public class getImageFeature {  static{  System.loadLibrary("getImageFeatureDll");   }  public native int getImageFeatureByName(String filename);  public native int getImageFeatureByMemory();  public static void main(String[] args) {  getImageFeature test=new getImageFeature();  String filename = "D:/testpic/6af1399a64d10a399ad3247c01656bb7.jpg";  System.out.println(test.getImageFeatureByName(filename));   } }

/* DO NOT EDIT THIS FILE - it is machine generated */#include <jni.h>/* Header for class getImageFeature */#ifndef _Included_getImageFeature#define _Included_getImageFeature#ifdef __cplusplusextern "C" {#endif /* * Class:  getImageFeature * Method: getImageFeatureByName * Signature: (Ljava/lang/String;)I */ JNIEXPORT jint JNICALL Java_getImageFeature_getImageFeatureByName  (JNIEnv *, jobject, jstring); /* * Class:  getImageFeature * Method: getImageFeatureByMemory * Signature: ()I */ JNIEXPORT jint JNICALL Java_getImageFeature_getImageFeatureByMemory  (JNIEnv *, jobject);#ifdef __cplusplus}#endif#endif

#include "getImageFeatureDll.h"#include <opencv2/opencv.hpp>/** Class:  getImageFeature* Method: getImageFeatureByName* Signature: (Ljava/lang/String;)I*/JNIEXPORT jint JNICALL Java_getImageFeature_getImageFeatureByName(JNIEnv *env, jobject obj, jstring filename){ const char *str_filename; str_filename = env->GetStringUTFChars(filename, false); cv::Mat image = cv::imread(str_filename); cv::imshow("test", image); cv::waitKey(20000); return 0;}/** Class:  getImageFeature* Method: getImageFeatureByMemory* Signature: ()I*/JNIEXPORT jint JNICALL Java_getImageFeature_getImageFeatureByMemory(JNIEnv *, jobject){ return 0;}