This method avoids the small dynamic range in global thresholding and misjudgement caused by fixed divided regions in adaptive thresholding.
本方法避免了整体阈值法动态范围小和传统自适应阈值法固定分区所造成的误判。
A binarization method for digital camerabased document image was proposed. The method is a combination of the global thresholding, local thresholding and the gray gradient method.
提出了一种数码相机拍摄的文本图像的二值化方法，该方法是全局阈值、局部阈值与灰度梯度方法的结合。
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