自适应门限二值化图像处理，自己最近完成的，还可以用，文件也加了两张图的效果，需要的可以试一试-Adaptive threshold binarization image processing, recently completed its own, but also can be used, the document also increase the effectiveness of the two plans, the needs may try it

adaptive degraded document image binarization

基于论文《自适应模糊文件图像的二值化》 作者：B．Gatos I．Pratikakis S．J．Perantonis的二值化代码。对光照不匀、形变等低质量图片的二值化效果非常非常好。-The paper based on the adaptive fuzzy document image binarization" Author: B.G atos I.P ratikakis S.J.P erantonis binary code. To uneven illumination, def

The implemented Sauvola method uses integral images for fast computation of the threshold function. The Sauvola method is described in: J. Sauvola and M. Pietikainen, Adaptive document image binarization, Pattern Recognition 33, 2000. - ht