基于虹软人脸识别Demo android人脸识别

落日映苍穹つ 2022-10-02 00:48 303阅读 0赞

2019独角兽企业重金招聘Python工程师标准>>> hot3.png

参加一个比赛，指定用虹软的人脸识别功能，奈何虹软人脸识别要自己建人脸库，不然就只能离线用，总不能装个样子，简单看了下虹软Demo，下面决定用这种简单方法实现在线人脸识别：

  1. Android端(虹软Demo)取出人脸信息和姓名，人脸信息写入.data文件，存入手机本地------>取出文件上传至Python Djano后台，后台把文件保
  2. 存在工程下并把路径存入数据库------>Android端访问后台接口，遍历所有数据库中文件路径然后作为参数再次访问后台，得到所有人脸信息
  3. 文件和姓名，使用识别功能时，就可以开始和所有人脸信息比对，得到效果
  4. Django 后台代码：

在工程下新建一个文件夹uploads,用来存放人脸数据.data文件

为简单实现，在setting.py中注释

#‘django.middleware.csrf.CsrfViewMiddleware’, 不然post请求被拦截，认真做工程不建议这样做 app.urls:

  1. from django.conf.urls import url, include
  2. from . import views
  4. urlpatterns = [
  5.     url(r'^posts',views.posttest),
  6.     url(r'^getallface',views.getface),
  7.     url(r'^filedown',views.file_download),
  8. ]
  9. views.py
  10. #coding:utf-8
  11. import json
  12. from imp import reload
  13. import sys
  14. import os
  15. from django.http import HttpResponse, HttpResponseRedirect, StreamingHttpResponse
  16. from django.shortcuts import render, render_to_response
  17. from django.template import RequestContext
  18. from faceproject.settings import BASE_DIR, MEDIA_ROOT
  19. reload(sys)
  20. from faceapp.models import face, Faceinfos, FaceinfoForm
  23. def getface(request):
  24.     if request.method=='GET':
  25.         WbAgreementModel = Faceinfos.objects.all()
  26.         cflist = []
  27.         cfdata = {}
  28.         cfdata["coding"] = 1
  29.         cfdata['message'] = 'success'
  30.         for wam in WbAgreementModel:
  31.             wlist = {}
  32.             wlist['name'] = wam.username
  33.             wlist['faceinfo']=wam.fileinfo
  34.             cflist.append(wlist)
  35.         cfdata['data'] = cflist
  36.         return HttpResponse(json.dumps(cfdata, ensure_ascii=False), content_type="application/json")
  38. def posttest(request):
  39.     if request.method=='POST':
  40.         files=request.FILES['fileinfo']
  41.         if not files:
  42.             return HttpResponse("no files for upload!")
  43.         Faceinfos(
  44.             username=request.POST['username'],
  45.             fileinfo=MEDIA_ROOT+'/'+files.name
  46.         ).save()
  47.         f = open(os.path.join('uploads', files.name), 'wb')
  48.         for line in files.chunks():
  49.             f.write(line)
  50.             f.close()
  51.     return HttpResponseRedirect('/face/')
  53. def file_download(request):
  54.     global dirs
  55.     if request.method=='GET':
  56.         dirs=request.GET['dirs']
  57.     def file_iterator(file_name, chunk_size=512):
  58.         with open(file_name) as f:
  59.             while True:
  60.                 c = f.read(chunk_size)
  61.                 if c:
  62.                     yield c
  63.                 else:
  64.                     break
  66.     the_file_name = dirs
  67.     response = StreamingHttpResponse(file_iterator(the_file_name))
  68.     return response

