Fig. 5From: Vector textures derived from higher order derivative domains for classification of colorectal polypsSample slices of one polyp showing the different output variables with gray scale 256. (a): Original intensity; (b): Gradient magnitude; (c): Gradient azimuth angle; (d): Gradient polar angle; (e): Eigenvalue magnitude; (f): Eigenvalue azimuth angle; (g): Eigenvalue polar angleBack to article page