一种基于自适用结构元素的表格框线去除形态学算法

A Form Frame Line Removal Morphology Algorithm Based on Adaptive Structuring Elements

作者针对传统的基于形态学表格框线检测算法的缺陷:结构元素的选取与处理速度问题,提出了一种基于自适用结构元素的表格框线快速去除形态学算法。该算法首先对表格应用简单统计法进行二值化处理;然后选取自适用结构元素的形态学中击中/击不中运算快速准确地提取表格框线,从而提取栏目内字符信息;最后给出了成绩表格处理实例。

The flows of traditional form frame line removal morphology algorithm are analyzed in detail in this paper： the selection of structuring elements and the speed problem. A form frame line removal morphology algorithm based on adaptive structuring elements is proposed. A threshold based on a simple image statistics is used for binarization processing firstly. Then frame lines and characters are efficiently and accurately extracted based on the hit miss transform of adaptive structuring elements. The parsed example of grade table is presented lastly.