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614e250fd3
Rename features2d #26405 This PR renames the module _features2d_ to _features_ as one of the Big OpenCV Cleanup #25007. Related PR: opencv/opencv_contrib: [#3820](https://github.com/opencv/opencv_contrib/pull/3820) opencv/ci-gha-workflow: [#192](https://github.com/opencv/ci-gha-workflow/pull/192)
28 lines
824 B
C++
28 lines
824 B
C++
#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/features.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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