Android Studio配置OpenCV

最新推荐文章于 2025-06-17 16:51:09 发布

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最新推荐文章于 2025-06-17 16:51:09 发布

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本文链接：https://blog.youkuaiyun.com/weixin_42815846/article/details/122795637

1、下载最新zip

https://sourceforge.net/projects/opencvlibrary/files/opencv-android/

解压

2、创建工程或使用已有的

3、File -> New -> Import Module…
选中sdk中的java

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接下来的操作默认即可

4、若出现Gradle Sync Errors
进入OpenCV的module的build.gradle
把compileSdkVersion 和targetSdkVersion 改成和工程一样
buildToolsVersion 或可忽略

5、添加opencv依赖到工程File -> Project Structure
在这里插入图片描述
点击加号添加opencv

6、添加Native Libraries
复制如下libs到ProjectName/app/src/main
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并改名为jniLibs

7、添加相机许可
打开AndroidManifest.xml，添加如下

    <uses-permission android:name="android.permission.CAMERA"/>

    <uses-feature android:name="android.hardware.camera" android:required="false"/>
    <uses-feature android:name="android.hardware.camera.autofocus" android:required="false"/>
    <uses-feature android:name="android.hardware.camera.front" android:required="false"/>
    <uses-feature android:name="android.hardware.camera.front.autofocus" android:required="false"/>

效果如下
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8、检验是否安装成功
如下代码来自互联网非本人开发

修改MainActivity.java为如下

package opencvproject.com;

import java.util.List;

import org.opencv.android.BaseLoaderCallback;
import org.opencv.android.CameraBridgeViewBase.CvCameraViewFrame;
import org.opencv.android.LoaderCallbackInterface;
import org.opencv.android.OpenCVLoader;
import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.MatOfPoint;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.core.Size;
import org.opencv.android.CameraBridgeViewBase;
import org.opencv.android.CameraBridgeViewBase.CvCameraViewListener2;
import org.opencv.imgproc.Imgproc;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.view.View.OnTouchListener;
import android.view.SurfaceView;

public class MainActivity extends Activity implements OnTouchListener, CvCameraViewListener2 {
   
   
    private static final String  TAG              = "MainActivity";

    private boolean              mIsColorSelected = false;
    private Mat                  mRgba;
    private Scalar               mBlobColorRgba;
    private Scalar               mBlobColorHsv;
    private ColorBlobDetector    mDetector;
    private Mat                  mSpectrum;
    private Size                 SPECTRUM_SIZE;
    private Scalar               CONTOUR_COLOR;

    private CameraBridgeViewBase mOpenCvCameraView;

    private BaseLoaderCallback  mLoaderCallback = new BaseLoaderCallback(this) {
   
   
        @Override
        public void onManagerConnected(int status) {
   
   
            switch (status) {
   
   
                case LoaderCallbackInterface.SUCCESS:
                {
   
   
                    Log.i(TAG, "OpenCV loaded successfully");
                    mOpenCvCameraView.enableView();
                    mOpenCvCameraView.setOnTouchListener(MainActivity.this);
                } break;
                default:
                {
   
   
                    super.onManagerConnected(status);
                } break;
            }
        }
    };

    public MainActivity() {
   
   
        Log.i(TAG, "Instantiated new " + this.getClass()