Patent ID: 7342610

Claim:
A method of controlling an image sensing apparatus, which has an image sensor, a flash light used to illuminate an object with light, and an image sensing instruction unit, comprising: storing a first image sensed by the image sensor in a storage device; sensing a second image by the image sensor while causing the flash light to emit light in response to an image sensing designation by the image sensing instruction unit; calculating a brightness of the first image and a brightness of the second image; calculating a color temperature of light illuminated when sensing the second image on the basis of color temperature of external light illuminated when sensing the first image, the brightness of the first image and the brightness of the second image; performing white balance processing for the second image on the basis of the color temperature of the second image; and outputting the white-balance-processed second image as a sensed image sensed by the image sensor in response to the image sensing designation of the image sensing instruction unit, wherein the first image is sensed by the image sensor in a period between the image sensing designation and the emission of the flash light.