基於虹軟人臉識別Demo android人臉識別

參加一個比賽，指定用虹軟的人臉識別功能，奈何虹軟人臉識別要本身建人臉庫，否則就只能離線用，總不能裝個樣子，簡單看了下虹軟Demo，下面決定用這種簡單方法實如今線人臉識別：

Android端(虹軟Demo)取出人臉信息和姓名，人臉信息寫入.data文件，存入手機本地------>取出文件上傳至Python Djano後臺，後臺把文件保
存在工程下並把路徑存入數據庫------>Android端訪問後臺接口，遍歷全部數據庫中文件路徑而後做爲參數再次訪問後臺，獲得全部人臉信息
文件和姓名，使用識別功能時，就能夠開始和全部人臉信息比對，獲得效果
Django 後臺代碼：

在工程下新建一個文件夾uploads,用來存放人臉數據.data文件

爲簡單實現，在setting.py中註釋

#'django.middleware.csrf.CsrfViewMiddleware',
否則post請求被攔截，認真作工程不建議這樣作
app.urls:

from django.conf.urls import url, include
from . import views

urlpatterns = [
url(r'^posts',views.posttest),
url(r'^getallface',views.getface),
url(r'^filedown',views.file_download),
]
views.py
#coding:utf-8
import json
from imp import reload
import sys
import os
from django.http import HttpResponse, HttpResponseRedirect, StreamingHttpResponse
from django.shortcuts import render, render_to_response
from django.template import RequestContext
from faceproject.settings import BASE_DIR, MEDIA_ROOT
reload(sys)
from faceapp.models import face, Faceinfos, FaceinfoForm


def getface(request):
if request.method=='GET':
WbAgreementModel = Faceinfos.objects.all()
cflist = []
cfdata = {}
cfdata["coding"] = 1
cfdata['message'] = 'success'
for wam in WbAgreementModel:
wlist = {}
wlist['name'] = wam.username
wlist['faceinfo']=wam.fileinfo
cflist.append(wlist)
cfdata['data'] = cflist
return HttpResponse(json.dumps(cfdata, ensure_ascii=False), content_type="application/json")

def posttest(request):
if request.method=='POST':
files=request.FILES['fileinfo']
if not files:
return HttpResponse("no files for upload!")
Faceinfos(
username=request.POST['username'],
fileinfo=MEDIA_ROOT+'/'+files.name
).save()
f = open(os.path.join('uploads', files.name), 'wb')
for line in files.chunks():
f.write(line)
f.close()
return HttpResponseRedirect('/face/')

def file_download(request):
global dirs
if request.method=='GET':
dirs=request.GET['dirs']
def file_iterator(file_name, chunk_size=512):
with open(file_name) as f:
while True:
c = f.read(chunk_size)
if c:
yield c
else:
break

the_file_name = dirs
response = StreamingHttpResponse(file_iterator(the_file_name))
return response

　　

Android代碼，使用Okhttp進行網絡鏈接

網絡訪問類：

public class HttpUtil {
public static void sendOkHttpRequestPost(String address, RequestBody requestBody, okhttp3.Callback callback) {
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url(address)
.post(requestBody)
.build();
client.newCall(request).enqueue(callback);
}

public static void sendOkHttpRequestGET(String address, okhttp3.Callback callback) {
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url(address)
.build();
client.newCall(request).enqueue(callback);
}

}
public class downloadf {
private static downloadf downloadUtil;
private final OkHttpClient okHttpClient;
public static downloadf get() {
if (downloadUtil == null) {
downloadUtil = new downloadf();
}
return downloadUtil;
}
private downloadf() {
okHttpClient = new OkHttpClient();
}
/**
* @param url 下載鏈接
* @param saveDir 儲存下載文件的SDCard目錄
* @param listener 下載監聽
*/
public void download(final String url, final String saveDir, final OnDownloadListener listener) {
Request request = new Request.Builder().url(url).build();
okHttpClient.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
// 下載失敗
listener.onDownloadFailed();
}
@Override
public void onResponse(Call call, Response response) throws IOException {
InputStream is = null;
byte[] buf = new byte[2048];
int len = 0;
FileOutputStream fos = null;
// 儲存下載文件的目錄
String savePath = isExistDir(saveDir);
try {
is = response.body().byteStream();
long total = response.body().contentLength();
File file = new File(savePath, getNameFromUrl(url));
fos = new FileOutputStream(file);
long sum = 0;
while ((len = is.read(buf)) != -1) {
fos.write(buf, 0, len);
sum += len;
int progress = (int) (sum * 1.0f / total * 100);
// 下載中
listener.onDownloading(progress);
}
fos.flush();
// 下載完成
listener.onDownloadSuccess();
} catch (Exception e) {
listener.onDownloadFailed();
} finally {
try {
if (is != null)
is.close();
} catch (IOException e) {
}
try {
if (fos != null)
fos.close();
} catch (IOException e) {
}
}
}
});
}

