Title :
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
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;
Conference_Titel :
Systems, Man and Cybernetics, 2008. SMC 2008. IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2383-5
Electronic_ISBN :
1062-922X
DOI :
10.1109/ICSMC.2008.4811450
