Implement Cutout

[Chrisfsj2051]

Please note that this is slightly different from the current version in mmdet-projects.
To be more specific, n_holes can be given as a tuple to specify the range and cutout_shape can be given as float value in order to be compatible with STAC.

[codecov]

Codecov Report

Merging #3521 into master will increase coverage by 0.15%.
The diff coverage is 86.11%.

@@            Coverage Diff             @@
##           master    #3521      +/-   ##
==========================================
+ Coverage   58.88%   59.04%   +0.15%     
==========================================
  Files         205      205              
  Lines       13696    13731      +35     
  Branches     2310     2315       +5     
==========================================
+ Hits         8065     8107      +42     
+ Misses       5254     5248       -6     
+ Partials      377      376       -1     

Flag	Coverage Δ
#unittests	59.04% <86.11%> (+0.15%)	⬆️

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

Impacted Files	Coverage Δ
mmdet/datasets/pipelines/transforms.py	73.93% <85.71%> (+0.63%)	⬆️
mmdet/datasets/pipelines/__init__.py	100.00% <100.00%> (ø)
mmdet/models/roi_heads/mask_heads/maskiou_head.py	97.87% <0.00%> (+5.31%)	⬆️
mmdet/models/roi_heads/mask_scoring_roi_head.py	100.00% <0.00%> (+18.42%)	⬆️

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[hellock]

More unit tests can be added to increase the coverage.

[hellock]

Generally LGTM.

[Chrisfsj2051]

Hi @hellock , the coverage has been improved. It seems like every statement (except for __repr__ method) have been covered.

[Chrisfsj2051]

Is there anything wrong with the latest CI? It failed to install CUDA.