U-Net: Semantic segmentation with PyTorch - Custom dataset

Offline Dataset preprocessing

Make sure the data you have satisfies following conditions

• Directory tree

   - Data
          -- imgs
                  -- all train images
          -- masks 
                  -- all masks (file names should be same as train images)

• Size and color space
  • Make sure you have same size images
  • Make sure you have RGB color space for all images
  • if you need you can use ```utils\resize_and_img_format.py`` file
• Mask values (I have tested only for these values it might also work for multi labels but you need to adjust the classes)
  • Make sure mask values are only two i.e either 0 or 255
  • if you need you can use utils\\convert_to_binary.py file

Flood Area dataset

I have used all the offline dataset preprocessing for this kaggle dataset

• data.zip holds the preprocessed images
• unzip data.zip

Installation

• pip install -r requirements

Training

• python train.py --epochs 100 --batch-size 16

Prediction

• Visuvalize - python predict.py --model ./checkpoints/checkpoint_epoch100.pth -i ./data/imgs/0.jpg --viz --output ./0_OUT.jpg

• You can use utils/blending.py to create blended image

Image and mask

Blended Segmentation :

Colab NoteBook

• Link

Credits

• Pytorch-Unet