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阿里云人脸搜索最佳实践

发布时间:2021-12-02 点击数:119

Step By Step

1、pom.xml
<dependencies>
        <!--添加oss相关依赖--> <dependency> <groupId>com.aliyun.oss</groupId> <artifactId>aliyun-sdk-oss</artifactId> <version>3.10.2</version> </dependency> <!--java核心库--> <dependency> <groupId>com.aliyun</groupId> <artifactId>aliyun-java-sdk-core</artifactId> <version>4.4.8</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.52</version> </dependency> <!-- 人脸识别相关API --> <dependency> <groupId>com.aliyun</groupId> <artifactId>aliyun-java-sdk-facebody</artifactId> <version>1.0.8</version> </dependency> </dependencies>
2、完整的Java Code Sample
import com.aliyun.oss.OSS; import com.aliyun.oss.OSSClientBuilder; import com.aliyun.oss.model.CannedAccessControlList; import com.aliyun.oss.model.ObjectMetadata; import com.aliyun.oss.model.PutObjectRequest; import com.aliyuncs.DefaultAcsClient; import com.aliyuncs.IAcsClient; import com.aliyuncs.exceptions.ClientException; import com.aliyuncs.exceptions.ServerException; import com.aliyuncs.profile.DefaultProfile; import com.google.gson.Gson; import com.aliyuncs.facebody.model.v20191230.*; import java.io.File;

public class SearchFaceDemo { // yourEndpoint填写Bucket所在地域对应的Endpoint。viapi绝大部分api目前仅支持上海区域oss,所以这里需要创建上海区域bucket,Endpoint填写为https://oss-cn-shanghai.aliyuncs.com。 static String ossEndpoint = "https://oss-cn-shanghai.aliyuncs.com"; static String bucketName = "<oss bucket>"; static String ossDir = "facepics"; // 在oss bucket下面手动创建的文件夹 // 阿里云账号AccessKey拥有所有API的访问权限,风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维,请登录RAM控制台创建RAM用户。 static String accessKeyId = "<ak>"; static String accessKeySecret = "<sk>"; // 创建OSSClient实例。 static OSS ossClient = new OSSClientBuilder().build(ossEndpoint, accessKeyId, accessKeySecret);

    private static DefaultProfile profile = DefaultProfile.getProfile("cn-shanghai", accessKeyId, accessKeySecret);
    private static IAcsClient client = new DefaultAcsClient(profile);

    public static void main(String[] args) { // 1、人脸查找数据准备 String dbName = "group1"; String wangfei1 = "C:\\Users\\Administrator\\Desktop\\新建文件夹\\face1.jpg"; String wangfei2 = "C:\\Users\\Administrator\\Desktop\\新建文件夹\\face2.jpg"; String jingtian1 = "C:\\Users\\Administrator\\Desktop\\新建文件夹\\jingtian1.jpeg"; String jingtian2 = "C:\\Users\\Administrator\\Desktop\\新建文件夹\\jingtian2.jpeg"; // 2、创建FaceDB //        createFaceDbRequest(dbName); // 3、添加人脸样本 //        String entityId1 = "wangfei"; //        String entityId2 = "jingtian"; // //        addFaceEntity(dbName, entityId1); //        addFaceEntity(dbName, entityId2); // 4、为样本添加人脸图片,注意本部分将图片url地址添加到:ExtraData参数 //        addFace(dbName,entityId1,uploadPicGetUrl(wangfei1)); //        addFace(dbName,entityId1,uploadPicGetUrl(wangfei2)); //        addFace(dbName,entityId2,uploadPicGetUrl(jingtian1)); //        addFace(dbName,entityId2,uploadPicGetUrl(jingtian2)); // 5、查询目前人脸库的样本情况 //        listFaceEntities(dbName, 0); // 6、人脸搜索(人脸搜索功能可以根据输入图片,在数据库中搜索并返回相似的人脸图片数据。) searchFace(dbName,uploadPicGetUrl(wangfei1),2);

