An object of the present invention is to generate an image which is
prevented from being influenced by a movement while suppressing increase
in noise components. When a movement is detected during exposure of an
image capturing device to light, an image capturing apparatus stops the
exposure of the image capturing device and amplifies an image signal
obtained with the exposure, thereby compensating exposure shortage.
Luminance information is extracted from a captured image, and color
information is extracted from a live view image obtained at a timing
different from a timing at which the captured image is obtained. By
synthesizing the luminance information of the captured image and the
color information of the live view image, noise components included in
color information are reduced.