赞
踩
接口介绍:
该请求用于检测和识别图片中的品牌LOGO信息。即对于输入的一张图片(可正常解码,且长宽比适宜),输出图片中LOGO的名称、位置和置信度。当效果欠佳时,可以建立子库(在百度开发者中心控制台创建应用并申请建库)并通过调用logo入口接口完成自定义logo入库,提高识别效果。
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Logo商标识别接口返回数据参数详情:
定义数据结构:
- using System;
-
- /// <summary>
- /// Logo识别响应数据结构
- /// </summary>
- [Serializable]
- public class LogoRecognition
- {
- /// <summary>
- /// 请求标识码,随机数,唯一
- /// </summary>
- public float log_id;
- /// <summary>
- /// 返回结果数目,即:result数组中元素个数
- /// </summary>
- public int result_num;
- /// <summary>
- /// 返回结果数组,每一项为一个识别出的logo
- /// </summary>
- public LogoRecognitionResult[] result;
- }
-
- [Serializable]
- public class LogoRecognitionResult
- {
- /// <summary>
- /// 位置信息
- /// </summary>
- public LogoRecognitionResultLocation location;
- /// <summary>
- /// 识别的品牌名称
- /// </summary>
- public string name;
- /// <summary>
- /// 分类结果置信度(0--1.0)
- /// </summary>
- public float probability;
- /// <summary>
- /// type=0为1千种高优商标识别结果;type=1为2万类logo库的结果;其它type为自定义logo库结果
- /// </summary>
- public int type;
- }
-
- /// <summary>
- /// 位置信息
- /// </summary>
- [Serializable]
- public class LogoRecognitionResultLocation
- {
- /// <summary>
- /// 左起像素位置
- /// </summary>
- public float left;
- /// <summary>
- /// 上起像素位置
- /// </summary>
- public float top;
- /// <summary>
- /// 像素宽
- /// </summary>
- public float width;
- /// <summary>
- /// 像素高
- /// </summary>
- public float height;
- }
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 UnityEngine;
- using Newtonsoft.Json;
- using System.Collections.Generic;
-
- /// <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>
- /// Logo商标识别
- /// </summary>
- /// <param name="bytes">Logo图片字节数据</param>
- /// <param name="customLib">是否只使用自定义logo库的结果,默认false:返回自定义库+默认库的识别结果</param>
- /// <returns></returns>
- public static LogoRecognition Logo(byte[] bytes, bool customLib = false)
- {
- var client = new Baidu.Aip.ImageClassify.ImageClassify(apiKey, secretKey);
- try
- {
- var options = new Dictionary<string, object>
- {
- { "custom_lib", customLib}
- };
- var response = client.LogoSearch(bytes, options);
- LogoRecognition logoRecognition = JsonConvert.DeserializeObject<LogoRecognition>(response.ToString());
- return logoRecognition;
- }
- 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.Logo(File.ReadAllBytes(Application.dataPath + "/Picture.jpg"));
- }
- }
Copyright © 2003-2013 www.wpsshop.cn 版权所有,并保留所有权利。