IMAGE EVALUATION DEVICE, IMAGE EVALUATION METHOD AND PROGRAM STORAGE MEDIUM
First Claim
1. An image evaluation device, comprising:
- a reading unit that reads a sample image included in a sample printout recognized as a non-defective printout and that reads an inspection object image included in an inspection object printout obtained by printing an image corresponding to the sample image on a recording medium using a printing device based on image data representing the image;
an extraction unit that extracts a line defect including a linear pattern formed in a specific direction from the inspection object image represented by inspection object image data, based on a difference value between sample image data obtained by reading the sample image and the inspection object image data; and
an evaluation unit that evaluates a visibility of the line defect extracted by the extraction unit.
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Accused Products
Abstract
An image evaluation device includes: a reading unit that reads a sample image included in a sample printout recognized as a non-defective printout and that reads an inspection object image included in an inspection object printout obtained by printing an image corresponding to the sample image on a recording medium using a printing device based on image data representing the image; an extraction unit that extracts a line defect including a linear pattern formed in a specific direction from the inspection object image represented by inspection object image data, based on a difference value between sample image data obtained by reading the sample image and the inspection object image data; and an evaluation unit that evaluates a visibility of the line defect extracted by the extraction unit.
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Citations
31 Claims
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1. An image evaluation device, comprising:
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a reading unit that reads a sample image included in a sample printout recognized as a non-defective printout and that reads an inspection object image included in an inspection object printout obtained by printing an image corresponding to the sample image on a recording medium using a printing device based on image data representing the image; an extraction unit that extracts a line defect including a linear pattern formed in a specific direction from the inspection object image represented by inspection object image data, based on a difference value between sample image data obtained by reading the sample image and the inspection object image data; and an evaluation unit that evaluates a visibility of the line defect extracted by the extraction unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An image evaluation method, comprising:
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reading a sample image included in a sample printout recognized as a non-defective printout and reading an inspection object image included in an inspection object printout obtained by printing an image corresponding to the sample image on a recording medium using a printing device based on image data representing the image; extracting a line defect including a linear pattern formed in a specific direction from the inspection object image represented by inspection object image data, based on a difference value between sample image data obtained by reading the sample image and the inspection object image data; and evaluating a visibility of the line defect that is extracted by the extracting.
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31. A non-transitory computer-readable storage medium storing a program that causes a computer to execute image evaluation processing, the image evaluation processing comprising:
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reading a sample image included in a sample printout recognized as a non-defective printout and reading an inspection object image included in an inspection object printout obtained by printing an image corresponding to the sample image on a recording medium using a printing device based on image data representing the image; extracting a line defect including a linear pattern formed in a specific direction from the inspection object image represented by inspection object image data, based on a difference value between sample image data obtained by reading the sample image and the inspection object image data; and evaluating a visibility of the line defect that is extracted by the extracting.
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Specification