An object of the present invention is to obtain an image photographed with an image-sensing device using a flash, in which the brightness of the image of the subject of the photograph is proper. An integrated value of brightness of a photographed image is obtained; a weighted evaluation value is calculated; contrast of the photographed image is obtained; a gain of an image signal is obtained by using the evaluation value after which, a suppression gain, by which a value of suppressing the gain fluctuates according to the contrast, is obtained in order to correct the brightness of a photographed subject to the proper brightness; a correction gain for making final corrections to an image by using the gain and the suppression gain is calculated; and the image signal is amplified by a gain adjustment circuit, thereby correcting the photographed image.

 
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