Google Vision OCR 多文本检测

Question

我正在尝试使用 google 云视觉进行多语言文本检测。但我有一个问题。 如果我发送请求文本检测 api 端点这个 url;

https://vision.googleapis.com/v1/images:annotate?key=XxxXX

和这个 body;

{
  "requests": [
    {
      "image": {
        "source": {
          "imageUri": "image_url"
        }
      },
      "features": [
        {
          "type": "DOCUMENT_TEXT_DETECTION",
          "maxResults": 1
        }
      ],
      "ImageContext": {
        "languageHints": [
          "tr", "en"
        ]
      }
    }
  ]
}

我收到此错误代码；

{
"error": {
    "code": 400,
    "message": "Invalid JSON payload received. Unknown name \"image_context\" at 'requests[0]': Cannot find field.",
    "status": "INVALID_ARGUMENT",
    "details": [
        {
            "@type": "type.googleapis.com/google.rpc.BadRequest",
            "fieldViolations": [
                {
                    "field": "requests[0]",
                    "description": "Invalid JSON payload received. Unknown name \"image_context\" at 'requests[0]': Cannot find field."
                }
            ]
        }
    ]
}

}

有什么问题？

Answer 1

问题是字段"ImageContext"，应该是"imageContext"小写"i"。