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CVL-Database - An Off-line Database for Writer Retrieval, Writer Identification and  Word 

Spotting

=Contact Author=
 Markus Diem
 Stefan Fiel
 Florian Kleber
 Robert Sablatnig
 sab@caa.tuwien.ac.at

=Copyright=
CVL Database is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License 

[http://creativecommons.org/licenses/by-nc/3.0/]

This database may be used for non-commercial research purpose only. If you publish material based 

on this database, we request you to include a reference to the publication listed below.

=Current Version=
1.0

=Keywords=
Writer Identification, Word Spotting, Cursive Handwriting

=Description=
The CVL Database is a public database for writer retrieval, writer identification and word 

spotting. The database consists of 7 different handwritten texts (1 German and 6 Englisch Texts) 

and 309 different writers. For each text a rgb color image (300 dpi) comprising the handwritten 

text and the printed text sample is available as well as a cropped version (only handwritten). An 

unique id identifies the writer, whereas the Bounding Boxes for each single word are stored in an 

XML file.

The CVL-database consists of images with cursively handwritten german and english texts which has 

been choosen from literary works. All pages have an unique writer id and the text number 

(separated by a dash) at the upper right corner, followed by the printed sample text. The text is 

placed between two horizontal separatores. Beneath the printed text individuals have been asked 

to write the text using a ruled undersheet to prevent curled text lines. The layout follows the 

style of the [http://www.iam.unibe.ch/fki/databases/iam-handwriting-database|IAM database]. 

Samples of the following texts have been used: 
* Edwin A. Abbot - Flatland: A Romance of Many Dimension (92 words).
* William Shakespeare - Mac Beth (49 words).
* Wikipedia - Mailüfterl (73 words, under CC Attribution-ShareALike License).
* Charles Darwin - Origin of Species (52 words).
* Johann Wolfgang von Goethe - Faust. Eine Tragödie (50 words).
* Oscar Wilde - The Picture of Dorian Gray (66 words).
* Edgar Allan Poe - The Fall of the House of Usher (78 words).



=Metadata and Technical Details=
All pages have a unique writer id and the text number (separated by a dash) at the upper right 

corner, followed by the printed sample text. The text is placed between two horizontal 

separators. The files are named according the unique writer id and the text number. In addition, 

text lines and words are extracted. Their filename convention is the same with the text line 

number and word number respectively added at the end. For word images, the GT entry is the last 

part of the filename. The Bounding Boxes for each single word are stored in an XML file according 

the unique id.



=Ground Truth Data=
* [[Bounding Boxes, IDs, and Transcription for the CVL Database]]

=Related Tasks=
* [[Writer Identification and Word Spotting for the CVL Database]]


=References=
Markus Diem, Stefan Fiel, Florian Kleber and Robert Sablatnig, CVL-Database: An Off-line Database 

for Writer Retrieval, Writer Identification and Word Spotting, In Proc. of the 12th Int. 

Conference on Document Analysis and Recognition (ICDAR) 2013, forthcoming. 

=Submitted Files=
==Version 1.0==
Please refer to [http://caa.tuwien.ac.at/cvl/research/cvl-database/index.html 

http://caa.tuwien.ac.at/cvl/research/cvl-database/index.html] for downloading the files from the 

origninal datasets site.

* [http://www.iapr-tc11.org/dataset/CVL/cvl-database.zip Original images] (3.92 GB)
* [http://www.iapr-tc11.org/dataset/CVL/cvl-database-cropped.zip Cropped images] (1.12 GB)

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This page is editable only by [[IAPR-TC11:Reading_Systems#TC11_Officers|TC11 Officers ]].