Texture-Based Image Similarity
Although the notion of visual texture seems, at first, to be familiar and intuitive, there is no definition of texture that is universally accepted. Texture usually refers to a repetition of a perceptually similar pattern over an image region, such that the region is perceived as homogeneous by a human observer. Often, for structural textures (in contrast to statistical ones) such a pattern is referred to as the “texton”. A pattern and its repetition can often be represented well by a spectral decomposition of the texture which captures the amount of repetition in different scales and in different orientations. In this chapter we use Gabor filters to represent texture. We develop two classes of dissimilarity measures: for homogeneous textures and for images that contain many textures, such as natural images. Finally, we present a preprocessing method to enhance the description of the texture content of images.
KeywordsTexture Feature Natural Image Gabor Filter Gabor Function Homogeneous Texture
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