handwriting-test

This dataset contains handwriting stroke data collected using a stylus (S Pen) on a tablet device.

Data Format

Each sample in data/train.jsonl contains:

Field	Description
id	Unique identifier (UUID)
text	The prompt text that was written
created_at	ISO timestamp of when the sample was created
device	Device information (user agent, platform, pixel ratio)
canvas	Canvas dimensions (width, height)
strokes	Array of strokes, each containing points
svg_path	Path to SVG visualization
image_path	Path to PNG visualization

Stroke Point Format

Each point in a stroke contains:

Field	Description
x, y	Raw coordinates (pixels)
xn, yn	Normalized coordinates (0-1)
t	Timestamp (ms since sample start)
p	Pressure (0-1)
tiltX, tiltY	Pen tilt angles (if available)

Visualization

The dataset includes SVG and PNG renders of each handwriting sample in the renders/ directory.

Usage

from datasets import load_dataset

dataset = load_dataset("finnbusse/handwriting-test")

Collection Method

Data was collected using a web application with Pointer Events API, capturing stylus input including pressure and tilt when available.