[2] XU Changhang, Xie Jing, Chen Guoming, et al. An infrared thermal image processing framework based on superpixel algorithm to detect cracks on metal surface[J]. Infrared Physics & Technology, 2014, 67:266-272.

[5] Md Nasim Reza, In Seop Na, Sun Wook Baek, et al. Rice yield estimation based on K-means clustering with graph-cut segmentation using low-altitude UAV images[J]. Biosystems Engineering, 2019,177: 109-121.

[6] ZHANG Shanwen, WANG Haoxiang, HUANG Wenzhun. Plant diseased leaf segmentation and recognition by fusion of superpixel[J].K-means and PHOG. Optik, 2018, 157: 866-872.

[7] Kumar Gaurav, Umesh Ghanekar. Image steganography based on Canny edge detection, dilation operator and hybrid coding[J]. Journal of Information Security and Applications, 2018, 41: 41-51.

[8] DI Haibin, GAO Dengliang. Gray-level transformation and Canny edge detection for 3D seismic discontinuity enhancement[J]. Computers & Geosciences, 2014, 72: 192-200.

[11] Land E, Mc Cann J. Lightness and Retinex theory[J]. Journal of the Optical Society of America, 1971, 61(1): 1-11.

[12] Macqueen J. Some methods for classification and analysis of multi variate observations[C]// Proc. of Berkeley Symposium on Mathematical Statistics & Probability, 1965(1): 281-297.

[13] Canny J. A computational approach to edge detection[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1986,8(6): 679-698.