Patent ID: 8026974

Claim:
An imaging apparatus that images an image with a solid-state imaging device comprising: an area defining section that defines an unnecessary image detection area, which may contain an unnecessary image, at a position along an outer edge of an imaged image obtained by the solid-state imaging device; a focus evaluation value calculating section that calculates a focus evaluation value, which indicates the focal degree, based on an image signal of the imaged image obtained through a gradually moved focus lens; a red component detecting section that calculates a first average red component level and a second average red component obtained by respectively averaging signal levels of red components in the unnecessary image detection area and a non-detection area which is an area excluding the unnecessary image detection area; an unnecessary image detection processing section that determines that the imaged image contains the unnecessary image if the focus evaluation value calculated based on an image signal in the unnecessary image detection area has a peak while the focus lens is moving and if a ratio of the first average red component level to the second average red component level is larger than a predetermined value; and a warning processing section that performs processing for warning a photographer of the fact that the unnecessary image is contained if it is determined.