135 lines
4.6 KiB
C#
135 lines
4.6 KiB
C#
using System;
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using System.IO;
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using RestSharp; //依赖版本106.15.0 https://www.nuget.org/packages/RestSharp/106.15.0
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using Newtonsoft.Json; //https://www.nuget.org/packages/Newtonsoft.Json
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using System.Web.Http;
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using System.Collections.Generic;
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namespace WebAPI.Controllers.HSSE
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{
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public class ImageRecognitionController : ApiController
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{
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const string API_KEY = "2pHOZ7ff76vYgYoIwQnTIB31";
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const string SECRET_KEY = "8q4Oa8wLi6xorfYQgUlEBqM4OOHqFXL7";
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[HttpPost]
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public Model.ResponeData getImageContent([FromBody] ImageRequest imageRequest)
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{
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var responeData = new Model.ResponeData();
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try
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{
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var client = new RestClient($"https://aip.baidubce.com/rest/2.0/face/v3/detect?access_token={GetAccessToken()}");
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client.Timeout = -1;
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var request = new RestRequest(Method.POST);
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request.AddHeader("Content-Type", "application/json");
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string image = imageRequest.Image;
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var body = $@"{{""image"":""{image}"",""image_type"":""BASE64"",""max_face_num"":30}}";
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request.AddParameter("application/json", body, ParameterType.RequestBody);
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IRestResponse response = client.Execute(request);
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Console.WriteLine(response.Content);
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string json = response.Content;
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var responseData = JsonConvert.DeserializeObject<ResponseData>(json);
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int errorCode = responseData.error_code;
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if (errorCode != 0)
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{
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responeData.message = responseData.error_msg;
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}
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else
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{
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int faceNum = responseData.result.face_num;
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responeData.data = faceNum;
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}
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}
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catch (Exception ex)
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{
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responeData.code = 0;
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}
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return responeData;
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}
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/**
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* 获取文件base64编码
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* @param path 文件路径
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* @return base64编码信息，不带文件头
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*/
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public string GetFileContentAsBase64(string path)
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{
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using (FileStream filestream = new FileStream(path, FileMode.Open))
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{
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byte[] arr = new byte[filestream.Length];
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filestream.Read(arr, 0, (int)filestream.Length);
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string base64 = Convert.ToBase64String(arr);
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return base64;
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}
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}
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/**
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* 使用 AK，SK 生成鉴权签名（Access Token）
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* @return 鉴权签名信息（Access Token）
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*/
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public string GetAccessToken()
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{
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var client = new RestClient($"https://aip.baidubce.com/oauth/2.0/token");
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client.Timeout = -1;
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var request = new RestRequest(Method.POST);
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request.AddParameter("grant_type", "client_credentials");
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request.AddParameter("client_id", API_KEY);
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request.AddParameter("client_secret", SECRET_KEY);
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IRestResponse response = client.Execute(request);
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Console.WriteLine(response.Content);
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var result = JsonConvert.DeserializeObject<dynamic>(response.Content);
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return result.access_token.ToString();
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}
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public class ImageRequest
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{
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public string Image { get; set; }
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}
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public class Location
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{
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public double left { get; set; }
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public double top { get; set; }
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public double width { get; set; }
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public double height { get; set; }
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public double rotation { get; set; }
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}
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public class Angle
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{
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public double yaw { get; set; }
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public double pitch { get; set; }
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public double roll { get; set; }
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}
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public class Face
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{
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public string face_token { get; set; }
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public Location location { get; set; }
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public double face_probability { get; set; }
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public Angle angle { get; set; }
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}
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public class Result
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{
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public int face_num { get; set; }
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public List<Face> face_list { get; set; }
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}
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public class ResponseData
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{
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public int error_code { get; set; }
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public string error_msg { get; set; }
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public long log_id { get; set; }
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public long timestamp { get; set; }
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public int cached { get; set; }
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public Result result { get; set; }
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}
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}
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} |