Locally Linear Embedding Clustering Algorithm for Natural Imagery

Details Locally Linear Embedding Clustering Algorithm for Natural Imagery Locally Linear Embedding Clustering Algorithm for Natural Imagery

2012-02-20

arxiv.org/abs/1202.4387v1

Mathematics

Geometric Topology

Scientific paper

The ability to characterize the color content of natural imagery is an important application of image processing. The pixel by pixel coloring of images may be viewed naturally as points in color space, and the inherent structure and distribution of these points affords a quantization, through clustering, of the color information in the image. In this paper, we present a novel topologically driven clustering algorithm that permits segmentation of the color features in a digital image. The algorithm blends Locally Linear Embedding (LLE) and vector quantization by mapping color information to a lower dimensional space, identifying distinct color regions, and classifying pixels together based on both a proximity measure and color content. It is observed that these techniques permit a significant reduction in color resolution while maintaining the visually important features of images.

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