US 11,836,900 B2
Image processing apparatus
Chiaki Kaneko, Yokohama (JP); and Daiki Nakagawa, Tokyo (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jun. 30, 2022, as Appl. No. 17/854,040.
Application 17/854,040 is a division of application No. 17/086,674, filed on Nov. 2, 2020, granted, now 11,423,515.
Claims priority of application No. 2019-201585 (JP), filed on Nov. 6, 2019; application No. 2019-206348 (JP), filed on Nov. 14, 2019; and application No. 2019-211710 (JP), filed on Nov. 22, 2019.
Prior Publication US 2022/0343469 A1, Oct. 27, 2022
Int. Cl. G06K 9/40 (2006.01); G06T 5/00 (2006.01); G06T 7/70 (2017.01); G06T 7/60 (2017.01); G06T 7/50 (2017.01)
CPC G06T 5/002 (2013.01) [G06T 5/008 (2013.01); G06T 7/50 (2017.01); G06T 7/60 (2013.01); G06T 7/70 (2017.01); G06T 2207/30196 (2013.01)] 18 Claims
OG exemplary drawing
 
7. An image processing method comprising:
first generating a noise reduced image data obtained by performing noise reduction processing on an input image data;
second generating a high frequency emphasized image data in which a high frequency component in the input image data is emphasized;
performing, for each pixel in the high frequency emphasized image data, processing to restrict a pixel value of the pixel within a range set according to brightness of a subject at the pixel; and
third generating an output image data based on the noise reduced image data and the high frequency emphasized image data which has been processed by the performing.