Texture Description based on Subtexture Components

The growing of multimedia content has motivated the need of tools to do image browsing and annotation; several texture descriptors have been proposed, but the high degree of complexity textures can achieve has limited their success. In this paper the concept of subtexture is introduced in order to make the automatic description of a texture adaptable to its complexity degree. A subtexture component is defined by sets of blobs or emergent patterns that have similar simple features, and can be fully described by a 7-dimensional vector, similar to the descriptor proposed in MPEG-7 standard. Thus, we propose a comprehensive texture description formed by the descriptions of its N subtexture components, that is, a Nx7 matrix where the number of rows is related to the complexity of the texture. In this work a multiscale method to identify the subtexture components is presented. It is based on automatic scale selection for blob detection. Once the subtextures are identified, a global feature analysis provides the attributes of each subtexture component. Finally, the comprehensive descriptor is built from combining all subtexture information