提取输入图像的MSER区域，对得到的MSER区域二值图像进行连通域分析，先粗过滤一些明显不符合字符的区域，然后对过滤后的图像进行闭运算。闭运算之后再进行一次细滤除，最后得到包围文本区域的包围盒。-The MSER region of the input image is extracted, and the connected MSER region binary image is analyzed. Finally, some areas that do not meet the charac