Scale and Texture

Real-world objects often have no uniform surface but show distinct patterns (Fig. 14.1). Our visual system is capable of recognizing and distinguishing such patterns with ease, but it is difficult to describe the differences precisely. A pattern which characterizes objects is called a texture in image processing. Actually, textures demonstrate the difference between an artificial world of objects whose surfaces are only characterized by the color and reflectivity properties to that of real-world imagery.