Mat type converting 8-bit data transfer 64

	Mat image1 = imread("C:\\Users\\aa\\Desktop\\6inch\\wafer1.png", 0);

	Mat fImg;
	image1.convertTo(fImg, CV_64FC1, 1, 0);  //1、0分别是比例因子,y = a*x + b

 

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Origin blog.csdn.net/qq_30263737/article/details/91519694