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113 lines
2.5 KiB
C++
113 lines
2.5 KiB
C++
#include <opencv2/core/core.hpp>
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#include <opencv2/imgproc/imgproc.hpp>
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#include <opencv2/contrib/contrib.hpp>
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#include <opencv2/highgui/highgui.hpp>
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using namespace cv;
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int main11(int argc, char* argv[])
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{
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TickMeter timer;
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vector<double> times;
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Scalar x;
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double s = 0.0;
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int nIters = 100;
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for (int i = 0; i < nIters; i++)
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{
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timer.start();
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Mat m(4096, 1024, CV_32F);
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//m.setTo(Scalar(33.0));
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randu(m, 0, 256);
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x = sum(m);
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timer.stop();
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times.push_back(timer.getTimeMilli());
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timer.reset();
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x = sum(m);
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s += x[0];
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}
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for (int i = 0; i < nIters; i++)
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printf("time[%d] = %.2f ms\n", i, times[i]);
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printf("s = %f\n", s);
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}
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int main3(int argc, char* argv[])
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{
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int w = 1280;
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int h = 720;
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Mat m1(w, h, CV_8U);
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Mat m2(w, h, CV_8U);
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Mat m3(w, h, CV_8U);
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Mat dst(w, h, CV_8U);
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Scalar x;
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double s = 0.0;
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TickMeter timer1;
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TickMeter timer2;
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TickMeter timer3;
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int nIters = 100;
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for (int i = 0; i < nIters; i++)
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{
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randu(m1, 0, 256);
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randu(m2, 0, 256);
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equalizeHist(m1, m1);
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equalizeHist(m2, m2);
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timer1.start();
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add(m1, m2, dst);
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timer1.stop();
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normalize(dst, dst, dst.total());
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timer2.start();
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m3 = m1 + m2;
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timer2.stop();
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timer3.start();
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dst = m3 + dst;
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timer3.stop();
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x = sum(dst);
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s += x[0];
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}
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printf("s = %f\n", s);
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printf("timer1 = %.2f ms\n", timer1.getTimeMilli()/nIters);
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printf("timer2 = %.2f ms\n", timer2.getTimeMilli()/nIters);
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printf("timer3 = %.2f ms\n", timer3.getTimeMilli()/nIters);
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}
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const char* message = "Hello Android!";
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int main2(int argc, char* argv[])
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{
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// print message to console
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printf("%s\n", message);
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// put message to simple image
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Size textsize = getTextSize(message, CV_FONT_HERSHEY_COMPLEX, 3, 5, 0);
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Mat img(textsize.height + 20, textsize.width + 20, CV_32FC1, Scalar(230,230,230));
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putText(img, message, Point(10, img.rows - 10), CV_FONT_HERSHEY_COMPLEX, 3, Scalar(0, 0, 0), 5);
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// save\show resulting image
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#if ANDROID
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imwrite("/mnt/sdcard/HelloAndroid.png", img);
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#else
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imshow("test", img);
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waitKey();
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#endif
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return 0;
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}
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