Inspecting device, method for changing threshold, and computer-readable storage medium
AssigneeRicoh Company, Ltd.
InventorTakako Shijoh
Life of this patent
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Abstract
An inspecting device includes a read image acquirer configured to acquire a first read image that is obtained by reading a printed matter; a reference image generator configured to generate a reference image based on a source image from which the printed matter has been generated; an inspector configured to inspect the printed matter based on threshold information containing one or more types of thresholds and based on a difference image indicating a difference between the first read image and the reference image; an identifier configured to identify, on the printed matter, an area having a discrepancy between an inspection result and a result of visual check by a user; and a changer configured to change the threshold information to resolve the discrepancy in the area.
Claims9
An inspecting device comprising:
- a read image acquirer configured to acquire a first read image that is obtained by reading a printed matter;
- a reference image generator configured to generate a reference image based on a source image from which the printed matter has been generated;
- an inspector configured to inspect the printed matter based on threshold information containing one or more types of thresholds and based on a difference image indicating a difference between the first read image and the reference image;
- an identifier configured to identify, on the printed matter, an area having a discrepancy between an inspection result and a result of visual check by a user;
- and
- a changer configured to change the threshold information to resolve the discrepancy in the area, wherein
- the read image acquirer further acquires a second read image that is obtained by reading the printed matter on which the area is specified,
- the identifier identifies the area based on the second read image,
- the area is specified by a symbol assigned to the printed matter, and
- the identifier detects the symbol on the second read image and identifies the area based on the symbol.
A method for changing a threshold, comprising:
- acquiring a read image that is obtained by reading a printed matter;
- generating a reference image based on a source image from which the printed matter has been generated;
- inspecting the printed matter based on threshold information containing one or more types of thresholds and based on a difference image indicating a difference between the read image and the reference image;
- identifying, on the printed matter, an area having a discrepancy between an inspection result and a result of visual check by a user, by:
- acquiring a second read image that is obtained by reading the printed matter on which the area is specified;
- identifying the area based on the second read image, wherein the area is specified by a symbol assigned to the printed matter;
- and
- detecting the symbol on the second read image and identifying the area based on the symbol;
- and
- changing the threshold information to resolve the discrepancy in the area.
A non-transitory computer-readable storage medium with an executable program stored thereon and executed by a computer, wherein the program instructs the computer to perform:
- acquiring a read image that is obtained by reading a printed matter;
- generating a reference image based on a source image from which the printed matter has been generated;
- inspecting the printed matter based on threshold information containing one or more types of thresholds and based on a difference image indicating a difference between the read image and the reference image;
- identifying, on the printed matter, an area having a discrepancy between an inspection result and a result of visual check by a user, by:
- acquiring a second read image that is obtained by reading the printed matter on which the area is specified;
- identifying the area based on the second read image, wherein the area is specified by a symbol assigned to the printed matter;
- and
- detecting the symbol on the second read image and identifying the area based on the symbol;
- and
- changing the threshold information to resolve the discrepancy in the area.
Dependencies are inferred from the claim text.