#|opencv canny边缘检测

void cannyImg() { //载入原始图 Mat srcImage = imread("1.jpg"); imshow("原图", srcImage); Mat edge; //转为灰度图像 cvtColor(srcImage, edge, COLOR_BGR2GRAY); //滤波降噪 blur(edge, edge, Size(3, 3)); //Canny边缘检测 Canny(edge, edge, 3, 9, 3); //显示效果图 imshow("效果图", edge); waitKey(0); return ; }

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