Datasets:

r-three
/

parametric-shapes

configs:
  - config_name: default
    data_files:
      - split: train
        path: data/train-*
      - split: validation
        path: data/validation-*
      - split: test
        path: data/test-*
dataset_info:
  features:
    - name: image
      dtype: image
    - name: shape_type
      dtype:
        class_label:
          names:
            '0': 0
            '1': 1
            '2': 2
            '3': 3
            '4': 4
    - name: shape_name
      dtype:
        class_label:
          names:
            '0': circle
            '1': rectangle
            '2': hexagon
            '3': star
            '4': triangle
    - name: pos_x
      dtype: float32
    - name: pos_y
      dtype: float32
    - name: size
      dtype: float32
    - name: color
      dtype: float32
    - name: rotation
      dtype: float32
    - name: id
      dtype: int32
  splits:
    - name: train
      num_bytes: 953573
      num_examples: 5000
    - name: validation
      num_bytes: 191415
      num_examples: 1000
    - name: test
      num_bytes: 190454
      num_examples: 1000
  download_size: 924092
  dataset_size: 1335442

Parametric Shapes Dataset

This is a synthetic dataset of images containing geometric shapes with controllable parameters generated for educational purposes at the University of Toronto.

This dataset contains 7000 synthetic images (32x32) of geometric shapes including circles, rectangles, hexagons, stars, and triangles. Each image is generated with random parameters such as position, size, color, and rotation.

Dataset Splits

Train: 5,000 images (1,000 per shape) Validation: 1,000 images (200 per shape) Test: 1,000 images (200 per shape)

All splits are non-overlapping and generated with different random seeds.

Parameters

Each image is parameterized by 6 independent factors:

Factor	Type	Range	Description
`shape_type`	Categorical	0-4	Shape class (0=circle, 1=rectangle, 2=hexagon, 3=star, 4=triangle)
`pos_x`	Continuous	0.2-0.8	Horizontal position of shape center (normalized)
`pos_y`	Continuous	0.2-0.8	Vertical position of shape center (normalized)
`size`	Continuous	0.1-0.35	Size of shape relative to image (radius/width)
`color`	Continuous	0-1	Hue value (converted to RGB with high saturation)
`rotation`	Continuous	0-2π	Rotation angle in radians (no effect on circles)

License

This dataset is released under the MIT License. Feel free to use it for educational and research purposes.