Invention Grant
- Patent Title: Automatic white balancing for photography
- Patent Title (中): 自动白平衡摄影
-
Application No.: US12650202Application Date: 2009-12-30
-
Publication No.: US08698918B2Publication Date: 2014-04-15
- Inventor: Amnon Silverstein , Brian Cabral
- Applicant: Amnon Silverstein , Brian Cabral
- Applicant Address: US CA Santa Clara
- Assignee: Nvidia Corporation
- Current Assignee: Nvidia Corporation
- Current Assignee Address: US CA Santa Clara
- Main IPC: H04N9/73
- IPC: H04N9/73

Abstract:
Embodiments of the claimed subject matter are directed to methods for automatic white balancing in an image-capture device. In one embodiment, given an estimated illuminant color (e.g., derived from the Gray World method), a more optimal illuminant color can be found by projecting this point to a plot of common illuminants to determine the closest point on the plot of common illuminants. Once the closest point of the plot of common illuminants is derived, the actual image (e.g., pixel) data of the scene is adjusted by the value of the closest point on the plot of common illuminants so that the light is normalized for the scene.
Public/Granted literature
- US20110096190A1 AUTOMATIC WHITE BALANCING FOR PHOTOGRAPHY Public/Granted day:2011-04-28
Information query