Android代码，使用Okhttp进行网络连接

网络访问类：

  1. public class HttpUtil {
  2.     public static void sendOkHttpRequestPost(String address, RequestBody requestBody, okhttp3.Callback callback) {
  3.         OkHttpClient client = new OkHttpClient();
  4.         Request request = new Request.Builder()
  5.                 .url(address)
  6.                 .post(requestBody)
  7.                 .build();
  8.         client.newCall(request).enqueue(callback);
  9.     }
  11.     public static void sendOkHttpRequestGET(String address, okhttp3.Callback callback) {
  12.         OkHttpClient client = new OkHttpClient();
  13.         Request request = new Request.Builder()
  14.                 .url(address)
  15.                 .build();
  16.         client.newCall(request).enqueue(callback);
  17.     }
  19. }
  20. public class downloadf {
  21.         private static downloadf downloadUtil;
  22.         private final OkHttpClient okHttpClient;
  23.         public static downloadf get() {
  24.             if (downloadUtil == null) {
  25.                 downloadUtil = new downloadf();
  26.             }
  27.             return downloadUtil;
  28.         }
  29.         private downloadf() {
  30.             okHttpClient = new OkHttpClient();
  31.         }
  32.         /**
  33.          * @param url 下载连接
  34.          * @param saveDir 储存下载文件的SDCard目录
  35.          * @param listener 下载监听
  36.          */
  37.         public void download(final String url, final String saveDir, final OnDownloadListener listener) {
  38.             Request request = new Request.Builder().url(url).build();
  39.             okHttpClient.newCall(request).enqueue(new Callback() {
  40.                 @Override
  41.                 public void onFailure(Call call, IOException e) {
  42.                     // 下载失败
  43.                     listener.onDownloadFailed();
  44.                 }
  45.                 @Override
  46.                 public void onResponse(Call call, Response response) throws IOException {
  47.                     InputStream is = null;
  48.                     byte[] buf = new byte[2048];
  49.                     int len = 0;
  50.                     FileOutputStream fos = null;
  51.                     // 储存下载文件的目录
  52.                     String savePath = isExistDir(saveDir);
  53.                     try {
  54.                         is = response.body().byteStream();
  55.                         long total = response.body().contentLength();
  56.                         File file = new File(savePath, getNameFromUrl(url));
  57.                         fos = new FileOutputStream(file);
  58.                         long sum = 0;
  59.                         while ((len = is.read(buf)) != -1) {
  60.                             fos.write(buf, 0, len);
  61.                             sum += len;
  62.                             int progress = (int) (sum * 1.0f / total * 100);
  63.                             // 下载中
  64.                             listener.onDownloading(progress);
  65.                         }
  66.                         fos.flush();
  67.                         // 下载完成
  68.                         listener.onDownloadSuccess();
  69.                     } catch (Exception e) {
  70.                         listener.onDownloadFailed();
  71.                     } finally {
  72.                         try {
  73.                             if (is != null)
  74.                                 is.close();
  75.                         } catch (IOException e) {
  76.                         }
  77.                         try {
  78.                             if (fos != null)
  79.                                 fos.close();
  80.                         } catch (IOException e) {
  81.                         }
  82.                     }
  83.                 }
  84.             });
  85.         }
  87.         /**
  88.          * @param saveDir
  89.          * @return
  90.          * @throws IOException
  91.          * 判断下载目录是否存在
  92.          */
  93.         private String isExistDir(String saveDir) throws IOException {
  94.             // 下载位置
  95.             File downloadFile = new File(Environment.getExternalStorageDirectory(), saveDir);
  96.             if (!downloadFile.mkdirs()) {
  97.                 downloadFile.createNewFile();
  98.             }
  99.             String savePath = downloadFile.getAbsolutePath();
  100.             return savePath;
  101.         }
  103.         /**
  104.          * @param url
  105.          * @return
  106.          * 从下载连接中解析出文件名
  107.          */
  108.         @NonNull
  109.         private String getNameFromUrl(String url) {
  110.             return url.substring(url.lastIndexOf("/") + 1);
  111.         }
  113.         public interface OnDownloadListener {
  114.             /**
  115.              * 下载成功
  116.              */
  117.             void onDownloadSuccess();
  119.             /**
  120.              * @param progress
  121.              * 下载进度
  122.              */
  123.             void onDownloading(int progress);
  125.             /**
  126.              * 下载失败
  127.              */
  128.             void onDownloadFailed();
  129.         }
  130.     }

