A novel pixel gray stretch in wavelet domain and rapid image threshold segmentation algorithm is proposed in view of the case that there is no visible double peak histogram in uneven illumination image. Firstly ， it stretch the image gray a

ＭＡＴＬＡＢ程序实现用水线阈值法分割图像,简单实用-MATLAB implementation water line segmentation image threshold method, a simple and practical