摘要：
paddingBottom=“@dimen/activity_vertical_margin”8android:src=“@drawable/head”/>:textSize=“20dp”/>：布局_宽度=“0dp”42android:layout_高度=“180dp”43android:src:“@dravable/head
本项目采用Face++第三方接口，项目实现了两张图片的人脸识别和对比，得到相似度等信息
项目步骤如下：
一、所需权限
<uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
二、第三方app id app key
项目采用了Face++第三方接口，可自行注册获取
三、添加依赖和sdk
1. 将FaceppSDK.jar文件放到libs路径下。
2. gradle中添加一下依赖：
compile files('libs/FaceppSDK.jar')四、布局文件
Face++ 1：1对比
页面两个ImageView 点击选择本地图片，button点击比对，比对结果在下方TextView 展示
1 <?xml version="1.0" encoding="utf-8"?> 2 <ScrollView 3 xmlns:android="http://schemas.android.com/apk/res/android" 4 xmlns:tools="http://schemas.android.com/tools" 5 android:layout_width="match_parent" 6 android:layout_height="match_parent" 7 android:paddingBottom="@dimen/activity_vertical_margin" 8 android:paddingLeft="@dimen/activity_horizontal_margin" 9 android:paddingRight="@dimen/activity_horizontal_margin" 10 android:paddingTop="@dimen/activity_vertical_margin" 11 tools:context="com.example.lifen.facecomparedemo.MainActivity"> 12 13 <LinearLayout 14 android:layout_width="match_parent" 15 android:layout_height="match_parent" 16 android:orientation="vertical"> 17 18 <LinearLayout 19 android:layout_width="match_parent" 20 android:layout_height="wrap_content" 21 android:orientation="horizontal"> 22 23 <ImageView 24 android:id="@+id/img1" 25 android:layout_width="0dp" 26 android:layout_height="180dp" 27 android:layout_weight="1" 28 android:scaleType="centerCrop" 29 android:src="@drawable/head"/> 30 31 <TextView 32 android:layout_width="wrap_content" 33 android:layout_height="match_parent" 34 android:gravity="center" 35 android:text="VS" 36 android:textColor="@android:color/black" 37 android:textSize="20dp"/> 38 39 <ImageView 40 android:id="@+id/img2" 41 android:layout_width="0dp" 42 android:layout_height="180dp" 43 android:layout_weight="1" 44 android:scaleType="centerCrop" 45 android:src="@drawable/head"/> 46 47 </LinearLayout> 48 49 <Button 50 android:id="@+id/compareBtn" 51 android:layout_width="match_parent" 52 android:layout_height="wrap_content" 53 android:layout_marginTop="@dimen/activity_horizontal_margin" 54 android:text="比对"/> 55 56 <TextView 57 android:id="@+id/resultBtn" 58 android:layout_width="match_parent" 59 android:layout_height="wrap_content" 60 android:layout_marginTop="@dimen/activity_horizontal_margin" 61 android:background="#eeeeee" 62 android:padding="6dp"/> 63 64 </LinearLayout> 65 </ScrollView>
五、页面 activity
1 package com.example.lifen.facecomparedemo; 2 3 import android.content.ContentResolver; 4 import android.content.Intent; 5 import android.graphics.Bitmap; 6 import android.graphics.BitmapFactory; 7 import android.net.Uri; 8 import android.os.Bundle; 9 import android.os.Handler; 10 import android.os.Message; 11 import android.support.v7.app.AlertDialog; 12 import android.support.v7.app.AppCompatActivity; 13 import android.text.TextUtils; 14 import android.util.Base64; 15 import android.util.Log; 16 import android.view.View; 17 import android.widget.Button; 18 import android.widget.ImageView; 19 import android.widget.TextView; 20 import android.widget.Toast; 21 22 import com.megvii.cloud.http.CommonOperate; 23 import com.megvii.cloud.http.Response; 24 25 import java.io.ByteArrayOutputStream; 26 import java.io.FileNotFoundException; 27 28 /** 29 * 人脸对比 1：1 30 * 31 * @author LiFen 32 */ 33 public class MainActivity extends AppCompatActivity { 34 private static final String TAG = "MainActivity"; 35 private static final int REQUEST_CODE1 = 11; 36 private static final int REQUEST_CODE2 = 12; 37 ImageView mImageView1; 38 ImageView mImageView2; 39 Button mCompareBtn; 40 TextView