Improved thresholding method based on Tsallis-Havrda-Charvat entropy

Jingjing Chen; Jin Wu

doi:10.1117/12.751262

15 November 2007 Improved thresholding method based on Tsallis-Havrda-Charvat entropy

Jingjing Chen, Jin Wu

Proceedings Volume 6786, MIPPR 2007: Automatic Target Recognition and Image Analysis; and Multispectral Image Acquisition; 678650 (2007) https://doi.org/10.1117/12.751262
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China

Abstract

This paper presents a thresholding method for image segmentation by using an improved thresholding output function on a two-dimensional (2-D) histogram based on Tsallis-Havrda-Charvat entropy principle. The Tsallis-Havrda-Charvat entropy is obtained from two-dimensional histogram which has determined by using the gray value of the pixels and the local average gray value of the pixels. Based on Tsallis-Havrda-Charvat entropy, we obtain the optimal threshold pair by maximizing the criterion function. The threshold pair groups the projection drawing of the 2-D histogram into four quadrants. Then we draw a line passing the optimal point. According to the line, we use the improved thresholding output function to separate the four quadrants into two parts, above the line and below the line. Therefore, the pixels are also grouped into two groups, targets and background. Experiment results show that the proposed method is robust to noise.

Citation Download Citation

Jingjing Chen and Jin Wu "Improved thresholding method based on Tsallis-Havrda-Charvat entropy", Proc. SPIE 6786, MIPPR 2007: Automatic Target Recognition and Image Analysis; and Multispectral Image Acquisition, 678650 (15 November 2007); https://doi.org/10.1117/12.751262

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