mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
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27 lines
826 B
27 lines
826 B
#include <jni.h> |
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#include <opencv2/core.hpp> |
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#include <opencv2/imgproc.hpp> |
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#include <opencv2/features2d.hpp> |
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#include <vector> |
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using namespace std; |
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using namespace cv; |
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extern "C" { |
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JNIEXPORT void JNICALL Java_org_opencv_samples_tutorial2_Tutorial2Activity_FindFeatures(JNIEnv*, jobject, jlong addrGray, jlong addrRgba); |
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JNIEXPORT void JNICALL Java_org_opencv_samples_tutorial2_Tutorial2Activity_FindFeatures(JNIEnv*, jobject, jlong addrGray, jlong addrRgba) |
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{ |
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Mat& mGr = *(Mat*)addrGray; |
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Mat& mRgb = *(Mat*)addrRgba; |
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vector<KeyPoint> v; |
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Ptr<FeatureDetector> detector = FastFeatureDetector::create(50); |
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detector->detect(mGr, v); |
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for( unsigned int i = 0; i < v.size(); i++ ) |
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{ |
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const KeyPoint& kp = v[i]; |
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circle(mRgb, Point(kp.pt.x, kp.pt.y), 10, Scalar(255,0,0,255)); |
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} |
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} |
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}
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