Inspection apparatus, inspection method, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorRiko MIURA
Life of this patent
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Abstract
The occurrence of an erroneous inspection is suppressed by preventing a failure of position adjustment by non-linear transformation. In position adjustment between an inspection image obtained by reading a printed material and a reference image, after performing position adjustment by linear transformation, only in a case where a certain condition is satisfied, position adjustment by non-linear transformation is further performed for the inspection image for which the position adjustment by linear transformation has been performed.
Claims12
An inspection apparatus for inspecting a printed material that is output from a printing apparatus, the inspection apparatus comprising:
- one or more memories storing instructions;
- and
- one or more processors executing the instructions to:
- perform position adjustment between an inspection image generated by reading the printed material and a reference image that is used as a reference in the inspection, wherein
- in the position adjustment:
- position adjustment by linear transformation is performed for the inspection image;
- and
- in a case where a certain condition is satisfied, position adjustment by non-linear transformation is performed for the inspection image obtained by performing the position adjustment by linear transformation.
An inspection method for inspecting a printed material that is output from a printing apparatus, the inspection method comprising the step of:
- performing position adjustment between an inspection image generated by reading the printed material and a reference image that is used as a reference in the inspection, wherein
- in the position adjustment:
- position adjustment by linear transformation is performed for the inspection image;
- and
- in a case where a certain condition is satisfied, position adjustment by non-linear transformation is performed for the inspection image obtained by performing the position adjustment by linear transformation.
A non-transitory computer readable storage medium storing a program for causing a computer to perform an inspection method for inspecting a printed material that is output from a printing apparatus, the inspection method comprising the step of:
- performing position adjustment between an inspection image generated by reading the printed material and a reference image that is used as a reference in the inspection, wherein
- in the position adjustment:
- position adjustment by linear transformation is performed for the inspection image;
- and
- in a case where a certain condition is satisfied, position adjustment by non-linear transformation is performed for the inspection image obtained by performing the position adjustment by linear transformation.
Dependencies are inferred from the claim text.