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» An evaluation survey of binarization algorithms on historica...
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SAC
2008
ACM
13 years 4 months ago
An objective way to evaluate and compare binarization algorithms
The choice of the best binarization algorithm is very critical for any document image processing system, since it is one of the first tasks and any mistake it performs will be car...
Ergina Kavallieratou
ICPR
2010
IEEE
13 years 8 months ago
Unsupervised Evaluation Methods Based on Local Gray-Intensity Variances for Binarization of Historical Documents
Abstract--We attempt to evaluate the efficacy of six unsupervised evaluation method to tune Sauvola's threshold in optical character recognition (OCR) applications. We propose...
Marte Alejandro Ramírez-Ortegón, Raul Rojas
ICPR
2006
IEEE
13 years 11 months ago
Adaptive Binarization of Historical Document Images
In this paper, we present a binarization technique specifically designed for historical document images. Existing methods for this problem focus on either finding a good global th...
Ergina Kavallieratou, Efstathios Stamatatos
ICPR
2010
IEEE
13 years 8 months ago
Transition Thresholds for Binarization of Historical Documents
Abstract--This paper extends the transition method for binarization based on transition pixels, a generalization of edge pixels. This method originally computes transition threshol...
Marte Alejandro Ramírez-Ortegón, Raul Rojas
ICDAR
2011
IEEE
12 years 4 months ago
Ternary Entropy-Based Binarization of Degraded Document Images Using Morphological Operators
—A vast number of historical and badly degraded document images can be found in libraries, public, and national archives. Due to the complex nature of different artifacts, such p...
T. Hoang Ngan Le, Tien D. Bui, Ching Y. Suen