androidopencv;提取

opencv libs文件太大，没有放到项目里，你需要到https://opencv.org/releases.html下载3.3.1的Android pack，解压，将OpenCV-android-sdk\sdk\native\libs下的文件拷贝到项目OpenCvJava\OpenCvLibrary\libs下，不拷贝的话你还可以在手机上安装OpenCV-android-sdk\apk\OpenCV_3.3.1_Manager_3.31_armeabi.apk

package com.znd.opencvjava;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.support.annotation.Nullable;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.widget.ImageView;

import org.opencv.android.Utils;
import org.opencv.core.Core;
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.imgproc.Imgproc;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IO

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-11-01 14:17  OpenCvJava\
     目录           0  2017-11-01 11:47  OpenCvJava\app\
     文件        1181  2017-11-01 11:45  OpenCvJava\app\build.gradle
     目录           0  2017-10-27 11:20  OpenCvJava\app\libs\
     文件         941  2017-10-27 09:45  OpenCvJava\app\proguard-rules.pro
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\
     目录           0  2017-11-01 11:48  OpenCvJava\app\src\main\
     文件         839  2017-11-01 10:15  OpenCvJava\app\src\main\AndroidManifest.xml
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\java\
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\java\com\
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\java\com\znd\
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\java\com\znd\opencvjava\
     文件        4983  2017-11-01 10:42  OpenCvJava\app\src\main\java\com\znd\opencvjava\IdCardActivity.java
     文件        1422  2017-11-01 10:45  OpenCvJava\app\src\main\java\com\znd\opencvjava\ImageRecyclerAdapter.java
     文件        2033  2017-11-01 11:35  OpenCvJava\app\src\main\java\com\znd\opencvjava\MainActivity.java
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\res\
     目录           0  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable\
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\res\drawable-hdpi\
     文件        3358  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable-hdpi\ic_launcher.png
     文件        5084  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable-hdpi\ic_launcher_round.png
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\res\drawable-mdpi\
     文件        2386  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable-mdpi\ic_launcher.png
     文件        3179  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable-mdpi\ic_launcher_round.png
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\res\drawable-xhdpi\
     文件        4648  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable-xhdpi\ic_launcher.png
     文件        7381  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable-xhdpi\ic_launcher_round.png
     文件      547639  2017-10-26 14:39  OpenCvJava\app\src\main\res\drawable-xhdpi\sfz.png
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\res\drawable-xxhdpi\
     文件        7008  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable-xxhdpi\ic_launcher.png
     文件       11545  2017-10-27 09:45  OpenCvJava\app\src\main\res\drawable-xxhdpi\ic_launcher_round.png
     目录           0  2017-11-01 11:09  OpenCvJava\app\src\main\res\drawable-xxxhdpi\
............此处省略187个文件信息