    } /**
     * 向oss上传文件,返回公共可读的oss 图片地址
     * @param filePath  图片本地路径
     * @return oss url
     */ public static String uploadPicGetUrl(String filePath)
    { // 创建PutObjectRequest对象。 // 依次填写Bucket名称(例如examplebucket)、Object完整路径(例如exampledir/exampleobject.txt)和本地文件的完整路径。Object完整路径中不能包含Bucket名称。 // 如果未指定本地路径,则默认从示例程序所属项目对应本地路径中上传文件,这里在ossbucket下面创建目录facepics用于存储上传的图片 File file = new File(filePath);
        PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, ossDir+"/" + file.getName(), new File(filePath)); // 如果需要上传时设置存储类型和访问权限,请参考以下示例代码。 ObjectMetadata metadata = new ObjectMetadata(); // metadata.setHeader(OSSHeaders.OSS_STORAGE_CLASS, StorageClass.Standard.toString()); metadata.setObjectAcl(CannedAccessControlList.PublicRead); //为了方便获取的文件的公网读路径,这里设置文件的访问权限为公共读 putObjectRequest.setMetadata(metadata); // 上传文件。 ossClient.putObject(putObjectRequest); return "https://" + bucketName + ".oss-cn-shanghai.aliyuncs.com" + "/"+ossDir+"/" + file.getName();
    } /**
     * 创建人脸数据库
     * @param dbName 数据库名称
     */ private static void createFaceDbRequest(String dbName)
    {
        CreateFaceDbRequest createFaceDbRequest = new CreateFaceDbRequest();
        createFaceDbRequest.setName(dbName); try {
            CreateFaceDbResponse response = client.getAcsResponse(createFaceDbRequest);
            System.out.println("创建人脸数据库:");
            System.out.println(new Gson().toJson(response));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 查看数据库列表
     */ private static void listFaceDbs()
    {
        ListFaceDbsRequest listFaceDbsRequest = new ListFaceDbsRequest(); try {
            ListFaceDbsResponse response = client.getAcsResponse(listFaceDbsRequest);
            System.out.println("查看数据库列表: ");
            System.out.println(new Gson().toJson(response));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 添加人脸样本
     * @param dbName 数据库名称
     * @param entityId 实体ID
     */ private static void addFaceEntity(String dbName, String entityId)
    {
        AddFaceEntityRequest addFaceEntityRequest = new AddFaceEntityRequest();
        addFaceEntityRequest.setDbName(dbName);
        addFaceEntityRequest.setEntityId(entityId); try{
            AddFaceEntityResponse addFaceEntityResponse = client.getAcsResponse(addFaceEntityRequest);
            System.out.println("添加人脸样本:");
            System.out.println(new Gson().toJson(addFaceEntityResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 查询人脸样本
     * @param dbName 数据库名称
     * @param entityId 实体ID
     */ private static void getFaceEntity(String dbName, String entityId)
    {
        GetFaceEntityRequest getFaceEntityRequest = new GetFaceEntityRequest();
        getFaceEntityRequest.setDbName(dbName);
        getFaceEntityRequest.setEntityId(entityId); try{
            GetFaceEntityResponse getFaceEntityResponse = client.getAcsResponse(getFaceEntityRequest);
            System.out.println("查询人脸样本:");
            System.out.println(new Gson().toJson(getFaceEntityResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 查询人脸样本列表
     * @param dbName 数据库名称
     * @param Offset 起始记录
     */ private static void listFaceEntities(String dbName, Integer Offset)
    {
        ListFaceEntitiesRequest listFaceEntitiesRequest = new ListFaceEntitiesRequest();
        listFaceEntitiesRequest.setDbName(dbName);
        listFaceEntitiesRequest.setOffset(Offset); try{
            ListFaceEntitiesResponse listFaceEntitiesResponse = client.getAcsResponse(listFaceEntitiesRequest);
            System.out.println("查询人脸样本列表:");
            System.out.println(new Gson().toJson(listFaceEntitiesResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 更新人脸样本
     * @param dbName 数据库名称
     * @param entityId 实体ID
     * @param labels 标签名称
     */ private static void updateFaceEntity(String dbName, String entityId, String labels)
    {
        UpdateFaceEntityRequest updateFaceEntityRequest = new UpdateFaceEntityRequest();
        updateFaceEntityRequest.setDbName(dbName);
        updateFaceEntityRequest.setEntityId(entityId);
        updateFaceEntityRequest.setLabels(labels); try{
            UpdateFaceEntityResponse updateFaceEntityResponse = client.getAcsResponse(updateFaceEntityRequest);
            System.out.println("更新人脸样本:");
            System.out.println(new Gson().toJson(updateFaceEntityResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 删除人脸样本
