[Fix] fix the bug of 'sigma' and 'output file name' in bottom_up_img_demo.py

[chenxinfeng4]

Motivation

Fix the bugs while using the bottom_up_img_demo.py

Modification

• Use the custom sigma if user have defined it in config file. It's vital especially when the keypoint number in custom dataset is the same as the default human pose.
• fix the bug of output file name

[CLAassistant]

All committers have signed the CLA.

[jin-s13]

Thanks for your contribution! @chenxinfeng4
Please sign CLA so that we can merge this change.

[ly015]

Thank you very much for your contribution. This PR is possibly partially duplicated with #1101 . Could you please rebase your branch onto master and solve the conflict?

[liqikai9]

Thanks for your contribution! @chenxinfeng4
Your code is clearer than PR #1101 . Could you please rebase your branch onto the latest master branch and solve the conflict?

[chenxinfeng4]

I've solve the conflict in last MERGE (commit = a5d5eca). Please check it.

[codecov]

Codecov Report

Merging #1107 (0d177bf) into master (66651f5) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1107      +/-   ##
==========================================
- Coverage   83.39%   83.38%   -0.01%     
==========================================
  Files         196      196              
  Lines       15146    15144       -2     
  Branches     2736     2736              
==========================================
- Hits        12631    12628       -3     
  Misses       1823     1823              
- Partials      692      693       +1     

Flag	Coverage Δ
unittests	83.32% <100.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
mmpose/apis/inference.py	48.98% <100.00%> (-0.35%)	⬇️
mmpose/datasets/pipelines/shared_transform.py	85.36% <0.00%> (-0.49%)	⬇️

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[liqikai9]

I've solve the conflict in last MERGE (commit = a5d5eca). Please check it.

There seems to have some lint problem. You can follow this guide to install pre-commit hook , which can check and format the code automatically on every commit.

[OpenMMLab-Assistant-004]

Hi @chenxinfeng4 ！First of all, we want to express our gratitude for your significant PR in the mmpose project. Your contribution is highly appreciated, and we are grateful for your efforts in helping improve this open-source project during your personal time. We believe that many developers will benefit from your PR.

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Thank you again for your contribution❤