Patent ID: 7952622

Claim:
An imaging apparatus, comprising: an image sensor for converting imaging light obtained through an optical system into an imaging signal; an imaging signal processing unit for carrying out a nonlinear correction on the imaging signal obtained from the image sensor; a frame addition unit for adding a predetermined number of frames of the imaging signal processed by the imaging signal processing unit per frame; and a control unit for appropriately setting each of the correction characteristic of the nonlinear correction in the imaging signal processing unit in the case of carrying out no frame addition in the frame addition unit and the correction characteristic of the nonlinear correction in the imaging signal processing unit depending on the number of added frames in the case of carrying out a frame addition in the frame addition unit, wherein the imaging signal with the frames added in the frame addition unit or the imaging signal without the frames added in the frame addition unit is selectively output or recorded, wherein the imaging apparatus is able to perform normal imaging without frame addition and imaging with frame only by changing a gamma curve with an appropriate gamma curve that is gamma-corrected, wherein gamma correction can be attained by only changing the amplitude characteristic the time of correction.