kz两张人脸图片比对返回比对值

• 本sdk需要联网（仅在初始化阶段，因为需要从服务器获取一个key文件）
• 集成代码

  package demo1.tech.anyun.com.myapplication.mgr;
  
  import android.content.Context;
  import android.os.Environment;
  import android.util.Log;
  
  import com.kz.face.Gnitionface;
  import com.kz.face.stGnFImage;
  import com.kz.face.stGnFaceInfoEx;
  
  import java.io.BufferedInputStream;
  import java.io.BufferedOutputStream;
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  
  import demo1.tech.anyun.com.myapplication.util.FileUtil;
  
  /**
   * 
   * Created by lzw on 2018/5/21. 09:46:13
   * 邮箱：632393724@qq.com
   * All Rights Saved! Chongqing AnYun Tech co. LTD
   */
  public class KzSdk {
      private static final KzSdk ourInstance = new KzSdk();
      private static final String TAG = "KzSdk";
      private IKzSDK mIkzSdk;
      private long m_handle;//句柄
      private boolean isInit = false;
  
      public static KzSdk getInstance() {
          return ourInstance;
      }
  
      private KzSdk() {
      }
  
      public void init(final Context context,IKzSDK iKzSDK){
          this.mIkzSdk = iKzSDK;
          //初始化科技人脸识别SDK 需要将 GnitionfaceBin.bin文件拷贝到设备中，所以开启子线程
          final String dir = Environment.getExternalStorageDirectory()+"/";
  
          final String fileName = "GnitionfaceBin.bin";
          if (!FileUtil.containFile(dir+fileName)){
              Log.i(TAG,"开始拷贝"+fileName);
              new Thread(new Runnable() {
                  @Override
                  public void run() {
                      try {
  
                          InputStream inputStream = context.getResources().getAssets().open(fileName);
  
                          Log.i(TAG,"dir:"+dir);
                          writeToDisk(inputStream, dir, fileName, new IWriteFile() {
                              @Override
                              public void onSucceed() {
                                  Log.i(TAG,"初始化科技人脸SDK");
                                  int ret = Gnitionface.init((dir+fileName).getBytes(),context.getApplicationContext());
                                  Log.i(TAG,"初始化科技人脸SDK"+(ret==0?"成功":"失败")+":"+ret);
  
                                  if (mIkzSdk != null){
                                      mIkzSdk.onResult(ret);
                                  }
                                  isInit = ret==0? true:false;
  
                              }
  
                              @Override
                              public void onFailed(String des) {
                                  if (mIkzSdk != null){
                                      isInit = false;
                                      mIkzSdk.onResult(-100);
                                  }
                              }
                          });
                      } catch (IOException e) {
                          e.printStackTrace();
                      }
  
                  }
              }).start();
  
          }else{
              Log.i(TAG,fileName+"已存在指定的目录，无需再拷贝");
              int ret = Gnitionface.init((dir+fileName).getBytes(),context.getApplicationContext());
              Log.i(TAG,"初始化科技人脸SDK"+(ret==0?"成功":"失败")+":"+ret);
              if (mIkzSdk != null){
                  mIkzSdk.onResult(ret);
              }
              isInit = ret==0? true:false;
          }
  
  
      }
  
  
      public void uninit(){
          Gnitionface.unInit();
      }
  
  
  
  
      private stGnFImage stGnFaceInfo = new stGnFImage();
      private stGnFaceInfoEx[] stGnFaceInfoExes;
  
      /**
       * 有耗时操作请在子线程中调用
       * @param context
       * @param BaseimgData
       * @param imgData
       * @return
       */
      public float matchFaces(Context context,byte[] BaseimgData,byte[] imgData){
          if (isInit){
              Log.i(TAG,"开始调用matchFaces");
  
              byte[] feature1 = new byte[0];
              byte[] feature2 = new byte[0];
  
  
  
              m_handle = Gnitionface.createhandle(context.getApplicationContext());
  
              if (BaseimgData != null && BaseimgData.length>0){
  
  
                  Gnitionface.decodeImage(BaseimgData,BaseimgData.length,stGnFaceInfo);
  
                  stGnFaceInfoExes=Gnitionface.detectFaces(m_handle,stGnFaceInfo,1);
  
                  feature1 =Gnitionface.getfaceFeature(m_handle,stGnFaceInfoExes[0]);
  
