[Bug] onnx推理结果与pth结果不一致

[Clichong]

Prerequisite

• I have searched Issues and Discussions but cannot get the expected help.
• The bug has not been fixed in the latest version (0.x) or latest version (1.x).

Task

I have modified the scripts/configs, or I'm working on my own tasks/models/datasets.

Branch

main branch https://github.com/open-mmlab/mmocr

Environment

python=3.8
torch1.10.0+cu111
torchvision0.10.0+cu111

Reproduces the problem - code sample

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Reproduces the problem - command or script

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Reproduces the problem - error message

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Additional information

参考官方提供的mmocr.api下的TextRecInferencer推理类，提取里面的预处理和后处理流程对onnx进行推理，但是onnx推理结果和pth推理结果不一致