使用：

  1. MediaType type = MediaType.parse("application/octet-stream");//"text/xml;charset=utf-8"
  2. File file = new File(mDBPath +"/"+name+".data");
  3.             File file1=new File(mDBPath+"/face.txt");
  4. RequestBody fileBody = RequestBody.create(type, file);
  5. RequestBody fileBody1 = RequestBody.create(type, file1);
  6. RequestBody requestBody1 = new MultipartBody.Builder()
  7.       .setType(MultipartBody.FORM)
  8.       .addFormDataPart("username",name)
  9.       .addFormDataPart("fileinfo",name+".data",fileBody)
  10.       .build();
  12. HttpUtil.sendOkHttpRequestPost("http://120.79.51.57:8000/face/posts", requestBody1, new Callback() {
  13.    @Override
  14.    public void onFailure(Call call, IOException e) {
  15.       Log.v("oetrihgdf","失败");
  16.    }
  17.    @Override
  18.    public void onResponse(Call call, Response response) throws IOException {
  19.       Log.v("oifdhdfg","成功");
  21.    }
  22. });
  24. HttpUtil.sendOkHttpRequestGET("http://120.79.51.57:8000/face/getallface", new Callback() {
  25.     @Override
  26.     public void onFailure(Call call, IOException e) {
  27.     }
  29.     @Override
  30.     public void onResponse(Call call, Response response) throws IOException {
  31.         final String responsedata=response.body().string();
  32.         runOnUiThread(new Runnable() {
  33.             @Override
  34.             public void run() {
  35.                 Gson gson=new Gson();
  36.                 Facelist facelist= gson.fromJson(responsedata,new TypeToken<facelist>(){}.getType());
  37.                 faces.addAll(facelist.getData());
  38.                 Log.v("faceilist",faces.get(0).getFaceinfo());
  39.                 for (Face face:faces){
  40.                     Log.v("orihgdofg",face.getFaceinfo());
  41.                     downloadf.get().download("http://120.79.51.57:8000/face/filedown?"+"dir="+face.getFaceinfo(), getExternalCacheDir().getPath(), new downloadf.OnDownloadListener() {
  42.                         @Override
  43.                         public void onDownloadSuccess() {
  44.                             Log.v("jmhfgh","下载完成");
  45.                             //Utils.showToast(MainActivity.this, "下载完成");
  46.                         }
  47.                         @Override
  48.                         public void onDownloading(int progress) {
  49.                             // progressBar.setProgress(progress);
  50.                         }
  51.                         @Override
  52.                         public void onDownloadFailed() {
  53.                             Log.v("jmhfgh","下载失败");
  54.                             // Utils.showToast(MainActivity.this, "下失败载失败");
  55.                         }
  56.                     });
  57.                     FileInputStream fs = null;
  58.                     try {
  59.                         fs = new FileInputStream(getExternalCacheDir().getPath()+"/"+face.getName()+".data");
  60.                         ExtInputStream bos = new ExtInputStream(fs);
  61.                         //load version
  62.                         byte[] version_saved = bos.readBytes();
  63.                         FaceDB.FaceRegist frface = new FaceDB.FaceRegist(face.getName());
  64.                         AFR_FSDKFace fsdkFace = new AFR_FSDKFace(version_saved);
  65.                         frface.mFaceList.add(fsdkFace);
  66.                         mResgist.add(frface);
  67.                     } catch (FileNotFoundException e) {
  68.                         e.printStackTrace();
  69.                     } catch (IOException e) {
  70.                         e.printStackTrace();
  71.                     }
  72.                 }
  73.             }
  74.         });
  76.     }
  77. });

最后是SDK下载地址：https://ai.arcsoft.com.cn/ucenter/user/reg?utm_source=csdn1&utm_medium=referral

转载于:https://my.oschina.net/u/3970172/blog/3052166

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