Quaternion Colour Texture
نویسندگان
چکیده
The quaternion representation of colour is shown to be effective in the context of colour texture region segmentation in digital colour images. The advantage of using quaternion arithmetic is that a colour can be represented and analyzed as a single entity. A basis for the colour textures occurring in a given image is derived via quaternion principal component analysis of a training set of colour texture samples. A colour texture sample is then projected onto a subset of this basis to obtain a concise (single quaternion) description of the texture. The power of this quaternion colour texture representation is then demonstrated by its use in an algorithm that successfully segments an image into regions of different texture.
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