Image processing apparatus and image processing method

Details Image processing apparatus and image processing method Image processing apparatus and image processing method

2008-10-28

2011-12-20

Hasan, Mohammed (Department: 2873)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S254000

Reexamination Certificate

active

08081239

ABSTRACT:
An image processing apparatus includes a gradation correction unit configured to multiply input image data by a gradation correction value appropriate for the input image data so as to obtain gradation corrected image data; and a noise suppression unit configured to suppress noise of the gradation corrected image data on the basis of a noise model of the input image data to obtain output image data. The noise suppression unit includes a parameter generator configured to generate a noise suppression parameter in accordance with the gradation corrected image data by using the noise model; a parameter correction unit configured to multiply the noise suppression parameter by the gradation correction value to correct the noise suppression parameter; and a low-pass filter configured to vary characteristics thereof in accordance with the noise suppression parameter corrected by the parameter correction unit and to suppress noise of the gradation corrected image data.

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Office Action from Japanese Application No. 2007-279810, dated Jun. 21, 2011.

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