数字电视节目中马赛克的检测算法设计与试验

Design and Experiment of Mosaic Detection in Digital TV Program

本文提出一种基于马赛克块直线边缘检测并延长使其交叉标识的方法来检测图像中的马赛克。首先,对图像进行边缘识别;其次,对边缘图像进行霍夫变换来识别直线;最后,延长这些直线,通过其相交点来识别马赛克块。本算法基于OpenCV库函数实现,并通过大量计算对比和数据分析来寻找出最佳检测参数,完成预期实验。

This paper proposes a method of mosaics detection in images based on block’s straight edge and intersection points which are formed by the extended straight edge.Firstly,edge detection is performed on the image.Secondly,Hough transform is performed on the edge image to recognize lines.Finally,extend the lines and identify the mosaic blocks by their intersection points.This algorithm is based on the OpenCV library,and through a lot of calculation and data analysis to fnd the best detection parameters,successfully performed the expected experiment.