Any gradcam / heatmap code available for v2?

fastai fastai dev
1

Has anyone implemented gradcam or cam++ in v2 yet? Or even just basic heatmaps?

I’m missing having those for debugging but wanted to check before I work on it.

Thanks!

2

you may check the course nb pets more … https://github.com/fastai/fastai2/blob/master/nbs/course/lesson6-pets-more.ipynb

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Perfect thanks for the link @s.s.o!

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There’s another (IMO cleaner) implementation in this chapter in the book: https://github.com/fastai/fastbook/blob/master/18_CAM.ipynb

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I created a package that does this too, though it’s not been tested with multi-label models

Repo: https://github.com/Synopsis/fastai2_extensions
Forum Post: Fastai-extensions Package

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