/**
* @param saveDir
* @return
* @throws IOException
* 判斷下載目錄是否存在
*/
private String isExistDir(String saveDir) throws IOException {
// 下載位置
File downloadFile = new File(Environment.getExternalStorageDirectory(), saveDir);
if (!downloadFile.mkdirs()) {
downloadFile.createNewFile();
}
String savePath = downloadFile.getAbsolutePath();
return savePath;
}

/**
* @param url
* @return
* 從下載鏈接中解析出文件名
*/
@NonNull
private String getNameFromUrl(String url) {
return url.substring(url.lastIndexOf("/") + 1);
}

public interface OnDownloadListener {
/**
* 下載成功
*/
void onDownloadSuccess();

/**
* @param progress
* 下載進度
*/
void onDownloading(int progress);

/**
* 下載失敗
*/
void onDownloadFailed();
}
}

　　

使用：

MediaType type = MediaType.parse("application/octet-stream");//"text/xml;charset=utf-8"
File file = new File(mDBPath +"/"+name+".data");
File file1=new File(mDBPath+"/face.txt");
RequestBody fileBody = RequestBody.create(type, file);
RequestBody fileBody1 = RequestBody.create(type, file1);
RequestBody requestBody1 = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("username",name)
.addFormDataPart("fileinfo",name+".data",fileBody)
.build();

HttpUtil.sendOkHttpRequestPost("http://120.79.51.57:8000/face/posts", requestBody1, new Callback() {
@Override
public void onFailure(Call call, IOException e) {
Log.v("oetrihgdf","失敗");
}
@Override
public void onResponse(Call call, Response response) throws IOException {
Log.v("oifdhdfg","成功");

}
});

HttpUtil.sendOkHttpRequestGET("http://120.79.51.57:8000/face/getallface", new Callback() {
@Override
public void onFailure(Call call, IOException e) {
}

@Override
public void onResponse(Call call, Response response) throws IOException {
final String responsedata=response.body().string();
runOnUiThread(new Runnable() {
@Override
public void run() {
Gson gson=new Gson();
Facelist facelist= gson.fromJson(responsedata,new TypeToken<Facelist>(){}.getType());
faces.addAll(facelist.getData());
Log.v("faceilist",faces.get(0).getFaceinfo());
for (Face face:faces){
Log.v("orihgdofg",face.getFaceinfo());
downloadf.get().download("http://120.79.51.57:8000/face/filedown?"+"dir="+face.getFaceinfo(), getExternalCacheDir().getPath(), new downloadf.OnDownloadListener() {
@Override
public void onDownloadSuccess() {
Log.v("jmhfgh","下載完成");
//Utils.showToast(MainActivity.this, "下載完成");
}
@Override
public void onDownloading(int progress) {
// progressBar.setProgress(progress);
}
@Override
public void onDownloadFailed() {
Log.v("jmhfgh","下載失敗");
// Utils.showToast(MainActivity.this, "下失敗載失敗");
}
});
FileInputStream fs = null;
try {
fs = new FileInputStream(getExternalCacheDir().getPath()+"/"+face.getName()+".data");
ExtInputStream bos = new ExtInputStream(fs);
//load version
byte[] version_saved = bos.readBytes();
FaceDB.FaceRegist frface = new FaceDB.FaceRegist(face.getName());
AFR_FSDKFace fsdkFace = new AFR_FSDKFace(version_saved);
frface.mFaceList.add(fsdkFace);
mResgist.add(frface);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
});

}
});

　　

最後是SDK下載地址：https://ai.arcsoft.com.cn/ucenter/user/reg?utm_source=csdn1&utm_medium=referral