     * @param dbName 数据库名称
     * @param entityId 实体ID
     */ private static void deleteFaceEntity(String dbName, String entityId)
    {
        DeleteFaceEntityRequest deleteFaceEntityRequest = new DeleteFaceEntityRequest();
        deleteFaceEntityRequest.setDbName(dbName);
        deleteFaceEntityRequest.setEntityId(entityId); try{
            DeleteFaceEntityResponse deleteFaceEntityResponse = client.getAcsResponse(deleteFaceEntityRequest);
            System.out.println("删除人脸样本:");
            System.out.println(new Gson().toJson(deleteFaceEntityResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 添加人脸数据
     * @param dbName 数据库名称
     * @param entityId 实体ID
     * @param imageUrl 人脸图片地址,必须是同Region的OSS的图片地址。人脸必须是正面无遮挡单人人脸。
     */ private static void addFace(String dbName, String entityId, String imageUrl)
    {
        AddFaceRequest addFaceRequest = new AddFaceRequest();
        addFaceRequest.setDbName(dbName);
        addFaceRequest.setEntityId(entityId);
        addFaceRequest.setImageUrl(imageUrl);
        addFaceRequest.setExtraData(imageUrl);// 注意,此处将图片地址保持到ExtraData中,为后续查询提供方便 try{
            AddFaceResponse addFaceResponse = client.getAcsResponse(addFaceRequest);
            System.out.println("添加人脸数据:");
            System.out.println(new Gson().toJson(addFaceResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 搜索人脸
     * @param dbName 数据库名称
     * @param imageUrl 图片URL地址。必须是同Region的OSS地址。
     */ private static void searchFace(String dbName, String imageUrl, Integer limit)
    {
        SearchFaceRequest searchFaceRequest = new SearchFaceRequest();
        searchFaceRequest.setDbName(dbName);
        searchFaceRequest.setImageUrl(imageUrl);
        searchFaceRequest.setLimit(limit); try{
            SearchFaceResponse searchFaceResponse = client.getAcsResponse(searchFaceRequest);
            System.out.println("搜索人脸:");
            System.out.println(new Gson().toJson(searchFaceResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 删除数据库
     * @param dbName 数据库名称
     */ private static void deleteFace(String dbName, String faceId)
    {
        DeleteFaceRequest deleteFaceRequest = new DeleteFaceRequest();
        deleteFaceRequest.setDbName(dbName);
        deleteFaceRequest.setFaceId(faceId); try{
            DeleteFaceResponse deleteFaceResponse = client.getAcsResponse(deleteFaceRequest);
            System.out.println("删除人脸:");
            System.out.println(new Gson().toJson(deleteFaceResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 删除数据库
     * @param dbName 数据库名称
     */ private static void deleteFaceDb(String dbName)
    {
        DeleteFaceDbRequest deleteFaceDbRequest = new DeleteFaceDbRequest();
        deleteFaceDbRequest.setName(dbName); try{
            DeleteFaceDbResponse deleteFaceDbResponse = client.getAcsResponse(deleteFaceDbRequest);
            System.out.println("删除数据库:");
            System.out.println(new Gson().toJson(deleteFaceDbResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    } /**
     * 人脸对比
     * @param imageURLA 待对比图片URL地址A
     * @param imageURLB 待对比图片URL地址B
     */ private static void compareFace(String imageURLA, String imageURLB)
    {
        CompareFaceRequest compareFaceRequest = new CompareFaceRequest();
        compareFaceRequest.setImageURLA(imageURLA);
        compareFaceRequest.setImageURLB(imageURLB); try{
            CompareFaceResponse compareFaceResponse = client.getAcsResponse(compareFaceRequest);
            System.out.println("人脸对比:");
            System.out.println(new Gson().toJson(compareFaceResponse));
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (ClientException e) {
            System.out.println("ErrCode:" + e.getErrCode());
            System.out.println("ErrMsg:" + e.getErrMsg());
            System.out.println("RequestId:" + e.getRequestId());
        }
    }
}
3、查询结果
extraData对应的值即为对应样本人脸的原始图片地址。
搜索人脸:
{"requestId":"60981448-DC3B-518D-82B1-7**********","data":{"matchList":[{"faceItems":[{"faceId":"9770860","score":1.0,"extraData":"https://taro-shangai.oss-cn-shanghai.aliyuncs.com/facepics/face1.jpg","entityId":"wangfei"},{"faceId":"9770861","score":0.7668418,"extraData":"https://taro-shangai.oss-cn-shanghai.aliyuncs.com/facepics/face2.jpg","entityId":"wangfei"}],"location":{"x":217,"y":110,"width":170,"height":233}}]}}
4、使用说明
如果对1:N人脸查找流程使用有疑问,建议可以重点参考:阿里云视觉智能开放平台--人脸识别使用教程或者人脸搜索教程