Google Vision API

Question

我正在尝试将数据发布到Google Vision API。 屁股我总是得到400响应码-错误的请求。 我还没有想法

我已阅读并尝试使用这些链接：

https://cloud.google.com/vision/docs/requests-and-responses https://cloud.google.com/vision/docs/detecting-text https://developers.google.com/apis-explorer/ ？hl = ru＃p / vision / v1 / vision.images.annotate

我想到了这一点：

这是我要发布的数据：

var dataToSend = {
        "requests": [
           {
               "image": {
                   "content": imageData
               },
               "features": [
                  {
                      "type": "TYPE_UNSPECIFIED",
                      "maxResults": 50
                  },
                  {
                      "type": "LANDMARK_DETECTION",
                      "maxResults": 50
                  },
                  {
                      "type": "FACE_DETECTION",
                      "maxResults": 50
                  },
                  {
                      "type": "LOGO_DETECTION",
                      "maxResults": 50
                  },
                  {
                      "type": "LABEL_DETECTION",
                      "maxResults": 50
                  },
                  {
                      "type": "TEXT_DETECTION",
                      "maxResults": 50
                  },
                  {
                      "type": "SAFE_SEARCH_DETECTION",
                      "maxResults": 50
                  },
                  {
                      "type": "IMAGE_PROPERTIES",
                      "maxResults": 50
                  }
               ]
           }
        ]
    };

这是我的帖子：

$.ajax({
        url: "https://vision.googleapis.com/v1/images:annotate?fields=responses&key={MY CREATED KEY}",
        type: "POST",
        data: dataToSend,
        success: function (reponse) {
            console.log(reponse);
        },
    });

这是来自控制台的数据（ 示例中的内容为空白 （不发布错误的base64））：

这是响应：

{
  "error": {
    "code": 400,
    "message": "Invalid JSON payload received. Unknown name \"requests[0][features][0][type]\": Cannot bind query parameter. Field 'requests[0][features][0][type]' could not be found in request message.\nInvalid JSON payload received. Unknown name \"requests[0][features][0][maxResults]\": Cannot bind query parameter. Field 'requests[0][features][0][maxResults]' could not be found in request message.\nInvalid JSON payload received. Unknown name \"requests[0][image][content]\": Cannot bind query parameter. Field 'requests[0][image][content]' could not be found in request message.",
    "status": "INVALID_ARGUMENT",
    "details": [
      {
        "@type": "type.googleapis.com/google.rpc.BadRequest",
        "fieldViolations": [
          {
            "description": "Invalid JSON payload received. Unknown name \"requests[0][features][0][type]\": Cannot bind query parameter. Field 'requests[0][features][0][type]' could not be found in request message."
          },
          {
            "description": "Invalid JSON payload received. Unknown name \"requests[0][features][0][maxResults]\": Cannot bind query parameter. Field 'requests[0][features][0][maxResults]' could not be found in request message."
          },
          {
            "description": "Invalid JSON payload received. Unknown name \"requests[0][image][content]\": Cannot bind query parameter. Field 'requests[0][image][content]' could not be found in request message."
          }
        ]
      }
    ]
  }
}

我的错在哪里？

Answer 1

所以我发现了问题所在。 我的照片超出了大约4MB的数据大小限制

Answer 2

是的，您还可以缩小现有照片的大小。 为此，您可以使用可用的工具。 它们减少了照片的大小，因此您的视觉api可以给出准确的结果。 我使用过imagix，它可以减小尺寸，也可以提供500 * 500像素大小。

Answer 3

可能需要进行以下处理。

var dataToSend = JSON.stringify（{your json}）;