未找到本地执行拼接 [英] No implementation found for native Stitch

问题描述

我在使用Android项目OpenCV的拼接。

I use opencv stitching in android project.

public class MainActivity extends Activity implements OnClickListener {

    private String mWarpType;
    private String mMatchConf;
    private String mConfThresh;

    private SharedPreferences mSettings;
    public static final String SETTINGS                = "Pano_Settings";

    private final String SETTINGS_WARP_TYPE            = "warp";
    private final String SETTINGS_MATCH_CONF           = "match_conf";
    private final String SETTINGS_CONF_THRESH          = "conf_thresh";

    private String mDefaultWarpType                    = "spherical";
    private String mDefaultMatchConf                   = "0.5";
    private String mDefaultConfThresh                  = "0.8";
    ...

    public native int Stitch(Object[] args);    

    public void onClick(View v) {
      switch (v.getId()) {
      case R.id.GoButton:

          List<String> s = new ArrayList<String>();
          s.add("Stitch");
          s.add("/sdcard/tesseract/images1.jpeg");
          s.add("/sdcard/tesseract/images2.jpeg");

          s.add("--warp");
          s.add(mWarpType);
          s.add("--conf_thresh");
          s.add(mConfThresh);
          s.add("--match_conf");
          s.add(mMatchConf);

          s.add("--work_megapix");
          s.add("0.2");
          s.add("--seam_megapix");
          s.add("0.2");
          s.add("--expos_comp");
          s.add("gain");
          s.add("--output");
          s.add("/sdcard/tesseract/");

          Integer i = Stitch(s.toArray());
          Log.d("1",i.toString());
        break;
      default:
        break;
      }
    }

}

启动应用程序，但是当针（s.toArray（））被称为我得到的错误：

application is started but when Stitch(s.toArray()) is called I get the error:

W/dalvikvm(15392): No implementation found for native Lcom/prototype/MainActivity;.Stitch ([Ljava/lang/Object;)I

OpenCV的在职场成功添加和我的项目 - >属性 - > Android的 - >库添加 - > OpenCV的LIB项目
OpenCV的版本2.4.2。
样品从项目的android-OpenCV的全景拍摄。

OpenCV successfully added in the workplace and my project -> Properties -> Android -> Library add -> OpenCV lib project version OpenCV 2.4.2. sample was taken from the project android-opencv-panorama.

推荐答案

您可能复制的原生code作为是从样品，但你的Java类有不同的包装和名称。寻找命名的函数 JAVA_＆LT;一些＆GT; _Stitch（）在你的CPP文件，并将其重命名成为：

You probably copied the native code "as is" from the sample, but your Java class has a different package and name. Look for the function named Java_<some more>_Stitch() in your cpp file, and rename it to become:

Java_com_prototype_MainActivity_Stitch()

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