The process of image treatment is as follow: filter, enhance, making binary image by adaptive threshold, edge detection and so on.

本文所采用的图像处理主要步骤为：滤波、增强、自适应阈值二值化、边缘提取等预处理。

youdao

In preprocessing, optimal threshold value method and smooth technology are adopted to process sample form image.

预处理阶段，使用最佳阈值二值化方法和平滑技术处理样本表格图像。

youdao

But after the Gauss filter process, the threshold image is changed into smooth one which has smaller burr and has better connectedness.

提出一种“高斯滤波”的方法去除这些白点，使二值化图像平滑、少毛刺，并具有较好的连通性。

youdao