Image processing device, imaging device, image processing method, and image processing program
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United States of America Patent
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Feb 13, 2018
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app pub date -
Sep 14, 2016
filing date -
Mar 31, 2014
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Abstract
Disclosed are an image processing device, an imaging device, an image processing method, and an image processing program capable of, when recovering a deteriorated image due to a point spread function of an optical system, effectively performing phase recovery and suppressing the occurrence of artifact due to frequency recovery processing. The image processing device includes a phase recovery processing unit which subjects image data acquired from an imaging element by capturing an object image using an optical system to phase recovery processing using a phase recovery filter based on a point spread function of the optical system, a gradation correction processing unit which subjects image data subjected to the phase recovery processing to nonlinear gradation correction, and a frequency recovery processing unit which subjects image data subjected to the gradation correction to frequency recovery processing using a frequency recovery filter based on the point spread function of the optical system.
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