Patent ID: 8026976
Filing Date: 2011-09-27
Classification: G06K,H04N

Abstract:
1. A digital camera, comprising: an imaging unit for generating image data representing a subject; a flash device for emitting a flash; a face region extraction unit for detecting a face included in the image data generated by the imaging unit, and outputting region information that indicates a region corresponding to the face; and a flash control unit for controlling emission amount of the flash using the region information outputted from the face region extraction unit, the flash control unit including: a first calculation means for performing a calculation on the image data generated by the imaging unit without using the region information outputted from the face region extraction unit to obtain a provisional adequate value Cn for the emission amount; a second calculation means for performing a calculation on the image data generated by the imaging unit using the region information outputted from the face region extraction unit to obtain a provisional adequate value Cf for the emission amount; and an emission amount determination means for determining an adequate emission amount Ch of the flash by performing an adjustment using the provisional adequate value Cn supplied from the first calculation means and provisional adequate value Cf supplied from the second calculation means as reference values, wherein: the flash control unit further comprises a parameter storage means for storing a variable parameter that indicates an influence of the provisional adequate value Cf in the adjustment; and the emission amount determination means calculates an average value of the provisional adequate value Cn supplied from the first calculation means, and the provisional adequate value Cf supplied from the second calculation means, in which the influence of the provisional adequate value Cf on the calculation result varies according to the value of the parameter stored in the parameter storage means.