OpenCV到JNI如何使其工作？ [英] OpenCV to JNI how to make it work?

问题描述

我正在使用opencv和java进行面部检测，在这种追求中，我发现了这个JNI2OPENCV文件....但是我对如何使其工作感到困惑，任何人都可以帮助我吗？

http://img519.imageshack.us /img519/4803/askaj.jpg

，以下是FaceDetection.java

  class JNIOpenCV {
 static {
 System.loadLibrary（JNI2OpenCV）; 
} 
 public native int [] detectFace（int minFaceWidth，int minFaceHeight，String cascade，String filename）; 
} 
 
 public class FaceDetection {
 private JNIOpenCV myJNIOpenCV; 
 private FaceDetection myFaceDetection; 
 
 public FaceDetection（）{
 myJNIOpenCV = new JNIOpenCV（）; 
 String filename =lena.jpg; 
 String cascade =haarcascade_frontalface_alt.xml; 
 
 int [] detectedFaces = myJNIOpenCV.detectFace（40，40，cascade，filename）; 
 int numFaces = detectedFaces.length / 4; 
 
 System.out.println（numFaces =+ numFaces）; （int i = 0; i< numFaces; i ++）{
 System.out.println（Face+ i +：+ detectedFaces [4 * i + 0] + + detectedFaces [4 * i + 1] ++ detectedFaces [4 * i + 2] ++ detectedFaces [4 * i + 3]）; 
} 
} 
 
 public static void main（String args []）{
 FaceDetection myFaceDetection = new FaceDetection（）; 
} 
} 
  

任何人告诉我如何使这项工作Netbeans的？我试过Google，但是对这个特定主题的帮助是非常糟糕的。

我已经在netbeans项目中将整个文件夹添加为Llibrary，并且我尝试运行该文件，跟随着。

线程main中的异常java.lang.UnsatisfiedLinkError：FaceDetection.JNIOpenCV.detectFace（IILjava / lang / String; Ljava / lang / String ;）FaceDetection.JNIOpenCV.detectFace（Native Method）上的
在FaceDetection.FaceDetection中的
。< init>（FaceDetection.java:19）
在FaceDetection.FaceDetection.main（FaceDetection .java：29）
Java结果：1
BUILD SUCCESSFUL（总时间：2秒）


<任何人都告诉我确切的工作方式吗？像我所需要做的一样？

解决方案

我已经创建了一个使用OpenCV 2.3.1和Eclipse而不是Netbeans的工作Android示例。

此小教程介绍火炬手后的机器人。该页面还包含必要的步骤和源代码。

I am tring to use opencv and java for face detection, and in that pursit i found this "JNI2OPENCV" file....but i am confused on how to make it work, can anyone help me?

http://img519.imageshack.us/img519/4803/askaj.jpg

and the following is the FaceDetection.java

class JNIOpenCV {
    static {
        System.loadLibrary("JNI2OpenCV");
    }
    public native int[] detectFace(int minFaceWidth, int minFaceHeight, String cascade, String filename);
}

public class FaceDetection {
    private JNIOpenCV myJNIOpenCV;
    private FaceDetection myFaceDetection;

    public FaceDetection() {
        myJNIOpenCV = new JNIOpenCV();
        String filename = "lena.jpg";
        String cascade = "haarcascade_frontalface_alt.xml";

    int[] detectedFaces = myJNIOpenCV.detectFace(40, 40, cascade, filename);
    int numFaces = detectedFaces.length / 4;

        System.out.println("numFaces = " + numFaces);
        for (int i = 0; i < numFaces; i++) {
            System.out.println("Face " + i + ": " + detectedFaces[4 * i + 0] + " " + detectedFaces[4 * i + 1] + " " + detectedFaces[4 * i + 2] + " " + detectedFaces[4 * i + 3]);
        }
    }

    public static void main(String args[]) {
        FaceDetection myFaceDetection = new FaceDetection();   
    }
}

CAn anyone tell me how can i make this work on Netbeans?? I tried Google but help on this particular topic is very meger.

I have added the whole folder as Llibrary in netbeans project and whe i try to run the file i get the followig wrroes.

Exception in thread "main" java.lang.UnsatisfiedLinkError: FaceDetection.JNIOpenCV.detectFace(IILjava/lang/String;Ljava/lang/String;)[I at FaceDetection.JNIOpenCV.detectFace(Native Method) at FaceDetection.FaceDetection.<init>(FaceDetection.java:19) at FaceDetection.FaceDetection.main(FaceDetection.java:29) Java Result: 1 BUILD SUCCESSFUL (total time: 2 seconds)

CAn anyone tell me the exact way to work with this? like what all i have to do?

解决方案

I have created a working Android example using OpenCV 2.3.1 and Eclipse instead of Netbeans.

This small tutorial describes a robot following torchlight. The page contains the necessary steps and the source code as well.

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