概述
基于图像或视频输入进行检测，与注册库比对，实现1：N的人脸识别。适用于人脸登录、VIP人脸识别、人脸通关等无需刷卡验证的场景。目前人脸识别1:N功能暂时还处于公测阶段，开通后可以免费测试试用。下面主要演示1:N 服务的开通及Java程序的调用测试。
服务开通
1、点击开通链接开通服务。
2、到费用中心零元支付。
3、登陆控制台查看(公测阶段管理控制台功能还不完善，不过不影响程序的测试调用)。
Java Code Sample
1、pom.xml
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-core</artifactId>
<version>4.1.1</version>
</dependency>2、Code Sample
import com.aliyuncs.CommonRequest;
import com.aliyuncs.CommonResponse;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.http.MethodType;
import com.aliyuncs.profile.DefaultProfile;
public class Demo {
//DefaultProfile.getProfile的参数分别是地域，access_key_id, access_key_secret
public static DefaultProfile profile = DefaultProfile.getProfile("cn-shanghai", "******", "******");
public static DefaultAcsClient client = new DefaultAcsClient(profile);
public static void main(String[] args) throws ClientException {
String groupName = "default";
String person = "LiuYifei";
String image_1 = "photo1";
String image_2 = "photo2";
String imageUrl_1 = "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1559655604341&di=3d6995f6dee1c4795d1827e754a00452&imgtype=0&src=http%3A%2F%2Fimg0.ph.126.net%2F90u9atgu46nnziAm1NMAGw%3D%3D%2F6631853916514183512.jpg";
String imageUrl_2 = "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1559655604338&di=ee3d8fb39f6e14a21852a4ac3f2c5a14&imgtype=0&src=http%3A%2F%2Fc4.haibao.cn%2Fimg%2F600_0_100_0%2F1473652712.0005%2F87c7805c10e60e9a6db94f86d6014de8.jpg";
String recognizeFaceImageUrl = "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1559655604335&di=7b540d703955aed6d235752589aee34a&imgtype=0&src=http%3A%2F%2Fphotocdn.sohu.com%2F20140317%2FImg396736687.jpg";
//添加入两张人脸
AddFace(groupName,person,image_1,imageUrl_1);
AddFace(groupName,person,image_2,imageUrl_2);
//列举Group
ListGroup();
//列举Faces
ListFace(groupName);
//人脸查询
RecognizeFace(recognizeFaceImageUrl);
//删除Face
DeleteFace(groupName,person,image_1);
//列举Faces查询删除情况
ListFace(groupName);
}
/**
* AddFace接口用于向人脸库中添加人脸
* @param groupName 添加人脸的分组
* @param person 添加人脸的姓名
* @param image 添加人脸的编号
* @param imageUrl 检测图片的URL
*/
public static void AddFace(String groupName,String person,String image,String imageUrl)
{
CommonRequest request = new CommonRequest();
request.setMethod(MethodType.POST);
request.setDomain("face.cn-shanghai.aliyuncs.com");
request.setVersion("2018-12-03");
request.setAction("AddFace");
request.putBodyParameter("Group", groupName); //添加人脸的分组
request.putBodyParameter("Person", person); //添加人脸的姓名
request.putBodyParameter("Image", image); //添加人脸的编号
request.putBodyParameter("ImageUrl",imageUrl); //检测图片的URL
// request.putBodyParameter("Content", "/9j/4AAQSkZJRgABA..."); //检测图片的内容，Base64编码
CommonResponse response = null;
try {
response = client.getCommonResponse(request);
} catch (ClientException e) {
e.printStackTrace();
}
System.out.println(response.getData());
}
/**
* DeleteFace接口用于从人脸库中删除人脸
* @param groupName 添加人脸的分组
* @param person 添加人脸的姓名
* @param image 添加人脸的编号
* @throws ClientException
*/
public static void DeleteFace(String groupName,String person,String image) throws ClientException {
CommonRequest request = new CommonRequest();
request.setMethod(MethodType.POST);
request.setDomain("face.cn-shanghai.aliyuncs.com");
request.setVersion("2018-12-03");
request.setAction("DeleteFace");
request.putBodyParameter("Group", groupName);
request.putBodyParameter("Person", person);
request.putBodyParameter("Image", image);
CommonResponse response = client.getCommonResponse(request);
System.out.println(response.getData());
}
/**
* ListFace接口用于列举注册库中的人脸
* @param groupName 需要查询的库
* @throws ClientException
*/
public static void ListFace(String groupName) throws ClientException {
CommonRequest request = new CommonRequest();
request.setMethod(MethodType.POST);
request.setDomain("face.cn-shanghai.aliyuncs.com");
request.setVersion("2018-12-03");
request.setAction("ListFace");
request.putBodyParameter("Group", groupName); //列举的人脸组
CommonResponse response = client.getCommonResponse(request);
System.out.println(response.getData());
}
/**
* ListGroup接口用于列举人脸组
* @throws ClientException
*/
public static void ListGroup() throws ClientException {
CommonRequest request = new CommonRequest();
request.setMethod(MethodType.POST);
request.setDomain("face.cn-shanghai.aliyuncs.com");
request.setVersion("2018-12-03");
request.setAction("ListGroup");
CommonResponse response = client.getCommonResponse(request);
System.out.println(response.getData());
}
/**
* RecognizeFace接口用于查找注册库中的人脸
* @param recognizeFaceImageUrl 需要查询的人类图片URL
* @throws ClientException
*/
public static void RecognizeFace(String recognizeFaceImageUrl) throws ClientException {
CommonRequest request = new CommonRequest();
request.setMethod(MethodType.POST);
request.setDomain("face.cn-shanghai.aliyuncs.com");
request.setVersion("2018-12-03");
request.setAction("RecognizeFace");
request.putBodyParameter("Group", "default"); //待识别的人脸分组
request.putBodyParameter("ImageUrl", recognizeFaceImageUrl); //检测图片的URL
// request.putBodyParameter("Content", "/9j/4AAQSkZJRgABA..."); //检测图片的内容，Base64编码
CommonResponse response = client.getCommonResponse(request);
System.out.println(response.getData());
}
}3、测试结果
{"Data":"ok","RequestId":"9180EBDF-836E-4C6F-A9A7-FEC32CEB202A","Success":true}
{"Data":"ok","RequestId":"B29A6752-A93D-4DEB-B07F-AEC727C7DB37","Success":true}
{"Data":["default"],"RequestId":"8A6B9AF3-B914-4199-929B-2CF14C8E94F7","Success":true}
{"Data":{"mark":0,"list":[{"person":"LiuYifei","image":"photo1"},{"person":"LiuYifei","image":"photo2"}]},"RequestId":"91D3285D-D2B6-4600-B0C6-6A1649452FDF","Success":true}
{"Data":[{"person":"LiuYifei","score":0.66236943,"image":"photo2","rect":[146,131,132,179]}],"RequestId":"0484F0F4-CD52-42D3-A113-5C7466B24331","Success":true}
{"Data":"ok","RequestId":"BD8BA622-50AD-466D-BDD8-AF3EA7B19E2A","Success":true}
{"Data":{"mark":0,"list":[{"person":"LiuYifei","image":"photo2"}]},"RequestId":"45876486-C29A-4A84-A240-FB90FF3E03B3","Success":true}