mResultText; 41 private String mImgBase641; 42 private String mImgBase642; 43 String key = "";//api_key 44 String secret = "";//api_secret 45 private final static int i = 100; 46 private Handler handler = new Handler(){ 47 @Override 48 public void handleMessage(Message msg) { 49 if(msg.what == i){ 50 mResultText.setText((String)msg.obj); 51 } 52 } 53 }; 54 @Override 55 protected void onCreate(Bundle savedInstanceState) { 56 super.onCreate(savedInstanceState); 57 setContentView(R.layout.activity_main); 58 59 mImageView1 = (ImageView) findViewById(R.id.img1); 60 mImageView2 = (ImageView) findViewById(R.id.img2); 61 mCompareBtn = (Button) findViewById(R.id.compareBtn); 62 mResultText = (TextView) findViewById(R.id.resultBtn); 63 if(TextUtils.isEmpty(key) || TextUtils.isEmpty(secret)){ 64 AlertDialog.Builder builder = new AlertDialog.Builder(this); 65 builder.setMessage("please enter key and secret"); 66 builder.setTitle(""); 67 builder.show(); 68 return; 69 } 70 mImageView1.setOnClickListener(new View.OnClickListener() { 71 @Override 72 public void onClick(View v) { 73 startAlbumActivity(REQUEST_CODE1); 74 } 75 }); 76 mImageView2.setOnClickListener(new View.OnClickListener() { 77 @Override 78 public void onClick(View v) { 79 startAlbumActivity(REQUEST_CODE2); 80 } 81 }); 82 mCompareBtn.setOnClickListener(new View.OnClickListener() { 83 @Override 84 public void onClick(View v) { 85 startCompare(); 86 } 87 }); 88 } 89 90 private void startCompare() { 91 if ("".equals(mImgBase641) || mImgBase641 == null || "".equals(mImgBase642) || mImgBase642 == null) { 92 Toast.makeText(this, "请选择图片再比对", Toast.LENGTH_SHORT).show(); 93 return; 94 } 95 mResultText.setText("比对中..."); 96 new Thread(new Runnable() { 97 @Override 98 public void run() { 99 Log.i(TAG, "run() called"); 100 CommonOperate commonOperate = new CommonOperate(key, secret, false); 101 try{ 102 Response compare = commonOperate.compare(null, null, null, mImgBase641, 103 null, null, null, mImgBase642); 104 String res = new String(compare.getContent()); 105 Message msg = new Message(); 106 msg.what = i; 107 msg.obj = res; 108 handler.sendMessage(msg); 109 }catch (Exception e){ 110 Log.i(TAG, "startCompare: " +e.toString()); 111 } 112 } 113 }).start(); 114 } 115 116 private void startAlbumActivity(int requestCode) { 117 Intent intent = new Intent(); 118 intent.setType("image/*"); 119 intent.setAction(Intent.ACTION_GET_CONTENT); 120 startActivityForResult(intent, requestCode); 121 } 122 123 @Override 124 protected void onActivityResult(int requestCode, int resultCode, Intent data) { 125 if (data == null) 126 return; 127 Uri uri = data.getData(); 128 Log.e("uri", uri.toString()); 129 ContentResolver cr = this.getContentResolver(); 130 Bitmap bitmap = null; 131 try { 132 bitmap = BitmapFactory.decodeStream(cr.openInputStream(uri)); 133 /* 将Bitmap设定到ImageView */ 134 } catch (FileNotFoundException e) { 135 Log.e("Exception", e.getMessage(), e); 136 } 137 if (resultCode == RESULT_OK && requestCode == REQUEST_CODE1) { 138 mImageView1.setImageBitmap(bitmap); 139 mImgBase641 = bitmapToBase64(bitmap); 140 } else if (resultCode == RESULT_OK && requestCode == REQUEST_CODE2) { 141 mImageView2.setImageBitmap(bitmap); 142 mImgBase642 = bitmapToBase64(bitmap); 143 } 144 super.onActivityResult(requestCode, resultCode, data); 145 } 146 147 private String bitmapToBase64(Bitmap bitmap) { 148 ByteArrayOutputStream bStream = new ByteArrayOutputStream(); 149 bitmap.compress(Bitmap.CompressFormat.JPEG, 80, bStream); 150 return Base64.encodeToString(bStream.toByteArray(), 0); 151 } 152 }
代码中
key 和 secret 请自行注册，填入
项目源码地址：https://download.csdn.net/download/qq_36726507/10290076