US 12,143,542 B2
Inspection apparatus, method of controlling the same, and storage medium
Reiji Misawa, Chiba (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jan. 19, 2023, as Appl. No. 18/098,753.
Claims priority of application No. 2022-010361 (JP), filed on Jan. 26, 2022.
Prior Publication US 2023/0239412 A1, Jul. 27, 2023
Int. Cl. H04N 1/00 (2006.01); G06K 15/02 (2006.01); G06T 7/00 (2017.01); H04N 1/409 (2006.01)
CPC H04N 1/00045 (2013.01) [G06K 15/027 (2013.01); G06T 7/001 (2013.01); H04N 1/00037 (2013.01); H04N 1/0097 (2013.01); H04N 1/4092 (2013.01); G06T 2207/30144 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An inspection apparatus for inspecting image data obtained by reading a sheet using a reference image of the image data, the inspection apparatus comprising:
one or more controllers including one or more processors and one or more memories, the one or more controllers being configured to:
obtain first image data by reading a sheet having lines printed thereon,
obtain second image data from print data of the lines
perform edge correction on the lines included in the second image data by applying a plurality of edge correction parameters being different from each other,
determine an edge correction parameter of the plurality of edge correction parameters that minimizes a difference between a density of the second image data subjected to the edge correction and a density of the first image data;
perform an edge correction on the reference image using the determined edge correction parameter; and
inspect image data obtained by reading a sheet of an inspection target using the reference image on which the edge correction has been performed.