US 9,811,890 B2
Method for obtaining at least one high dynamic range image, and corresponding computer program product, and electronic device
Laurent Blonde, Thorigne-Fouillard (FR); David Touze, Rennes (FR); and Valter Drazic, Betton (FR)
Assigned to THOMSON LICENSING, Issy les Moulineaux (FR)
Filed by THOMSON LICENSING, Issy de Moulineaux (FR)
Filed on Oct. 8, 2015, as Appl. No. 14/879,039.
Claims priority of application No. 14306603 (EP), filed on Oct. 10, 2014.
Prior Publication US 2016/0104270 A1, Apr. 14, 2016
Int. Cl. G06K 9/00 (2006.01); G06T 5/00 (2006.01); H04N 5/232 (2006.01); H04N 5/235 (2006.01); G06T 11/00 (2006.01); G06T 11/60 (2006.01); G06T 7/30 (2017.01)
CPC G06T 5/007 (2013.01) [G06T 7/30 (2017.01); G06T 11/001 (2013.01); G06T 11/60 (2013.01); H04N 5/2355 (2013.01); H04N 5/2356 (2013.01); H04N 5/23232 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/20208 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for obtaining at least one high dynamic range image comprising aligning at least two low dynamic range images, wherein said method for obtaining comprises:
obtaining a first low dynamic range image, said first low dynamic range image comprising several color components in a color space;
obtaining a second low dynamic range image in said color space, comprising, for only one component color, at least a part of pixels of said second low dynamic range image, defining a region, wherein a luminance value of a pixel in said region in said second low dynamic range image and a luminance value of a corresponding pixel in said region in said first low dynamic range image are close values; and
said aligning comprising matching features obtained from said only one component color of said first low dynamic range image and from said only one component color of said second low dynamic range image.