US 7,499,083 B2
	Image sensing apparatus with white balance control and image sensing method therefor
Yoshiaki Honda, Kanagawa (Japan)
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan)
Filed on Dec. 30, 2004, as Appl. No. 11/27,373.
Claims priority of application No. 2004-003208 (JP), filed on Jan. 08, 2004.
Prior Publication US 2005/0151856 A1, Jul. 14, 2005
Int. Cl. H04N 9/73 (2006.01)

U.S. Cl. 348—224.1  [348/223.1; 348/229.1]

15 Claims

1. An image sensing apparatus comprising: light-emitting means for irradiating an object with light; input means for inputting flashing information of said light-emitting means; image sensing means, comprising a plurality of color filters with different spectral characteristics, for converting light from the object to obtain image sensing data; first white balance control data generation means for generating first white balance control data on the basis of first image sensing data obtained by image-sensing a first object by said image sensing means using said light-emitting means; second white balance control data generation means for generating second white balance control data obtained by correcting the first white balance control data, on the basis of a difference between a white balance gain corresponding to first flashing information of said light-emitting means when the first object is image-sensed and a white balance gain corresponding to second flashing information of said light-emitting means when a second object is to be photographed, the first flashing information and second flashing information being input from said input means; and white balance adjustment means for adjusting white balance of image sensing data obtained by image-sensing the second object, on the basis of the second white balance control data.