Vgg Face2 CSV#

Format specification#

Vgg Face 2 is a dataset for face-recognition task, the repository with some information and sample data of Vgg Face 2 is available here

Supported types of annotations:

Bbox
Points
Label

Format doesn’t support any attributes for annotations objects.

Import Vgg Face2 dataset#

A Datumaro project with a Vgg Face 2 dataset can be created in the following way:

datum project create
datum project import -f vgg_face2 <path_to_dataset>

Note: if you use datum project import then <path_to_dataset> should not be a subdirectory of directory with Datumaro project, see more information about it in the docs.

And you can also load Vgg Face 2 through the Python API:

import datumaro as dm

dataset = dm.Dataset.import_from('<path_to_dataset>', format='vgg_face2')

For successful importing of Vgg Face2 face the input directory with dataset should has the following structure:

vgg_face2_dataset/
├── labels.txt # labels mapping
├── bb_landmark
│   ├── loose_bb_test.csv  # information about bounding boxes for test subset
│   ├── loose_bb_train.csv
│   ├── loose_bb_<any_other_subset_name>.csv
│   ├── loose_landmark_test.csv # landmark points information for test subset
│   ├── loose_landmark_train.csv
│   └── loose_landmark_<any_other_subset_name>.csv
├── test
│   ├── n000001 # directory with images for n000001 label
│   │   ├── 0001_01.jpg
│   │   ├── 0001_02.jpg
│   │   ├── ...
│   ├── n000002 # directory with images for n000002 label
│   │   ├── 0002_01.jpg
│   │   ├── 0003_01.jpg
│   │   ├── ...
│   ├── ...
├── train
│   ├── n000004
│   │   ├── 0004_01.jpg
│   │   ├── 0004_02.jpg
│   │   ├── ...
│   ├── ...
└── <any_other_subset_name>
    ├── ...

Export Vgg Face2 dataset#

Datumaro can convert a Vgg Face2 dataset into any other format Datumaro supports. There is few examples how to do it:

# Using `convert` command
datum convert -if vgg_face2 -i <path_to_vgg_face2> \
    -f voc -o <output_dir> -- --save-images

# Using Datumaro project
datum project create
datum project import -f vgg_face2 <path_to_vgg_face2>
datum project export -f yolo -o <output_dir>

Note: to get the expected result from the conversion, the output format should support the same types of annotations (one or more) as Vgg Face2 (Bbox, Points, Label)

And also you can convert your Vgg Face2 dataset using Python API

import datumaro as dm

vgg_face2_dataset = dm.Dataset.import_from('<path_to_dataset', format='vgg_face2')

vgg_face2_dataset.export('<output_dir>', format='open_images', save_media=True)

Note: some formats have extra export options. For particular format see the docs to get information about it.

Export dataset to the Vgg Face2 format#

If you have dataset in some format and want to convert this dataset into the Vgg Face2, ensure that this dataset contains Bbox or/and Points or/and Label and use Datumaro to perform conversion. There is few examples:

# Using convert command
datum convert -if wider_face -i <path_to_wider> \
    -f vgg_face2 -o <output_dir>

# Using Datumaro project
datum project create
datum project import -f wider_face <path_to_wider>
datum project export -f vgg_face2 -o <output_dir> -- --save-media --image-ext '.png'

Note: vgg_face2 format supports only one Bbox per image

Extra options for exporting to Vgg Face2 format:

--save-media allow to export dataset with saving media files (by default False)
--image-ext <IMAGE_EXT> allow to specify image extension for exporting the dataset (by default .png)
--save-dataset-meta - allow to export dataset with saving dataset meta file (by default False)