Patent ID: 9077944
Filing Date: 2015-07-07
Classification: H04N

Abstract:
1. An image pickup device including an auxiliary light generation unit for emitting an auxiliary light during an image pickup operation, comprising: an image acquisition unit for obtaining an image of an object; a light source characteristic acquisition unit for obtaining a light source characteristic of the image pickup operation; a first white balance (WB) correction coefficient setting unit for setting, on the basis of the light source characteristic of an image pickup operation performed in an auxiliary light non-emission condition, a first WB correction coefficient for correcting a tint of an image captured in the auxiliary light non-emission condition to the tint of a peripheral light of the auxiliary light non-emission condition; a first WB correction unit for setting a target color by performing a first WB correction on an image data obtained in the image pickup operation performed in the auxiliary light non-emission condition based on the light source characteristic and the first WB correction coefficient, the target color based on image data stored in a target color frame memory; a second WB correction coefficient setting unit for setting a second WB correction coefficient on the basis of: (a) the target color and the light source characteristic of an image pickup operation performed in an auxiliary light emission condition, (b) a first average chromaticity value of a predetermined region in an image data having the target color, wherein the image data associated with the first average chromaticity value is obtained in the image pickup operation performed in the auxiliary light non-emission condition, and (c) a second average chromaticity value of the predetermined region in an image data obtained in the image pickup operation performed in the auxiliary light emission condition, wherein the second WB correction coefficient is for correcting the tint of an image captured in the auxiliary light emission condition to the tint of the auxiliary light non-emission condition; and an image processing unit for generating an image having the tint of the auxiliary light non-emission condition on the basis of the first WB correction coefficient and the second WB correction coefficient when the image pickup operation is performed in the auxiliary light emission condition.