Content Moderation:Facial attribute detection

Usage notes

Facial attribute detection can identify various facial characteristics in an image, including face blur, angle, position, smile intensity, and whether the person is wearing glasses, a mask, a hat, has a beard, bangs, or specific hair types. For more information about the parameters, see API operation for facial attribute detection.

You must use the endpoints of the Content Moderation API to call the SDK. For more information about the API endpoints, see Endpoints.

Prerequisites

Submit a facial attribute detection task

using System;
using Newtonsoft.Json;
using Aliyun.Acs.Core;
using Aliyun.Acs.Core.Http;
using Aliyun.Acs.Core.Profile;
using Aliyun.Acs.Green.Model.V20180509;
using System.Collections.Generic;

namespace csharp_sdk_sample
{
    class Program
    {
        static void Main(string[] args)
        {
            /**
             * Common ways to obtain environment variables:
             *     Obtain the AccessKey ID of your RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID");
             *     Obtain the AccessKey secret of your RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
             */
            DefaultProfile profile = DefaultProfile.GetProfile(
                    "cn-shanghai",
                    "We recommend that you obtain the AccessKey ID of your RAM user from environment variables",
                    "We recommend that you obtain the AccessKey secret of your RAM user from environment variables");
            // Note: We recommend that you reuse the instantiated client as much as possible. This improves moderation performance and avoids repeated client connections. 
            DefaultAcsClient client = new DefaultAcsClient(profile);

            DetectFaceRequest request = new DetectFaceRequest();
            request.AcceptFormat = FormatType.JSON;
            request.ContentType = FormatType.JSON;
            request.Method = MethodType.POST;
            request.Encoding = "UTF-8";

            Dictionary<string, object> httpBody = new Dictionary<string, object>();
            httpBody.Add("url", "URL of the face image to be detected");

            request.SetContent(System.Text.Encoding.Default.GetBytes(JsonConvert.SerializeObject(httpBody)), "utf-8", FormatType.JSON);
            try
            {
                DetectFaceResponse response = client.GetAcsResponse(request);
                if (response.HttpResponse.Status != 200)
                {
                    Console.WriteLine("the request failed. status:{0}", response.HttpResponse.Status);
                }
                Console.WriteLine(System.Text.Encoding.Default.GetString(response.HttpResponse.Content));
            }
            catch (Exception ex)
            {
                Console.WriteLine("Failed with error info: {0}", ex.Message);
            }
        }
    }
}