System Information

Hi!

Running python generate_onnx_models.py inside opencv_extra/testdata/dnn/onnx to generate new test models and data results in error

It seem that postprocess_model() function is not located in wrong place

OpenCV python version: 3.8.10
Operating System / Platform: Ubuntu 20.04, focal
Python version: 3.8.10

Detailed description

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============== Diagnostic Run torch.onnx.export version 2.0.0+cpu ==============
verbose: False, log level: Level.ERROR
======================= 0 NONE 0 NOTE 0 WARNING 0 ERROR ========================

slice_opset_11_steps_2d input has sizes torch.Size([6, 6])
slice_opset_11_steps_2d output has sizes torch.Size([2, 2])

============== Diagnostic Run torch.onnx.export version 2.0.0+cpu ==============
verbose: False, log level: Level.ERROR
======================= 0 NONE 0 NOTE 0 WARNING 0 ERROR ========================

Traceback (most recent call last):
  File "generate_onnx_models.py", line 530, in <module>
    postprocess_model("models/slice_opset_11_steps_2d.onnx", [['height', 'width']])
NameError: name 'postprocess_model' is not defined

Steps to reproduce

Running python generate_onnx_models.py inside opencv_extra/testdata/dnn/onnx to generate new test models and data results in error

Issue submission checklist

• I report the issue, it's not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files (videos, images, onnx, etc)