Patent ID: 8493469
Filing Date: 2013-07-23
Classification: H04N

Abstract:
1. An electronic device comprising: a flash source; a camera module with an image scanning element and a pre-determined white-balance routine that includes an initial limit region of a chromaticity chart, the initial limit region of the chromaticity chart overlying a portion of a blackbody radiation curve, the flash source having an optical spectrum lying outside the initial limit region of the chromaticity chart, the camera module being operable in an ambient light mode in which the image scanning element is controlled to capture and white-balance a succession of images, and in an artificial light source mode in which the image scanning element is controlled to capture and white-balance a single image; a storage containing a white-balance patch and color coordinates of points on the chromaticity chart; and a processor operable to retrieve the white-balance patch from the storage and to provide the white-balance patch to the camera module,