Patent ID: 8786764
Filing Date: 2014-07-22
Classification: G03B,G06K,H04N

Abstract:
1. An imaging apparatus for electronically capturing an image of a subject, comprising: an optical system with a light amount adjustment function operable to focus light from a subject; an imaging unit operable to read an optical image of the subject that is formed with the light focused by the optical system, and obtain the read optical image as an image signal; a backlight correction unit operable to perform backlight correction of the image signal by performing tone conversion of converting a tone of a processing target pixel that is included in an image formed by the image signal, the tone conversion being performed in a manner to at least increase a luminance level of a dark region of the image; a control unit operable to control the backlight correction by the backlight correction unit, and adjust an amount of light in the optical system in a manner that an exposure light amount of the imaging unit decreases by a predetermined amount; and a noise-reduction processing unit operable to perform noise-reduction processing of reducing noise of the image signal or an output image signal of the backlight correction unit, wherein the control unit increases an intensity of the noise-reduction processing unit according to the decrease amount of the exposure light amount of the optical system.