An A/D converter 103 converts an analog electric signal made through analog signal processing in an analog signal processor (not illustrated) and output from the image sensor 102 into a digital electric signal (pixel signal), and outputs the pixel signal to a capture unit 104. The analog signal processor includes a Correlated Double Sampling (CDS) circuit, a nonlinear amplifier circuit, and the like for removing noise on a transmission line. The capture unit 104 determines an effective period and type of the pixel signal, and outputs the pixel signals of the A-image and the B-image to a digital signal processor 105, an object detecting unit 108, an image shift amount calculating unit 110, and an image stabilizing amount calculating unit 113.

The digital signal processor 105 performs addition processing between divided pixels for the A-image and the B-image input in the Bayer array, and performs digital signal processing represented by synchronization processing, gamma processing, and noise reduction processing. Image data to which the digital signal processing has been applied is converted into compressed image data represented by JPEG, and output to an external recording device 106 for recording. The technologies of the synchronization processing, the gamma processing, the noise reduction processing, and the JPEG compression are not directly related to this embodiment, and a description thereof will be omitted.

The object detecting unit 108 detects an object, adds object information to the captured image data (pixel signal), and outputs it to the focus detecting calculation area selecting unit 109 and the image stabilizing area selecting unit 112.