Ore image thresholding using bi-neighbourhood Otsu's approach
Gewen Zhang, Genghuan Liu, Hengde Zhu, Bingchang Qiu · Electronics Letters · 2010
A new thresholding algorithm based on two neighbourhoods and Otsu's method is proposed. For each pixel, its two neighbourhoods are chosen by image and object sizes. The thresholds of neighbourhoods are optimised by Otsu's method, and then every pixel is binarised through the minimum of thresholds. Experimental results show that the proposed algorithm improves thresholding performance efficiently, especially for multi-object and uneven lighting images.