ITERATIVE BINARIZATION OF DIGITAL HOLOGRAMS USING THE ERROR DIFFUSION METHOD
E. A. Kurbatova, V. G. Rodin, P. A. Cheremkhin
National Research Nuclear University "MEPhI", Moscow, Russia
Keywords: цифровая голография, бинаризация, диффузия ошибки, итеративный метод, digital holography, binarization, error diffusion, iterative method
Abstract
Binarization of digital holograms is used for storage and on-line transmission of recorded information, as well as for optical image recovery via binary micromirror light modulators. The possibilities of binarization of optically recorded holograms by iterative methods using the error diffusion operation at each step of changing the binarization threshold or only at the final iteration are considered. The parameter variation of the methods is analyzed, and the quality of the images recovered from binarized holograms is compared. It is determined that the method using the error diffusion operation only at the final iteration improves the image recovery quality by 12% as compared to single-step methods
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