US 11,889,240 B2
Image device and operation method of image device
Minkyu Sun, Suwon-si (KR); Se-Hwan Yun, Hwaseong-si (KR); and Geon Gi, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd.
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jul. 27, 2021, as Appl. No. 17/443,793.
Claims priority of application No. 10-2020-0168578 (KR), filed on Dec. 4, 2020.
Prior Publication US 2022/0182589 A1, Jun. 9, 2022
Int. Cl. H04N 9/64 (2023.01); G06T 7/80 (2017.01); G06T 5/40 (2006.01); G06T 3/40 (2006.01); G06T 5/50 (2006.01)
CPC H04N 9/646 (2013.01) [G06T 3/4038 (2013.01); G06T 5/40 (2013.01); G06T 5/50 (2013.01); G06T 7/80 (2017.01); G06T 2207/20021 (2013.01); G06T 2207/20224 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An imaging device comprising:
a pre-processing module configured to generate a first image by performing a binning operation based on a raw image in a first mode and to generate a second image by performing a remosaic operation based on the raw image in a second mode;
a calibration module configured to generate calibration data based on a first image associated with a first raw image and a second image associated with a second raw image, the calibration data including a code level difference of the first image and the second image for each of a plurality of colors by a grid unit; and
a compensation module configured to receive a second image associated with a third raw image, to generate a calibration image by decoding the calibration data, and to generate a compensated second image associated with the third raw image by summing the second image associated with the third raw image and the calibration image to compensate for a color tone difference between the first mode and the second mode by the grid unit,
wherein the calibration module is configured to compensate a code level difference due to the remosaic operation in the second mode by the grid unit, based on the calibration data, so that the color tone difference of a low-illuminance region of the second image associated with the third raw image is improved.