US 12,131,504 B2
Suppression of clipping artifacts from color conversion
Gang Hua, Katy, TX (US); Mihir Narendra Mody, Bengaluru (IN); Niraj Nandan, Plano, TX (US); Shashank Dabral, Allen, TX (US); Rajasekhar Reddy Allu, Plano, TX (US); and Denis Roland Beaudoin, Rowlett, TX (US)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by Texas Instruments Incorporated, Dallas, TX (US)
Filed on Nov. 30, 2021, as Appl. No. 17/538,268.
Prior Publication US 2023/0169689 A1, Jun. 1, 2023
Int. Cl. G06K 9/00 (2022.01); G06T 1/20 (2006.01); G06T 7/90 (2017.01)
CPC G06T 7/90 (2017.01) [G06T 1/20 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/20208 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving input image data that includes values associated with a first channel and not a second channel;
receiving an offset value that indicates a range; and
generating values for the second channel, wherein generating the values for the second channel includes:
generating intermediate values for the second channel based on the values associated with the first channel;
clipping each of a first subset of the intermediate values that has a magnitude outside the range indicated by the offset value to zero to generate a clipped first subset of the intermediate values;
adding the offset value to each of a second subset of the intermediate values that has a magnitude within the range to generate a clipped second subset of the intermediate values; and
applying a correction function to the intermediate values including the clipped first and second subsets of the intermediate values based on the offset value to determine the values for the second channel.