In the image processing literature, texture refers in the broadest sense to the pattern of brightness variations within an image or a region within an image. Texture includes such concepts as uniformity, coarseness, regularity, frequency, and linearity.

Ref.: Turner, M. G. & Gardner, R. H. (Hrsg.)(1991): Quantitative Methods in Landscape Ecology. The Analysis and Interpretation of Landscape Heterogeneity. = Ecological Studies, Vol. 82, Springer, New York, Berlin, Heidelberg, Barcelona, Hong Kong, London, Milan, Paris, Singapore, Tokyo, 536 p.