textural gradient

textural gradient 

One of the monocular cues of depth perception produced by the change in the appearance of the grain of the structure of a surface, giving the impression that the thin, small details must be further away than the thick, large ones (Fig. T13). See depth perception.enlarge picture" >Fig. T13 An example of textural gradientenlarge pictureFig. T13 An example of textural gradient