Domain name for API request: ocr.tencentcloudapi.com.
This API is used to recognize various types of seals, including invoice seals and finance seals. It is suitable for scenarios such as official document and invoice/ticket OCR.
A maximum of 5 requests can be initiated per second for this API.
The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.
Parameter Name | Required | Type | Description |
---|---|---|---|
Action | Yes | String | Common Params. The value used for this API: SealOCR. |
Version | Yes | String | Common Params. The value used for this API: 2018-11-19. |
Region | No | String | Common Params. This parameter is not required for this API. |
ImageBase64 | No | String | The Base64-encoded value of an image. The image cannot exceed 7 MB after being Base64-encoded. A resolution above 500 x 800 is recommended. PNG, JPG, JPEG, and BMP formats are supported. It is recommended that the card part occupy more than 2/3 area of the image. Either ImageUrl or ImageBase64 of the image must be provided. If both are provided, ImageUrl is used. |
ImageUrl | No | String | The URL of the image. The image cannot exceed 7 MB after being Base64-encoded. A resolution above 500 x 800 is recommended. PNG, JPG, JPEG, and BMP formats are supported. It is recommended that the card part occupy more than 2/3 area of the image. The download time of the image cannot exceed 3s. We recommend that you store the image in Tencent Cloud for higher download speed and stability. |
Parameter Name | Type | Description |
---|---|---|
SealBody | String | Seal content |
Location | Rect | Seal coordinates |
OtherTexts | Array of String | Other text content |
SealInfos | Array of SealInfo | All seal information |
SealShape | String | Seal shape. Valid values: 0: Round 1: Oval 2: Rectangle 3: Diamond 4: Triangle |
RequestId | String | The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem. |
This example shows you how to recognize a seal.
POST / HTTP/1.1
Host: ocr.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: SealOCR
<Common request parameters>
{
"ImageUrl": "https://ocr-demo-1254418846.cos.ap-guangzhou.myqcloud.com/document/SealOCR/SealOCR1.png"
}
{
"Response": {
"Location": {
"Height": 98,
"Width": 98,
"X": 143,
"Y": 78
},
"OtherTexts": [],
"RequestId": "442c7c51-9893-4411-9ba0-69747e5424d2",
"SealBody": "上海市宝山区市场监督管理局",
"SealInfos": [
{
"Location": {
"Height": 98,
"Width": 98,
"X": 143,
"Y": 78
},
"OtherTexts": [],
"SealBody": "上海市宝山区市场监督管理局",
"SealShape": "0"
}
],
"SealShape": "0"
}
}
TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.
The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.
Error Code | Description |
---|---|
FailedOperation.DownLoadError | File download failed. |
FailedOperation.ImageDecodeFailed | Image decoding failed. |
FailedOperation.ImageNoText | No text is detected in the image. |
FailedOperation.OcrFailed | OCR failed. |
FailedOperation.UnKnowError | Unknown error. |
FailedOperation.UnOpenError | The service is not activated. |
InvalidParameterValue.InvalidParameterValueLimit | Incorrect parameter value. |
LimitExceeded.TooLargeFileError | The file is too large. |
ResourceUnavailable.InArrears | |
ResourceUnavailable.ResourcePackageRunOut | |
ResourcesSoldOut.ChargeStatusException | Exceptional billing status. |
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