent Document ID: 4617682
Application ID: 06715876
Patent Status: 1

Claim One:
1. A method of automatic quantitative measurement of textures by image analysis for measuring textures of a material containing various optical anisotropic textures, comprising the steps of; (a) picking up a microscopic texture image of the material by a TV camera, (b) dividing the texture image picked up by the TV camera into a plurality of pixels arranged vertically and horizontally, brightness of the pixels being classified into a plurality of stages to be stored in a frame memory as gray levels of the pixels, (c) selecting a portion of the image stored in the frame memory to be a base area, (d) selecting at least one reference area on the stored image, said reference area being equal in shape to the base area and displaced from the base area in an optional direction, (e) obtaining gray level variations of the reference area with respect to the base area, and (f) identifying the textures based on a correlation between the textures to be measured and the gray level variations concerning the textures.