Datasets

Optical Character Recognition (OCR)

Machine-print OCR

• UW-I English Scientific and Technical Journal pages image database

• UW-II English/Japanese Document Image Database

• UW-III English/Technical Document Image Database

Handwriting

On-line: vectorial, <math>(x_t, y_t)</math>

• CEDAR On-line Handwriting Database

• UNIPEN database (Click on link 'CDROMs')

• Ethem Alpaydin's on-line digit db

• Ethem Alpaydin's optical digit db

• Kuchibue & Nakayosi (by Masaaki Nakagawa and Stefan Jaeger)
  • Together, these databases comprise more than 3 million Japanese characters from 283 writers.

• The Informal Competition of Recognizing On-line Words (ICROW) by the Unipen Foundation

Off-line: image, <math>I(x,y)</math>

• CEDAR Off-line Handwriting CDROM1

• The NIST handwriting OCR databases Catalog

• CENPARMI (four 3.5" diskettes) 17000 binarized numbers from ZIP codes on envelopes by the US Postal Services

• Handwritten LOB-corpus sentences by Horst Bunke, University of Bern, Switzerland

• IAM Database - A full English sentence database for off-line handwriting recognition.

• MARG- Medical Article Records Groundtruth ([1]) is a freely-available repository of document page images and their associated textual and layout data. The data has been reviewed and corrected to establish its "ground truth". Please contact Dr. George Thoma (thoma@lhc.nlm.nih.gov) at the National Library of Medicine for more information.

• Hindi font samples by Andras Kornai, June 5 2003

Miscellaneous Kanji handwritten OCR databases

• IPTP CD-ROM2

Combined on-line/offline handwriting

• IRONOFF by the IRESTE group of the University of Nantes, France, is the first database of this type which is available. It combines handwritten samples of words in image (pixel) and in vector format.

Contact: Christian VIARD-GAUDIN (cviard@ireste.fr)