US 12,445,738 B2
Image processing device and image processing method
Jun Hyeok Choi, Icheon-si (KR); and Dae Hyun Lee, Icheon-si (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Apr. 10, 2023, as Appl. No. 18/298,242.
Claims priority of application No. 10-2022-0155574 (KR), filed on Nov. 18, 2022.
Prior Publication US 2024/0171866 A1, May 23, 2024
Int. Cl. H04N 23/84 (2023.01); H04N 23/81 (2023.01); H04N 25/10 (2023.01); H04N 25/62 (2023.01)
CPC H04N 23/84 (2023.01) [H04N 23/81 (2023.01); H04N 23/843 (2023.01); H04N 25/10 (2023.01); H04N 25/62 (2023.01)] 17 Claims
OG exemplary drawing
 
1. An image processing device comprising:
a memory configured to store reference color ratios and crosstalk values of each of light source images acquired by sensing light sources having different wavelengths; and
a processor configured to receive an image including a plurality of regions each including outer pixel values and inner pixel values of the same color, and correct the outer pixel values or the inner pixel values by using differences between the respective reference color ratios and a color ratio of the image as weights of the crosstalk values,
wherein the processor includes a color ratio operator configured to acquire, as the color ratio, a ratio value of an average value of pixel values of a first color, which are included in a selected region among the plurality of regions and an average value of pixel values of a second color, which are included in a peripheral region of the selected region.