69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
#include <iostream>
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#include "opencv2/core/opengl_interop.hpp"
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#include "opencv2/highgui/highgui.hpp"
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#include "opencv2/gpu/gpu.hpp"
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using namespace std;
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using namespace cv;
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using namespace cv::gpu;
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int main()
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{
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cout << "This program demonstrates using alphaComp" << endl;
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cout << "Press SPACE to change compositing operation" << endl;
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cout << "Press ESC to exit" << endl;
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namedWindow("First Image", WINDOW_NORMAL);
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namedWindow("Second Image", WINDOW_NORMAL);
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namedWindow("Result", WINDOW_OPENGL);
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setGlDevice();
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Mat src1(640, 480, CV_8UC4, Scalar::all(0));
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Mat src2(640, 480, CV_8UC4, Scalar::all(0));
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rectangle(src1, Rect(50, 50, 200, 200), Scalar(0, 0, 255, 128), 30);
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rectangle(src2, Rect(100, 100, 200, 200), Scalar(255, 0, 0, 128), 30);
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GpuMat d_src1(src1);
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GpuMat d_src2(src2);
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GpuMat d_res;
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imshow("First Image", src1);
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imshow("Second Image", src2);
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int alpha_op = ALPHA_OVER;
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const char* op_names[] =
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{
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"ALPHA_OVER", "ALPHA_IN", "ALPHA_OUT", "ALPHA_ATOP", "ALPHA_XOR", "ALPHA_PLUS", "ALPHA_OVER_PREMUL", "ALPHA_IN_PREMUL", "ALPHA_OUT_PREMUL",
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"ALPHA_ATOP_PREMUL", "ALPHA_XOR_PREMUL", "ALPHA_PLUS_PREMUL", "ALPHA_PREMUL"
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};
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for(;;)
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{
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cout << op_names[alpha_op] << endl;
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alphaComp(d_src1, d_src2, d_res, alpha_op);
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imshow("Result", d_res);
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char key = static_cast<char>(waitKey());
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if (key == 27)
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break;
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if (key == 32)
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{
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++alpha_op;
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if (alpha_op > ALPHA_PREMUL)
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alpha_op = ALPHA_OVER;
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}
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}
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return 0;
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}
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