US 12,244,978 B2
Purple-fringe correction method and purple-fringe correction device
Wenjuan Liu, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 25, 2021, as Appl. No. 17/509,729.
Claims priority of application No. 202111128211.X (CN), filed on Sep. 26, 2021.
Prior Publication US 2023/0093967 A1, Mar. 30, 2023
Int. Cl. H04N 9/64 (2023.01); G06T 7/44 (2017.01); H04N 1/58 (2006.01); H04N 25/61 (2023.01); H04N 25/611 (2023.01)
CPC H04N 9/646 (2013.01) [G06T 7/44 (2017.01); H04N 1/58 (2013.01); H04N 25/61 (2023.01); G06T 2207/20182 (2013.01); H04N 25/611 (2023.01)] 17 Claims
OG exemplary drawing
 
1. A purple-fringe correction method for correcting pixels of a purple-fringe area of an image, the purple-fringe area interposed between an overexposed area and a non-overexposed non-purple-fringe area of the image, comprising:
determining
a first distance from a first pixel of a plurality of pixels in the purple-fringe area to the overexposed area, and
a second distance from the first pixel to the non-overexposed non-purple-fringe area; and
correcting the first pixel based on a relationship between the first distance and the second distance,
wherein when the first distance of one first pixel of the plurality of pixels is the same as the first distance of another first pixel of the plurality of pixels and the second distance of the one first pixel is the different from the second distance of the other first pixel of the plurality of pixels, the one first pixel is corrected differently from the other first pixel; and/or
wherein when the first distance of the one first pixel is different from the first distance of the other first pixel and the second distance of the one first pixel is the same as the second distance of the other first pixel of the plurality of pixels, the one first pixel is corrected differently from the other first pixel.