Imaging apparatus, imaging method, storage medium, and...

Details Imaging apparatus, imaging method, storage medium, and... Imaging apparatus, imaging method, storage medium, and...

2011-08-02

2011-08-02

Whipkey, Jason (Department: 2622)

Television

Camera, system and detail

Optics

C348S255000

Reexamination Certificate

active

07990465

ABSTRACT:
An imaging apparatus for capturing a moving image performs backlight correction of an image and outputs a natural image. The imaging apparatus electronically captures an image of a subject. An optical system has a light amount adjustment function. An imaging unit reads an optical image of the subject that is formed by the optical system. An A/D converter subjects an output of the imaging unit to A/D conversion. A backlight correction unit converts the tones of an image read by the A/D converter using a conversion characteristic selected differently according to a spatial position and at least increases the luminance level of a dark region of the image. An instruction unit instructs to start backlight correction. A control unit operates the backlight correction unit based on an instruction signal output from the instruction unit, and decreases an exposure light amount of the optical system by a predetermined amount.

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Haruo Yamashita et al., “Contrast-Gain Based Visual Tone Mapping for Digital Photo Prints” , The Journal of Imaging Science and Technology, vol. 50, No. 5, pp. 458-468 (2006).

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