US 12,229,942 B2
Image processing apparatus, image processing method, and medium
Takashi Ochiai, Tokyo (JP); and Hiroki Watabe, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 23, 2022, as Appl. No. 17/751,310.
Claims priority of application No. 2021-091747 (JP), filed on May 31, 2021.
Prior Publication US 2022/0383471 A1, Dec. 1, 2022
Int. Cl. G06T 7/00 (2017.01); G06T 7/73 (2017.01)
CPC G06T 7/001 (2013.01) [G06T 7/74 (2017.01); G06T 2207/10008 (2013.01); G06T 2207/30144 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An image processing apparatus, comprising:
one or more processors; and
at least one memory storing executable instructions, which when executed by the one or more processors, cause the image processing apparatus to perform operations comprising:
acquiring a read image obtained by reading a printed document; and
determining presence or absence of a streak included in the read image, by tracking a contour of the printed document from each of a plurality of points that are both end points of the read image in a direction orthogonal to a reading direction of the read image,
wherein, in the determining, presence or absence of the streak is determined by comparing a first apex of the contour obtained by the tracking from a first point included in the both end points with a second apex of the contour obtained by the tracking from a second point included in the both end points.