Merge branch 'main' of hf.co:datasets/histopathai/GLEASON_CNN

Add README.md for dataset preparation helpers and usage instructions

Implement feature X to enhance user experience and fix bug Y in module Z

Add validation images for ZT80 datasets

Implement feature X to enhance user experience and optimize performance

Implement feature X to enhance user experience and optimize performance

Add scripts for polygon extraction, validation, and file extraction

add .gitignore to exclude origin, dataset, and processed directories

initial commit