"Highgui.imread"命令不起作用 OpenCV Android

Question

当我调用Highgui.imread命令时，我的手机上会出现意外异常。

我想从SDCard加载一个图像到MAT变量。

File imgFile = new  File("/sdcard/image1.jpg");
if(imgFile.exists())
{ 
 Mat pic1 = Highgui.imread(imgFile.getAbsolutePath()); 
}

我正在使用Galaxy Tab 10.1+Android OS:3.2内核版本2.6.36.3

设备上的错误："应用程序项目1（进程prj.project）已意外停止。请重试。"

提前感谢您的帮助。

谨致问候，阿里

LogCat:

02-06 11:08:23.620: W/dalvikvm(5853): Exception Ljava/lang/UnsatisfiedLinkError; thrown while initializing Lorg/opencv/highgui/Highgui;    
02-06 11:08:23.620: D/AndroidRuntime(5853): Shutting down VM    
02-06 11:08:23.620: W/dalvikvm(5853): threadid=1: thread exiting with uncaught exception (group=0x400fc760)    
02-06 11:08:23.620: E/AndroidRuntime(5853): FATAL EXCEPTION: main    
02-06 11:08:23.620: E/AndroidRuntime(5853): java.lang.ExceptionInInitializerError    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at photo.klu.PhotoKLUActivity$1.onClick(PhotoKLUActivity.java:89)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at android.view.View.performClick(View.java:3127)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at android.view.View$PerformClick.run(View.java:12025)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at android.os.Handler.handleCallback(Handler.java:587)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at android.os.Handler.dispatchMessage(Handler.java:92)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at android.os.Looper.loop(Looper.java:132)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at android.app.ActivityThread.main(ActivityThread.java:4126)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at java.lang.reflect.Method.invokeNative(Native Method)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at java.lang.reflect.Method.invoke(Method.java:491)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at dalvik.system.NativeStart.main(Native Method)    
02-06 11:08:23.620: E/AndroidRuntime(5853): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load opencv_java: findLibrary returned null    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at java.lang.Runtime.loadLibrary(Runtime.java:425)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at java.lang.System.loadLibrary(System.java:554)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     at org.opencv.highgui.Highgui.<clinit>(Highgui.java:313)    
02-06 11:08:23.620: E/AndroidRuntime(5853):     ... 12 more    
02-06 11:08:25.640: I/dalvikvm(5853): threadid=4: reacting to signal 3    
02-06 11:08:25.640: I/dalvikvm(5853): Wrote stack traces to '/data/anr/traces.txt'

Answer 1

如果您无法配置opencv，请查看本教程http://opencv.org/platforms/android.html

如果你首先从openCv-sdk为android调用一个方法，你必须实现；

private BaseLoaderCallback mOpenCVCallBack = new BaseLoaderCallback(this) {
@Override
public void onManagerConnected(int status) {
   switch (status) {
       case LoaderCallbackInterface.SUCCESS:
       {
      Log.i(TAG, "OpenCV loaded successfully");
      // Create and set View
      setContentView(R.layout.main);
       } break;
       default:
       {
      super.onManagerConnected(status);
       } break;
   }
    }
};

然后在您的方法中调用下面的。

 if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
    {
      Log.e(TAG, "Cannot connect to OpenCV Manager");
    }

Answer 2

openCV库未附加到应用程序。请执行以下操作（我假设openCV库已导入到您的工作区）。在包资源管理器>右键单击应用程序项目>属性>库下，单击添加>选择openCV请确保在Java构建路径上没有任何与openCV 相关的内容