我正在尝试开发C#Google Vision API函数 .
代码应该编译成dll,它应该运行以执行以下步骤 .
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从图像路径中获取图像 .
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将图像发送到Google vision api
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调用文档文本检测功能
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获取返回值(文本字符串值)
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完成
当我运行dll时,它不断给我一个抛出异常错误 . 我假设问题出在谷歌凭证上,但不确定......
有人可以帮我解决这个问题吗?我甚至不知道var凭证= GoogleCredential.FromFile(Credential_Path);将是调用json文件的正确方法...
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Google.Cloud.Vision.V1;
using Google.Apis.Auth.OAuth2;
using Image = Google.Cloud.Vision.V1.Image;
namespace DLL_TEST_NetFramework4._6._1version
{
public class Class1
{
public string doc_text_dection(string GVA_File_Path, string Credential_Path)
{
var credential = GoogleCredential.FromFile(Credential_Path);
//Load the image file into memory
var image = Image.FromFile(GVA_File_Path);
// Instantiates a client
ImageAnnotatorClient client = ImageAnnotatorClient.Create();
TextAnnotation text = client.DetectDocumentText(image);
//Console.WriteLine($"Text: {text.Text}");
return $"Text: {text.Text}";
//return "test image...";
}
}
}