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接口介绍:
识别超过9千种菜品,支持客户创建属于自己的菜品图库,可准确识别图片中的菜品名称、位置、卡路里信息,并获取百科信息,适用于多种客户识别菜品的业务场景中。
创建应用:
在产品服务中搜索图像识别,创建应用,获取AppID、APIKey、SecretKey信息:
查阅官方文档,以下是菜品识别接口返回数据参数详情:
定义数据结构:
- using System;
-
- /// <summary>
- /// 菜品识别
- /// </summary>
- [Serializable]
- public class DishRecognition
- {
- /// <summary>
- /// 唯一的log id,用于问题定位
- /// </summary>
- public float log_id;
- /// <summary>
- /// 返回结果数目,及result数组中的元素个数
- /// </summary>
- public int result_num;
- /// <summary>
- /// 菜品识别结果数组
- /// </summary>
- public DishRecognitionResult[] result;
- }
-
- /// <summary>
- /// 菜品识别结果
- /// </summary>
- [Serializable]
- public class DishRecognitionResult
- {
- /// <summary>
- /// 菜名
- /// </summary>
- public string name;
- /// <summary>
- /// 卡路里,每100g的卡路里含量
- /// </summary>
- public float calorie;
- /// <summary>
- /// 识别结果中每一行的置信度值,0-1
- /// </summary>
- public float probability;
- /// <summary>
- /// 百科词条
- /// </summary>
- public BaikeInfo baike_info;
- }
-
- [Serializable]
- public class BaikeInfo
- {
- /// <summary>
- /// 对应识别结果百度百科页面链接
- /// </summary>
- public string baike_url;
- /// <summary>
- /// 对应识别结果百科图片链接
- /// </summary>
- public string image_url;
- /// <summary>
- /// 对应识别结果百科内容描述
- /// </summary>
- public string description;
- }
下载C# SDK:
下载完成后将AipSdk.dll动态库导入到Unity中:
以下是调用接口时传入的参数详情:
封装调用函数:
- using System;
- using System.Collections.Generic;
- using UnityEngine;
-
- /// <summary>
- /// 图像识别
- /// </summary>
- public class ImageRecognition
- {
- //以下信息于百度开发者中心控制台创建应用获取
- private const string appID = "";
- private const string apiKey = "";
- private const string secretKey = "";
-
- /// <summary>
- /// 菜品识别
- /// </summary>
- /// <param name="bytes">图片字节数据</param>
- /// <param name="topNum">返回预测得分top结果数,默认为5</param>
- /// <param name="filterThreshold">默认0.95,可以通过该参数调节识别效果,降低非菜识别率.</param>
- /// <param name="baikeNum"> 返回百科信息的结果数,默认不返回</param>
- /// <returns></returns>
- public static DishRecognition Dish(byte[] bytes, int topNum = 5, float filterThreshold = 0.95f, int baikeNum = 0)
- {
- var client = new Baidu.Aip.ImageClassify.ImageClassify(apiKey, secretKey);
- try
- {
- var options = new Dictionary<string, object>
- {
- { "top_num", topNum },
- { "filter_threshold", Mathf.Clamp01(filterThreshold)},
- { "baike_num", baikeNum}
- };
- var response = client.DishDetect(bytes, options);
- DishRecognition dishRecognition = JsonConvert.DeserializeObject<DishRecognition>(response.ToString());
- return dishRecognition;
- }
- catch (Exception error)
- {
- Debug.LogError(error);
- }
- return null;
- }
- }
测试图片:
- using System.IO;
- using UnityEngine;
-
- public class Example : MonoBehaviour
- {
- private void Start()
- {
- ImageRecognition.Dish(File.ReadAllBytes(Application.dataPath + "/Picture.jpg"));
- }
- }
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