Isolated Handwritten Devnagari Character Dataset

This dataset contains approx 270 samples of each of 111 Devnagari "characters" written by over 100 native Hindi speakers. The data was collected using Acecad Digimemo electronic clipboard devices using the Digimemo-DCT application.  The data is in standard UNIPEN format.

An offline version of the data is also available in the form of bi-level TIFF images, generated from the online data using simple piecewise linear interpolation with a constant thickening factor applied.

The data is available only for research use.

Related Links

• Structure of Dataset hpl-devnagari-iso-char, with statistics of characters
• Details of 111 Devanagari Characters with Unicode mappings

Downloads

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hpl-dvng-iso-char

Complete dataset containing approximately 270 samples per character.

• Online data, UNIPEN format, rar file (Version 1.0, July 2009, 18 MB),  dataset structure
• Offline (image) data, Bi-level TIFF, rar file (Version 1.0, July 2009, 17 MB)

hpl-dvng-iso-char-train

Subset of approx 170 samples/char that may be used as the training set.

• Online data, UNIPEN format, rar file (Version 1.0, July 2009, 15 MB), dataset structure
• Offline (image) data, Bi-level TIFF, rar file (Version 1.0, July 2009, 14 MB)

hpl-dvng-iso-char-test

Subset of approx 60 samples/char that may be used as the test set.

• Online data, UNIPEN format, rar file (Version 1.0, July 2009, 3 MB), dataset structure
• Offline (image) data, Bi-level TIFF, rar file (Version 1.0, July 2009, 3 MB)

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