Robust Phase-Based Features Extracted From Image By A Binarization Technique
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2016, Vol 18, Issue 4
Abstract
Abstract: In this paper, a robust phase-based features extracted by binarization technique for ancient document images is proposed. Three feature maps derived from the phase information of an input document image constitute the core of this binarization model. These features are the maximum moment of phase congruency covariance, a locally weighted mean phase angle, and a phase preserved denoised image. The proposed model consists of three standard steps: 1) preprocessing; 2) main binarization; and 3) postprocessing.In the preprocessing and main binarization steps, the features used are mainly phase derived, while in the post processing step, specialized adaptive Gaussian and median filters are considered. One of the outputs of the binarization step, which shows high recall performance, is used in a proposed post processing method toimprove the performance of other binarization methodologies
Authors and Affiliations
Dr. T. Amitha, , Dr. B. Raghu
Keywords
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