人脸识别1：1对比 （一）

本项目采用了eyekey 第三方接口，实现了自选图片人脸识别和 两张图片的1：1对比，可返回比对相似度信息，具体步骤如下：

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

<meta-data android:name="appkey" android:value=""/>
<meta-data android:name="appid" android:value=""/>

本应用采用的eyekey 第三方接口，可自行去注册，以上代码放到配置文件中

三、添加依赖

    compile "com.squareup.retrofit2:retrofit:2.1.0"
    compile "com.squareup.retrofit2:converter-gson:2.1.0"

retrofit使用参见：https://www.jianshu.com/p/308f3c54abdd

 导入sdk,如图放入文件路径下：

四、布局文件

1：1对比

 页面两个ImageView 一个button 一个textView，点击imageView 选择本地图片

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.lifen.facecompareeyekey.MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">

            <ImageView
                android:id="@+id/img1"
                android:layout_width="0dp"
                android:layout_height="180dp"
                android:layout_weight="1"
                android:scaleType="centerCrop"
                android:src="@drawable/head"/>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="VS"
                android:textColor="@android:color/black"
                android:textSize="20dp"/>

            <ImageView
                android:id="@+id/img2"
                android:layout_width="0dp"
                android:layout_height="180dp"
                android:layout_weight="1"
                android:scaleType="centerCrop"
                android:src="@drawable/head"/>

        </LinearLayout>

        <Button
            android:id="@+id/compareBtn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/activity_horizontal_margin"
            android:text="比对"/>

        <TextView
            android:id="@+id/resultBtn"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/activity_horizontal_margin"
            android:background="#eeeeee"
            android:padding="6dp"/>

    </LinearLayout>
</ScrollView>

 五、主界面 activity

本演示仅一个页面，代码如下：

package com.example.lifen.facecompareeyekey;

import android.content.ContentResolver;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Base64;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.lifen.facecompareeyekey.eyekeysdk.api.CheckAPI;
import com.example.lifen.facecompareeyekey.eyekeysdk.entity.FaceAttrs;
import com.example.lifen.facecompareeyekey.eyekeysdk.entity.MatchCompare;

import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

/**
 * eyekey人脸比对示例(matchCompare)
 *
 * @author wangzhi
 */
public class MainActivity extends AppCompatActivity {

  private static final int REQUEST_CODE1 = 11;
  private static final int REQUEST_CODE2 = 12;
  ImageView mImageView1;
  ImageView mImageView2;
  Button mCompareBtn;
  TextView mResultText;
  private String mFaceId1;
  private String mFaceId2;
  private String mImgBase641;
  private String mImgBase642;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // 初始化eyekey接口 （需在AndroidManifest.xml中添加appid和appkey）
    CheckAPI.init(this);

    mImageView1 = (ImageView) findViewById(R.id.img1);
    mImageView2 = (ImageView) findViewById(R.id.img2);
    mCompareBtn = (Button) findViewById(R.id.compareBtn);
    mResultText = (TextView) findViewById(R.id.resultBtn);

    mImageView1.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        startAlbumActivity(REQUEST_CODE1);
      }
    });
    mImageView2.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        startAlbumActivity(REQUEST_CODE2);
      }
    });
    mCompareBtn.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        startCompare();
      }
    });
  }

  private void startCompare() {
    if ("".equals(mImgBase641) || mImgBase641 == null || "".equals(mImgBase642) || mImgBase642 == null) {
      Toast.makeText(this, "请选择图片再比对", Toast.LENGTH_SHORT).show();
      return;
    }
    mResultText.setText("比对中...");
    getFaceId1();
  }

  void getFaceId1() {
    CheckAPI.checkingImageData(mImgBase641, null, null).enqueue(new Callback<FaceAttrs>() {
      @Override
      public void onResponse(Call<FaceAttrs> call, Response<FaceAttrs> response) {
        FaceAttrs faceAttrs = response.body();
        if (faceAttrs != null && "0000".equals(faceAttrs.getRes_code())) {
          mFaceId1 = faceAttrs.getFace().get(0).getFace_id();
          getFaceId2();
        } else {
          mResultText.setText("人脸检测失败...");
        }
      }

      @Override
      public void onFailure(Call<FaceAttrs> call, Throwable t) {
        mResultText.setText("网络出错...");
        Toast.makeText(MainActivity.this, "网络出错", Toast.LENGTH_SHORT).show();
      }
    });
  }

  void getFaceId2() {
    CheckAPI.checkingImageData(mImgBase642, null, null).enqueue(new Callback<FaceAttrs>() {
      @Override
      public void onResponse(Call<FaceAttrs> call, Response<FaceAttrs> response) {
        FaceAttrs faceAttrs = response.body();
        if (faceAttrs != null && "0000".equals(faceAttrs.getRes_code())) {
          mFaceId2 = faceAttrs.getFace().get(0).getFace_id();
          compare();
        } else {
          mResultText.setText("人脸检测失败...");
        }
      }

      @Override
      public void onFailure(Call<FaceAttrs> call, Throwable t) {
        mResultText.setText("网络出错...");
        Toast.makeText(MainActivity.this, "网络出错", Toast.LENGTH_SHORT).show();
      }
    });
  }

  void compare() {
    CheckAPI.matchCompare(mFaceId1, mFaceId2).enqueue(new Callback<MatchCompare>() {
      @Override
      public void onResponse(Call<MatchCompare> call, Response<MatchCompare> response) {
        MatchCompare compare = response.body();
        if (compare != null && "0000".equals(compare.getRes_code())) {
          mResultText.setText(compare.toString());
        } else {
          mResultText.setText("比对失败...");
        }
      }

      @Override
      public void onFailure(Call<MatchCompare> call, Throwable t) {
        mResultText.setText("网络出错...");
        Toast.makeText(MainActivity.this, "网络出错", Toast.LENGTH_SHORT).show();
      }
    });
  }

  private void startAlbumActivity(int requestCode) {
    Intent intent = new Intent();
    intent.setType("image/*");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(intent, requestCode);
  }

  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (data == null)
      return;
    Uri uri = data.getData();
    Log.e("uri", uri.toString());
    ContentResolver cr = this.getContentResolver();
    Bitmap bitmap = null;
    try {
      bitmap = BitmapFactory.decodeStream(cr.openInputStream(uri));
                /* 将Bitmap设定到ImageView */
    } catch (FileNotFoundException e) {
      Log.e("Exception", e.getMessage(), e);
    }
    if (resultCode == RESULT_OK && requestCode == REQUEST_CODE1) {
      mImageView1.setImageBitmap(bitmap);
      mImgBase641 = bitmapToBase64(bitmap);
    } else if (resultCode == RESULT_OK && requestCode == REQUEST_CODE2) {
      mImageView2.setImageBitmap(bitmap);
      mImgBase642 = bitmapToBase64(bitmap);
    }
    super.onActivityResult(requestCode, resultCode, data);
  }

  private String bitmapToBase64(Bitmap bitmap) {
    ByteArrayOutputStream bStream = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 80, bStream);
    return Base64.encodeToString(bStream.toByteArray(), 0);
  }
}

项目地址：https://download.csdn.net/download/qq_36726507/10289440