216201 image format error

灰太狼 2022-05-25 00:27 156阅读 0赞

百度云api银行卡号识别文档（获取access\_token文档）：[http://ai.baidu.com/docs\#/Auth/top][http_ai.baidu.com_docs_Auth_top]  
百度云api银行卡号识别文档：[https://ai.baidu.com/docs\#/OCR-API/475c4c8c][https_ai.baidu.com_docs_OCR-API_475c4c8c]  
百度云api银行卡号识别文档（错误码查看）：[https://ai.baidu.com/docs\#/OCR-API/58fd45dd][https_ai.baidu.com_docs_OCR-API_58fd45dd]  
百度云api银行卡号识别文档（调用次数及价格）：[http://ai.baidu.com/docs\#/OCR-Pricing/4841e8a9][http_ai.baidu.com_docs_OCR-Pricing_4841e8a9]

在调用百度云api的文字识别中的识别银行卡号码api时，遇到了这样的问题，

{"log_id": 8249672164825685737, "error_code": 216201, "error_msg": "image format error"}

curl -i -k 'https://aip.baidubce.com/rest/2.0/ocr/v1/bankcard?access_token=你的access_token' --data 'image=urlencode(base64(图片))' -H 'Content-Type:application/x-www-form-urlencoded'

![这里写图片描述][Image 1]  
首先获取的access\_token是正确的，再者，图片base64过之后urlencode了，也是正确的。图片信息如下：（这里只是举例，并非一张银行卡图片）  
这是base64图片：

data:image/jpeg;base64,/9j/4RqqRXhpZgAATU0AKgAAAAgABwESAAMAAAABAAEAAAEaAAUAAAABAAAAYgEbAAUAAAABAAAAagEoAAMAAAABAAIAAAExAAIAAAAcAAAAcgEyAAIAAAAUAAAAjodpAAQAAAABAAAApAAAANAACvyAAAAnEAAK/IAAACcQQWRvYmUgUGhvdG9zaG9wIENTNSBXaW5kb3dzADIwMTU6MDQ6MTIgMDg6MzY6MDcAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAACMKADAAQAAAABAAABbAAAAAAAAAAGAQMAAwAAAAEABgAAARoABQAAAAEAAAEeARsABQAA

这里进行urlencode

data%3aimage%2fjpeg%3bbase64%2c%2f9j%2f4RqqRXhpZgAATU0AKgAAAAgABwESAAMAAAABAAEAAAEaAAUAAAABAAAAYgEbAAUAAAABAAAAagEoAAMAAAABAAIAAAExAAIAAAAcAAAAcgEyAAIAAAAUAAAAjodpAAQAAAABAAAApAAAANAACvyAAAAnEAAK%2fIAAACcQQWRvYmUgUGhvdG9zaG9wIENTNSBXaW5kb3dzADIwMTU6MDQ6MTIgMDg6MzY6MDcAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAACMKADAAQAAAABAAABbAAAAAAAAAAGAQMAAwAAAAEABgAAARoABQAAAAEAAAEeARsABQAA

组curl语句

curl -i -k 'https://aip.baidubce.com/rest/2.0/ocr/v1/bankcard?access_token=你的access_token' --data 'image=data%3aimage%2fjpeg%3bbase64%2c%2f9j%2f4RqqRXhpZgAATU0AKgAAAAgABwESAAMAAAABAAEAAAEaAAUAAAABAAAAYgEbAAUAAAABAAAAagEoAAMAAAABAAIAAAExAAIAAAAcAAAAcgEyAAIAAAAUAAAAjodpAAQAAAABAAAApAAAANAACvyAAAAnEAAK%2fIAAACcQQWRvYmUgUGhvdG9zaG9wIENTNSBXaW5kb3dzADIwMTU6MDQ6MTIgMDg6MzY6MDcAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAACMKADAAQAAAABAAABbAAAAAAAAAAGAQMAAwAAAAEABgAAARoABQAAAAEAAAEeARsABQAA' -H 'Content-Type:application/x-www-form-urlencoded'

无论换多少张图片，都是返回图片格式错的响应信息，本文开始的错误，很是困惑！！！图片是银行卡图片，格式是jpg，大小：40k  
经过各种尝试解决，还是找出了问题的所在，base64后，出了问题！！！  
base64后，正确的格式应该是去掉图片的头信息

/9j/4RqqRXhpZgAATU0AKgAAAAgABwESAAMAAAABAAEAAAEaAAUAAAABAAAAYgEbAAUAAAABAAAAagEoAAMAAAABAAIAAAExAAIAAAAcAAAAcgEyAAIAAAAUAAAAjodpAAQAAAABAAAApAAAANAACvyAAAAnEAAK/IAAACcQQWRvYmUgUGhvdG9zaG9wIENTNSBXaW5kb3dzADIwMTU6MDQ6MTIgMDg6MzY6MDcAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAACMKADAAQAAAABAAABbAAAAAAAAAAGAQMAAwAAAAEABgAAARoABQAAAAEAAAEeARsABQAA

改了格式以后，再进行urlencode，组curl语句，没问题了，可以正常返回正确结果了。

[http_ai.baidu.com_docs_Auth_top]: http://ai.baidu.com/docs#/Auth/top
[https_ai.baidu.com_docs_OCR-API_475c4c8c]: https://ai.baidu.com/docs#/OCR-API/475c4c8c
[https_ai.baidu.com_docs_OCR-API_58fd45dd]: https://ai.baidu.com/docs#/OCR-API/58fd45dd
[http_ai.baidu.com_docs_OCR-Pricing_4841e8a9]: http://ai.baidu.com/docs#/OCR-Pricing/4841e8a9
[Image 1]: