Patent ID: 6850644

Claim:
A digital image texture analyzing method comprising the steps of: (a) obtaining a mean (μ 0 ) and a variance (σ 0 ) of pixel values of an original image; (b) obtaining m×n filtered images by filtering the original image using predetermined filters, each having a unique combination of one of m scales and one of n orientations, where m and n are predetermined positive integers; (c) calculating means (μ 11 , μ 21 , . . . , μ mn ) and variances (σ 11 , σ 21 , . . . , σ mn ) of the respective filtered images; and (d) obtaining a texture descriptor having the mean (μ 0 ) and a variance (σ 0 ) of the pixel values of the original image obtained in the step (a), and the means (μ 11 , μ 21 , . . . , μ mn ) and variances (σ 11 , σ 21 , . . . , σ mn ) of the respective filtered images obtained in the step (c), as texture features.