Detection of text strings from mixed text/graphics images

Chien-Hua Tsai; Christos A. Papachristou

doi:10.1117/12.410838

21 December 2000 Detection of text strings from mixed text/graphics images

Chien-Hua Tsai, Christos A. Papachristou

Proceedings Volume 4307, Document Recognition and Retrieval VIII; (2000) https://doi.org/10.1117/12.410838
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

A robust system for text strings separation from mixed text/graphics images is presented. Based on a union-find (region growing) strategy the algorithm is thus able to classify the text from graphics and adapts to changes in document type, language category (e.g., English, Chinese and Japanese), text font style and size, and text string orientation within digital images. In addition, it allows for a document skew that usually occurs in documents, without skew correction prior to discrimination while these proposed methods such a projection profile or run length coding are not always suitable for the condition. The method has been tested with a variety of printed documents from different origins with one common set of parameters, and the experimental results of the performance of the algorithm in terms of computational efficiency are demonstrated by using several tested images from the evaluation.

Citation Download Citation

Chien-Hua Tsai and Christos A. Papachristou "Detection of text strings from mixed text/graphics images", Proc. SPIE 4307, Document Recognition and Retrieval VIII, (21 December 2000); https://doi.org/10.1117/12.410838

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