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Proceedings Paper

Data extraction in form documents with gray-level background using morphological processing
Author(s): Rapeeporn Chamchong; Yuttapong Rangsanseri; Punya Thitimajshima
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Paper Abstract

Automatic reading of form documents with gray-level background needs a preliminary task of preparing a clean image of the data to be recognized using OCR. In this paper, we present a data extraction process for such documents. First, the preprinted background is removed by decomposing the histogram of the input image. Reference lines are then subtracted from this image. Finally, the lost parts of character images overlaying with reference lines can be restored. The experiments carried out with a bank cheque will be given to illustrate the usefulness of such an algorithm.

Paper Details

Date Published: 22 December 1999
PDF: 5 pages
Proc. SPIE 3967, Document Recognition and Retrieval VII, (22 December 1999); doi: 10.1117/12.373484
Show Author Affiliations
Rapeeporn Chamchong, Mahasarakham Univ. (Thailand)
Yuttapong Rangsanseri, King Mongkuts Institute of Technology Ladkrabang (Thailand)
Punya Thitimajshima, King Mongkuts Institute of Technology Ladkrabang (Thailand)

Published in SPIE Proceedings Vol. 3967:
Document Recognition and Retrieval VII
Daniel P. Lopresti; Jiangying Zhou, Editor(s)

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