Patent ID: 9723217
Date: 2017-08-01
CPC Classifications: H04N

Claim:
1. An imaging device that photographs a moving image, comprising: an imaging unit configured to repeatedly obtain image data of one frame in a first cycle having a rate corresponding to a frame rate, further divide a period of the one frame into a predetermined number of divided frames defining a second cycle so that each of the divided frames within the one frame has a same duration, and repeatedly output divided image data for each divided frame; a gain application section configured to detect object luminance and apply a gain to a plurality of pieces of divided image data output from the imaging unit; and a synthesis processing section configured to combine the plurality of pieces of divided image data, to which the gain is applied by the gain application section, to generate combined image data of one frame, wherein, when the plurality of pieces of divided image data is obtained in the imaging unit, the number of divided frames is not changed during the period of the one frame, and when the number of divided frames is changed for a next frame at the first cycle rate, the gain application section changes the gain so as to obtain substantially the same image output level in the next frame in order to suppress a change in brightness of the combined image data of the one frame and the combined image data of the next frame.