Volume 3 Number 6 (Jun. 2008)
Home > Archive > 2008 > Volume 3 Number 6 (Jun. 2008) >
JSW 2008 Vol.3(6): 29-36 ISSN: 1796-217X
doi: 10.4304/jsw.3.6.29-36

Thresholding Images of Historical Documents Using a Tsallis-Entropy Based Algorithm

Carlos A.B.Mello, Luciana A.Schuler
Department of Computing and Systems, University of Pernambuco, Recife, Brazil

Abstract—In this paper we present an algorithm for thresholding images of historical documents. The main objective is to generate high quality monochromatic images in order to make them easily accessible through the Internet. Our new algorithm is based on two definitions of entropy: Shannon’s classical concept and a variation called Tsallis entropy. For historical documents, our method proved to be more efficient than several known thresholding algorithms by several measures.

Index Terms—Image processing, Document Processing, Historical documents, thresholding, entropy

[PDF]

Cite: Carlos A.B.Mello, Luciana A.Schuler, " Thresholding Images of Historical Documents Using a Tsallis-Entropy Based Algorithm," Journal of Software vol. 3, no. 6, pp. 29-36, 2008.

General Information

ISSN: 1796-217X (Online)
Frequency:  Bimonthly 
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, CNKIGoogle Scholar, ProQuest, INSPEC(IET), ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
  • Apr 26, 2021 News!

    Vol 14, No 4- Vol 14, No 12 has been indexed by IET-(Inspec)     [Click]

  • Nov 18, 2021 News!

    Papers published in JSW Vol 16, No 1- Vol 16, No 6 have been indexed by DBLP   [Click]

  • Dec 24, 2021 News!

     Vol 15, No 1- Vol 15, No 6 has been indexed by IET-(Inspec)   [Click]

  • Nov 18, 2021 News!

    [CFP] 2022 the annual meeting of JSW Editorial Board, ICCSM 2022, will be held in Rome, Italy, July 21-23, 2022   [Click]

  • Apr 27, 2022 News!

    Vol 17, No 3 has been published with online version      [Click]