Mr. Binbin Su Profile

Binbin Su

at Xi'an Polytechnic Univ

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Proceedings Article | 9 August 2018 Paper

Anisotropic Gaussian kernels edge detection algorithm based on the chromatic difference

Bin-Bin Su, Mei-Hua Gu, Miao-Miao Wang, Zhi-Lei Wang

Proceedings Volume 10806, 108062Q (2018) https://doi.org/10.1117/12.2502846

KEYWORDS: Edge detection, Image processing, Color difference, RGB color model

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The three channels in color images are related to each other, but the edge detection based on gray images tend to ignore the correlation between them. In this paper, we focus on the relationship between every component, highlighting the edge change caused by the color information. Anisotropic Gaussian kernels(ANGKs) edge detection algorithm based on the chromatic difference is proposed in order to improve the performance of edge detection in color images. The proposed algorithm focuses on the chromatic difference among three components. First we derive the color difference S from the gray scale Y and the three channels in RGB color space. Then we use the ANGKs to calculate the gradient magnitude and the direction of S and Y to get S_mag and Y_mag, respectively. The final edges are obtained by double threshold processing after fusing magnitudes of S_mag and Y_mag and non-maximum suppression. We evaluates the performance of the proposed algorithm qualitatively and quantitatively for non-noise images and noise images. The experimental results show that the performance of the proposed algorithm is comparable to other approach.

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