IMAGE PROCESSING APPARATUS AND METHOD FOR DETECTING UNIQUE PORTIONS PERIODICALLY DISTRIBUTED IN A PRINTED IMAGE
Patent №
US 9,769,352
Granted
2017-09-19
Filed 2016
Owner
CANON KABUSHIKI KAISHA
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
15189319
An image processing apparatus for performing a process of detecting a unique portion that occurs periodically in an inspection target image, includes: a dividing unit for dividing a part area of the inspection target image into a plurality of division areas; an averaging unit for changing a phase of the plurality of division areas in the part area and averaging pixel values in each of the plurality of division areas in each of changed phases; an addition unit for adding averaged values in each of the plurality of division areas in each of changed phases; and a setting unit for, with respect to a period λ with which the unique portion of a detection target appears, setting a size S of each of the plurality of division areas in a direction in which the unique portion may appear with the period λ, so as to meet S<λ.
AI classification
Ownership
CANON KABUSHIKI KAISHA
assignment · 398850310
Assignors
YANAI, YUMI, HORI, SHINJIRO, SUWA, TETSUYA, KAGAWA, HIDETSUGU, ISHIKAWA, TOMOKAZU, TANAKA, WAKAKO, IKEDA, TOHRU
On an employer assignment, the assignors are typically the inventors.