Colour Image Segmentation by Region Growing Based on Conformal Geometric Algebra
We apply conformal geometric algebra (CGA) to classical algorithms for colour image segmentation. Particularly, we modify standard Prewitt quaternionic filter for edge detection and region growing segmentation procedure and use them simultaneously, which is only allowed by common CGA language, more precisely by the notion of flat point in normalised and unnormalised form.
KeywordsConformal geometric algebra Image segmentation Region growing Flat point
We would like to thank to Aleš Návrat for helpful discussions. We thank the anonymous reviewers whose comments have greatly improved this manuscript.
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