1. 下载 OpenCV-3.0.0-android-sdk-1.zip
2. 打开 intellj,新建立一个 android 工程后选择工程属性，导入模块(Import module from external model" with Eclipse option)，选择文件夹 OpenCV-3.0.0-android-sdk\sdk\java
   
   
3. 设置工程依赖
   
   

package com.example.testopencv;

import android.content.Intent;

import android.graphics.BitmapFactory;

import android.net.Uri;

import android.view.View;

import android.widget.Button;

import org.opencv.android.BaseLoaderCallback;

import org.opencv.android.LoaderCallbackInterface;

import org.opencv.android.OpenCVLoader;

import org.opencv.android.Utils;

import org.opencv.core.Mat;

import org.opencv.core.Point;

import org.opencv.core.Scalar;

import android.os.Bundle;

import android.widget.ImageView;

import android.app.Activity;

import android.graphics.Bitmap;

import org.opencv.imgproc.Imgproc;

import java.io.FileNotFoundException;

import java.io.InputStream;

public class MyActivity extends Activity {

    /**

     * Called when the activity is first created.

     */

    private static final int SELECT_PHOTO = 100;

    private Button selectbt;

    private Button processbt;

    private Bitmap image;

    private ImageView iv;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        selectbt = (Button) findViewById(R.id.button);

        processbt = (Button) findViewById(R.id.start);

        iv = (ImageView) findViewById(R.id.imageView);

//选择图片

        selectbt.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);

                photoPickerIntent.setType("image/*");

                startActivityForResult(photoPickerIntent, SELECT_PHOTO);

            }

        });

        processbt.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_3_0_0, MyActivity.this, mLoaderCallback);

            }

        });

    }

    @Override

    protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {

        super.onActivityResult(requestCode, resultCode, imageReturnedIntent);

        switch(requestCode) {

            case SELECT_PHOTO:

                if(resultCode == RESULT_OK){

                    Uri selectedImage = imageReturnedIntent.getData();

                    InputStream imageStream = null;

                    try {

                        imageStream = getContentResolver().openInputStream(selectedImage);

                    } catch (FileNotFoundException e) {

                        e.printStackTrace();

                    }

                    image = BitmapFactory.decodeStream(imageStream);

                }

        }

    }

//process button

    private BaseLoaderCallback mLoaderCallback = new BaseLoaderCallback(this) {

        @Override

        public void onManagerConnected(int status) {

            if (status == LoaderCallbackInterface.SUCCESS ) {

                mainProcess();

            } else {

                super.onManagerConnected(status);

            }

        }

    };

// 增加文字在图像上

    private void mainProcess() {

        Mat m = new Mat();

        Utils.bitmapToMat(this.image, m);

        Imgproc.putText(m, "=====OPENCV PUTTEXT TEST=====", new Point(20, 40), 3, 1, new Scalar(0, 255, 0, 255), 2);

        Bitmap bm = Bitmap.createBitmap(m.cols(), m.rows(), Bitmap.Config.ARGB_8888);

        Utils.matToBitmap(m, bm);

        iv.setImageBitmap(bm);

    }

    @Override

    protected void onResume() {

        super.onResume();

    }

}

增加权限

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

          package="com.example.testopencv"

          android:versionCode="1"

          android:versionName="1.0">

	<uses-sdk android:minSdkVersion="17"/>

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

	<application android:label="@string/app_name" android:icon="@drawable/ic_launcher">

		<activity android:name="MyActivity"

		          android:label="@string/app_name">

			<intent-filter>

				<action android:name="android.intent.action.MAIN"/>

				<category android:name="android.intent.category.LAUNCHER"/>

			</intent-filter>

		</activity>

	</application>

</manifest>

ref

http://answers.opencv.org/question/16993/display-image/

APK download

http://pan.baidu.com/s/1ntN9KBv

source code

http://pan.baidu.com/s/1i3D8Aqh