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代码说明：

#include #include #include #include #include #include #define LOG_TAG "native"#define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)extern "C"{using namespace cv;using namespace std;CascadeClassifier *faceClassifier;ANativeWindow *nativeWindow;JNIEXPORT void JNICALL Java_com_study_imagefacerecognition_MainActivity_loadModel(JNIEnv *env, jobject instance, jstring detectMode_);JNIEXPORT jboolean JNICALL Java_com_study_imagefacerecognition_MainActivity_process(JNIEnv *env, jobject instance, jobject bitmap);JNIEXPORT void JNICALL Java_com_study_imagefacerecognition_MainActivity_setSurfaceview(JNIEnv *env, jobject instance, jobject surface, jin