US 12,069,381 B2
System and method to improve quality in under-display camera system with radially-increasing distortion
Yibo Xu, Plano, TX (US); and Hamid R. Sheikh, Allen, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 18, 2023, as Appl. No. 18/354,394.
Application 18/354,394 is a division of application No. 17/586,490, filed on Jan. 27, 2022, granted, now 11,792,535.
Claims priority of provisional application 63/231,594, filed on Aug. 10, 2021.
Prior Publication US 2023/0362496 A1, Nov. 9, 2023
Int. Cl. H04N 23/80 (2023.01); G06F 1/16 (2006.01); H04N 23/76 (2023.01); H04N 23/84 (2023.01)
CPC H04N 23/80 (2023.01) [H04N 23/76 (2023.01); H04N 23/84 (2023.01); G06F 1/1686 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a display;
an imaging system; and
at least one processor configured to:
obtain an image captured by the imaging system, the image comprising one or more frames;
perform multi-frame processing, image signal processing, and image processing on the image to produce a processed image; and
apply a chroma suppression to the processed image, wherein the chroma suppression is configured to reduce brightness and color saturation in one or more select areas within the processed image;
wherein, to apply the chroma suppression, the at least one processor is configured to:
calculate a Y channel and a saturation map of the processed image;
generate a Y channel mask configured to select dark areas in corners of the processed image;
generate a saturation (S) mask configured to select blue areas in the corners of the processed image;
modify a Y value in the Y channel and a saturation value in the saturation map for pixels that are selected by both the Y mask and the S mask; and
reduce the brightness and the color saturation in the dark areas and the blue areas in the corners of the processed image by combining the modified Y value and the modified saturation value to generate an output image.