US 12,003,685 B2
Image processing apparatus, control method, and non-transitory computer-readable medium
Jumpei Sakamoto, Sakai (JP); Akihito Yoshida, Sakai (JP); and Yasutaka Hirayama, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Feb. 5, 2023, as Appl. No. 18/105,844.
Claims priority of application No. 2022-017400 (JP), filed on Feb. 7, 2022.
Prior Publication US 2023/0254431 A1, Aug. 10, 2023
Int. Cl. H04N 1/393 (2006.01)
CPC H04N 1/393 (2013.01) 8 Claims
OG exemplary drawing
 
1. An image processing apparatus comprising:
an input device that inputs a document image; and
a controller, wherein:
the controller
removes a first streak from the image by a first method,
removes a second streak from the image by a second method that differs from the first method, and
executes crop processing on the image from which the first streak and the second streak have been removed,
in the first method, the controller detects, as the first streak, an edge near a parallel side, which is parallel to a primary scanning direction in the image, and removes the first streak, and
among pixels forming a row that includes the first streak detected near the parallel side, the controller further replaces at least one pixel included from the parallel side to an end portion of the document with another pixel and thereby removes the first streak.