发明名称 |
IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM |
摘要 |
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, suppressing the occurrence of artifact and color gradation and achieving reduction in computational costs. The image processing device includes a frequency recovery processing unit which subjects image data acquired from an imaging element by capturing an object image using an optical system to frequency recovery processing using a frequency recovery filter based on a point spread function of the optical system, a gradation correction processing unit which subjects image data subjected to the frequency recovery processing to nonlinear gradation correction, and a phase recovery processing unit which subjects image data subjected to the gradation correction to phase recovery processing using a phase recovery filter based on the point spread function of the optical system. |
申请公布号 |
US2017006218(A1) |
申请公布日期 |
2017.01.05 |
申请号 |
US201615267634 |
申请日期 |
2016.09.16 |
申请人 |
FUJIFILM Corporation |
发明人 |
NARUSE Yousuke;SUGIMOTO Masahiko;HAYASHI Kenkichi |
分类号 |
H04N5/232;H04N9/77;H04N9/64;H04N5/357;H04N9/077;H04N9/083 |
主分类号 |
H04N5/232 |
代理机构 |
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代理人 |
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主权项 |
1. An image processing device comprising:
a frequency recovery processing unit which subjects image data acquired from an imaging element by capturing an object image using an optical system to frequency recovery processing using a frequency recovery filter based on a point spread function of the optical system; a gradation correction processing unit which subjects image data subjected to the frequency recovery processing to nonlinear gradation correction; and a phase recovery processing unit which subjects image data subjected to the gradation correction to phase recovery processing using a phase recovery filter based on the point spread function of the optical system. |
地址 |
Tokyo JP |