本文主要讲讲怎样对Mat矩阵进行mask操作，其实也就是对Mat矩阵的滤波操作，俗称卷积，参考文献为opencv自带的tutiol及其code.

　　开发环境：ubuntu12.04+opencv2.4.2+Qt4.8.2+QtCreator2.5.

　　实验功能：

　　单击Open image按钮，手动选择所需滤波的原图片。

　　单击Setting按钮，弹出对话框，选择滤波所用的模式，这里有2种模式，分别为自己实现滤波功能和采用opencv自带的滤波函数filter2D实现。

　　单击Process按钮，实现图片滤波过程，并将滤波结果显示在图片窗口中。

　　滤波完成后，图片下方法显示滤波所采用的模式及其花耗的时间。可以方便对2种模式的效率进行对比。

-In this paper, talk about how Mat Matrix mask operation is on the Mat matrix filtering operation, commonly known as the convolution the Reference opencv comes tutiol its code development environment: ubuntu12.04+opencv2.4.2+Qt4.8.2+QtCreator2 .5. experimental feature: click Open image button, manually select the desired filtering the original image. Click Setting button, pop-up dialog box, select the filter mode, where there are two kinds of mode, respectively, for their own filtering and adoption the opencv comes filtering function filter2D the Click the Process button, the image filtering process, and filter results are shown in the picture window. After the completion of the filter, under the picture display mode used by the filter and its time spent a. Can easily compare the efficiency of the two kinds of patterns.