Nadia BenYoussef and Aicha Bouzid, Color Edge Detection using Quaternion Convolution and Vector Gradient. DOI: 10.5220/0006229601350139, In Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2017), pages 135-139, ISBN: 978-989-758-225-7, SCITEPRESS – Science and Technology Publications, Lda. Download (free PDF): http://www.scitepress.org/Documents/2017/62296/62296.pdf
Abstract: In this paper, a quaternion-based method is proposed for color image edge detection. A pair of quaternion mask is used for horizontal and vertical filter since quaternion convolution is not commutative. The detection procedure consists of two steps: quaternion convolution for edge detection and gradient vector to enhance edge structures. Experimental results demonstrate its capabilities on natural color images.
Keywords: Quaternion Convolution, Gradient Vector, Edge Detection, Color Image.
Source: http://www.scitepress.org/Documents/2017/62296/62296.pdf, accessed: 28 Dec. 2017.