Created
November 4, 2011 18:30
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Convert 32F to 8U for display
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| Mat img = imread("image.jpg"); | |
| Mat grey; | |
| cvtColor(img, grey, CV_BGR2GREY); | |
| Mat sobelx; | |
| Sobel(grey, sobelx, CV_32F, 1, 0); | |
| double minVal, maxVal; | |
| minMaxLoc(sobelx, &minVal, &maxVal); //find minimum and maximum intensities | |
| Mat draw; | |
| sobelx.convertTo(draw, CV_8U, 255.0/(maxVal - minVal), -minVal); |
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