The Huawei Cloud API conforms to the RESTful design specifications. Which of the following options is not a way to initiate a request?

• A.Curl
• B.Kerberors
• C.REST client
• D.Coding

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Image recognition tasks can be divided into three levels, according to the abstraction of the processing content, from low to high?

• A.Image analysis, image understanding, image processing
• B.Image processing, image analysis, image understanding
• C.Image analysis, image processing, image understanding
• D.Image understanding. Image analysis. Image Processing

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When photographing a document with a mobile phone, the document in the image is distorted due to the shooting angle. You can find () coordinates of the corresponding key points, () transform the image, and correct the document image.

• A.3, Affine
• B.3, perspective
• C.4, perspective
• D.4, Affine

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