albumentations.ai | Static site generator for albumentations.ai | Static Site Generator library
kandi X-RAY | albumentations.ai Summary
kandi X-RAY | albumentations.ai Summary
Static site generator for albumentations.ai
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QUESTION
I use Albumentations augmentations in my computer vision tasks. However, I don't fully understand when to use normalization on my images (I use min-max normalization). Do I need to use normalization before augmentation functions, but values would not be between 0-1, or do I use normalization just after augmentations, so that values are between 0-1, or I use normalization in both cases - before and after augmentations?
For example, when I use Sharpen, values are not in 0-1 range (they vary in -0.5-1.5 range). Does that affect model performance? If yes, how?
Thanks in advance.
...ANSWER
Answered 2022-Feb-11 at 10:30The basic idea is that you should have the input of your neural network around 0 and with a variance of 1. There is a mathematical reason why it helps the learning process of neural network. This is not the case for other algorithms like tree boosting.
If you train from scratch the type of normalization (min max or other) should not impact the model performance (except if, for exemple your max/min value is really extrem compare to your other data point).
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Install albumentations.ai
Install the git hook scripts for pre-commit: pre-commit install.
If you need to work with the main site, fetch required data from GitHub API: GITHUB_TOKEN=<PERSONAL_ACCESS_TOKEN> make fetch-data, e.g. GITHUB_TOKEN=123a make fetch-data. If you need to work only with documentation, you can skip that step.
Start development servers both for the main site and for the documentation: make dev. You can also start only the development server for documentation by running make mkdocs-dev.
Open http://localhost:3000 in your browser to see the current version of the main site.
Open http://localhost:8000 in your browser to see the current version of the documentation.
When you change templates or static assets, the browser will reload all changed pages.
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