Title :
Thresholding and enhancement of text images for character recognition
Author :
Jiang, W. W Cindy
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
A scheme which converts graytone text images of low spatial resolution to bi-level images of higher spatial resolution for character recognition are presented. Higher recognition rates are achieved when text images are processed using the proposed scheme. A good application of the proposed scheme is the recognition of characters in scene images
Keywords :
filtering theory; image enhancement; image resolution; interpolation; mathematical morphology; optical character recognition; OCR; bi-level images; character recognition; graytone images; image enhancement; morphological filter; scene images; spatial resolution; text images; variable thresholding; Character recognition; Image converters; Image recognition; Image resolution; Interpolation; Layout; Optical character recognition software; Pixel; Spatial resolution; Text recognition;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.479975
