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f270e8d040
* G-API: Added G-API Overview slides & its source code - Sample code snippets are moved to separate files; - Introduced a separate benchmark to measure Fluid/OpenCV performance; - Added notes on API changes (it is still a 4.0, not a 4.2 talk!) - Added a "Metropolis" beamer download-n-build script. * G-API: Addressed review issues on G-API overview slides
28 lines
544 B
C++
28 lines
544 B
C++
#include <opencv2/videoio.hpp>
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#include <opencv2/highgui.hpp>
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#include <opencv2/gapi.hpp>
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#include <opencv2/gapi/core.hpp>
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#include <opencv2/gapi/imgproc.hpp>
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int main(int argc, char *argv[])
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{
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(void) argc;
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(void) argv;
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using namespace cv;
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Mat in_mat = imread("lena.png");
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Mat gx, gy;
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Sobel(in_mat, gx, CV_32F, 1, 0);
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Sobel(in_mat, gy, CV_32F, 0, 1);
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Mat mag;
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sqrt(gx.mul(gx) + gy.mul(gy), mag);
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Mat out_mat;
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mag.convertTo(out_mat, CV_8U);
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imwrite("lena-out.png", out_mat);
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return 0;
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}
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