A new algorithm to threshold the courtesy amount of Brazilian bank checks

Author

Neves, R.F.P. ; Mello, C.A.B. ; Silva, M.S. ; Bezerra, B.L.D.

Author_Institution

Dept. of Comput. & Syst., Univ. of Pernambuco, Recife

fYear

2008

fDate

12-15 Oct. 2008

Firstpage

1226

Lastpage

1230

Abstract

This paper describes a new algorithm for thresholding the courtesy amount of Brazilian bank checks. These images have complex backgrounds which is a problem for an automatic recognition system. The new approach is based on Tsallis entropy to find the best threshold value. Histogram specification is also used for preprocessing some images. The bi-level images are analyzed through several quantitative measures and it achieved the best results when compared with the images produced by other classical thresholding algorithms.

Keywords

cheque processing; entropy; image recognition; image segmentation; Brazilian bank checks; Tsallis entropy; automatic recognition system; bi-level images; histogram specification; image preprocessing; thresholding algorithms; Algorithm design and analysis; Character recognition; Entropy; Feature extraction; Focusing; Histograms; Image analysis; Image recognition; Optical character recognition software; Text recognition; courtesy amount; image processing; threshold;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, Man and Cybernetics, 2008. SMC 2008. IEEE International Conference on

Conference_Location

Singapore

ISSN

1062-922X

Print_ISBN

978-1-4244-2383-5

Electronic_ISBN

1062-922X

Type

conf

DOI

10.1109/ICSMC.2008.4811450

Filename

4811450