              }else{
                  Log.i(TAG,"基准图片不能为空");
                  return 0;
              }
              if (imgData!=null && imgData.length>0){
  
                  Gnitionface.decodeImage(imgData,imgData.length,stGnFaceInfo);
                  stGnFaceInfoExes=Gnitionface.detectFaces(m_handle,stGnFaceInfo,1);
                  feature2 =Gnitionface.getfaceFeature(m_handle,stGnFaceInfoExes[0]);
              }else{
                  Log.i(TAG,"要比对的图片不能为空");
                  return 0;
              }
              float score = Gnitionface.matchFeature(feature1,feature1.length,feature2,feature2.length);
  
  
              releaseRes();
              Log.i(TAG,"score:"+score);
              return score;
          }else{
              Log.i(TAG,"未初始化人脸sdk或初始化不成功");
              return 0;
          }
  
      }
  
      /**
       * 释放句柄以及其他资源
       */
      private void releaseRes(){
          Gnitionface.releaseFaces(m_handle,stGnFaceInfoExes);
          Gnitionface.releaseImage(stGnFaceInfo);
  
          Gnitionface.destroyhandle(m_handle);
      }
  
      /**
       * 写文件到SD卡
       * @param is 输入流
       * @param dir 文件所在目录
       * @param name 文件名
       * @param iWriteFile 写成功与否回调
       * @return
       */
      private File writeToDisk(InputStream is, String dir, String name,IWriteFile iWriteFile) {
          final File file = new File(dir, name);
          BufferedInputStream bis = null;
          FileOutputStream fos = null;
          BufferedOutputStream bos = null;
  
          try {
              bis = new BufferedInputStream(is);
              fos = new FileOutputStream(file);
              bos = new BufferedOutputStream(fos);
  
              byte data[] = new byte[1024 * 4];
  
              int count;
              while ((count = bis.read(data)) != -1) {
                  bos.write(data, 0, count);
              }
  
              bos.flush();
              fos.flush();
              if (iWriteFile != null){
                  iWriteFile.onSucceed();
              }
  
          } catch (IOException e) {
              e.printStackTrace();
              if (iWriteFile != null){
                  iWriteFile.onFailed(e.getMessage());
              }
  
          } finally {
              try {
                  if (bos != null) {
                      bos.close();
                  }
                  if (fos != null) {
                      fos.close();
                  }
                  if (bis != null) {
                      bis.close();
                  }
                  is.close();
              } catch (IOException e) {
                  e.printStackTrace();
              }
          }
  
          return file;
      }
  }
  

   

• 调用示例
  • 　　初始化
  • 代码如下：

            KzSdk.getInstance().init(getApplicationContext(), new IKzSDK() {
                @Override
                public void onResult(int ret) {
    
                            Log.i(TAG,"人脸SDK初始化"+ (ret==0?"成功":"失败"));
                }
            });
    

    　　

  • 两张图片进行比对，返回一个float值（调用示例）
  • 代码如下:

      Bitmap bitmap1 = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory()+"/pic1.jpg");
                    Bitmap bitmap2 = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory()+"/pic2.jpg");
                    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
                    ByteArrayOutputStream byteArrayOutputStream1 = new ByteArrayOutputStream();
                    bitmap1.compress(Bitmap.CompressFormat.JPEG,100,byteArrayOutputStream);
                    final byte[] data1 = byteArrayOutputStream.toByteArray();
    
                    bitmap2.compress(Bitmap.CompressFormat.JPEG,100,byteArrayOutputStream1);
                    final byte[] data2 = byteArrayOutputStream1.toByteArray();
    
                    new AsyncTask<Void, Void, Float>() {
                        @Override
                        protected Float doInBackground(Void... voids) {
                            return  KzSdk.getInstance().matchFaces(MainActivity.this, data1,data2);
                        }
    
                        @Override
                        protected void onPostExecute(Float aFloat) {
                            super.onPostExecute(aFloat);
                            Log.i(TAG,"人脸比对的结果---------"+aFloat);
    
                        }
                    }.execute();
    

    　　

  • 其他代码：

  • public interface IWriteFile {
        void onSucceed();
        void onFailed(String des);
    }
    

    　　

    public interface IKzSDK {
        void onResult(int ret);
    }