Maximum a posteriori estimation in presence of film grain noise |
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| Authors: | A.S. Tavildar H.M. Gupta S.N. Gupta |
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| Affiliation: | Department of Electronics, Lok Nayak Bhawan, Khan Market, New Delhi-110 003, India;Department of Electrical Engineering, Indian Institute of Technology, New Delhi-110 016, India |
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| Abstract: | Maximum a posteriori (MAP) estimation of images in the presence of film grain noise has been presented. Image statistics have been assumed as gaussian with known mean and variance. Signal independent transformations have been used which considerably reduce the computations in MAP estimation. Normalised mean square error (NMSE) has been evaluated and the results have been discussed. |
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| Keywords: | Image restoration MAP estimation film grain noise signal independent transformation |
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