Paddle

Requirements

Paddle support requires the image-dataset-converter-paddle library.

Image classification

With the following command, a sub-dir structured is converted into Paddle format. The integer ID/label text mapping is stored in ./paddle/labels.map, the label ID/file mapping in files.txt and the images are stored relatively to the output directory in the jpg sub-directory:

idc-convert -l INFO \
  from-subdir-ic \
    -l INFO \
    -i ./subdir \
  to-paddle-ic \
    -l INFO \
    -o ./paddle \
    --id_label_map ./paddle/labels.map \
    --file_label_map files.txt \
    --relative_path jpg

The following converts all Paddle .txt files with image/label definitions back into sub-directory format:

idc-convert -l INFO \
  from-paddle-ic \
    -l INFO \
    -i ./paddle/*.txt \
    -m ./paddle/label_list.map \
  to-subdir-ic \
    -l INFO \
    -o ./subdir/

Image segmentation

The following converts indexed PNGs into Paddle's image segmentation format:

idc-convert -l INFO \
  from-indexed-png-is \
    -l INFO \
    -i ./indexed/*.png \
    --labels l1 l2 l3 l4 \
  to-paddle-is \
    -l INFO \
    -o ./paddle

And this command converts the Paddle format into indexed PNGs again:

idc-convert -l INFO \
  from-paddle-is \
    -l INFO \
    -i ./paddle/*_list.txt \
    --labels_file ./paddle/labels.txt \
  to-indexed-png-is \
    -l INFO \
    -o ./indexed