谷歌视觉连接到 API 没有外部谷歌 DLL

Posted 2023-04-17

【中文标题】谷歌视觉连接到 API 没有外部谷歌 DLL

【英文标题】：Google vision connection to API without external google DLL

【发布时间】：2020-09-09 04:04:50

【问题描述】：

如何在不使用外部dll的情况下连接谷歌云视觉？

【参考方案1】：

首先，您必须生成 JSON 请求，简单示例：

            Request req = new Request();
            req.addFeature("DOCUMENT_TEXT_DETECTION"); //Add here all the feature types
            req.Image.content = Convert.ToBase64String(qq);//qq is a byte[]
            Requests reqList = new Requests(req);
            json = JsonConvert.SerializeObject(reqList);

其次，您需要发布简单的 HTTP 请求：

var httpWebRequest = (HttpWebRequest)WebRequest.Create("https://vision.googleapis.com/v1/images:annotate?key="PLACE_YOURKEY_HERE"");
                httpWebRequest.ContentType = "application/json";
                httpWebRequest.Method = "POST";
                using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
                
                    streamWriter.Write(json);
                

                var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
                using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
                
                    response = streamReader.ReadToEnd();
                

JSON 类的成员（应实现的方法）：

    class Requests

    public List<Request> Request  get; set; 

class Request

    public Image1 Image  get; set; 
    public List<Feature> Features  get; set; 


public class Feature

    public string Type  get; set; 


public class Image1

    public string content  get; set; 

与主题相关的链接

Google Vision API Document_Text_Detection

Feature types

Google vision