... ProcessingVolume 2008, Article ID 691924, 15 pagesdoi:10.1155/2008/691924 Research Article Learning How to Extract Rotation-Invariant and Scale-Invariant Features from Texture ImagesJavier A. Montoya-Zegarra,1, ... addressed to Javier A. Montoya-Zegarra, jmontoyaz@gmail.comReceived 2 October 2007; Revised 1 January 2008; Accepted 7 March 2008Recommended by C. Charrier Learning how to extract texture features from ... ProcessingFigure 6: Texture images from the Brodatz data set used in our experiments. From left to right, and from top to bottom, they include Bark,Brick, Bubbles, Grass, Leather, Pigskin, Raffia, Sand, Straw,...