Determination device, determination system, determination method, program, and storage medium

A determination device determining a goodness of an article in an image including a plurality of pixel units based on respectively comparing pixel values of the plurality of pixel units and a plurality of thresholds,

• the determination device repeatedly performing, after setting the plurality of thresholds respectively to initial values, a processing set including:
• first determination processing of using the plurality of thresholds to estimate a first abnormal region in a good-part image of a first article, and determining a goodness of the first article based on a feature of the first abnormal region;
• second determination processing of using the plurality of thresholds to estimate a second abnormal region in a defective-part image of a second article, and determining a goodness of the second article based on a feature of the second abnormal region;
• and
• relaxation processing of relaxing at least a portion of the plurality of thresholds when the first article is determined to be defective,
• the determination device causing a display device to display a first value indicating the feature of the first abnormal region, a second value indicating the feature of the second abnormal region, and a threshold for the first and second values each time the processing set is performed.

A determination method causing a computer to determine a goodness of an article in an image including a plurality of pixel units, the determination being based on respectively comparing pixel values of the plurality of pixel units and a plurality of thresholds,

• the determination method causing the computer to perform:
• first processing of setting the plurality of thresholds respectively to initial values;
• second processing of determining a goodness of an article in at least a portion of a plurality of good-part images based on the plurality of thresholds;
• and
• third processing of relaxing at least a portion of the plurality of thresholds when the article in not less than one of the plurality of good-part images is determined to be defective,
• the plurality of thresholds being adjusted by causing the computer to repeat the second processing and the third processing until the article is determined to be good for each of the plurality of good-part images in the second processing.

A non-transitory computer-readable storage medium storing a program, the program causing a computer to determine a goodness of an article in an image including a plurality of pixel units based on respectively comparing pixel values of the plurality of pixel units and a plurality of thresholds,

• the program causing the computer to perform:
• first processing of setting the plurality of thresholds respectively to initial values;
• second processing of determining a goodness of an article in at least a portion of a plurality of good-part images based on the plurality of thresholds;
• and
• third processing of relaxing at least a portion of the plurality of thresholds when the article in not less than one of the plurality of good-part images is determined to be defective,
• the plurality of thresholds being adjusted by causing the computer to repeat the second processing and the third processing until the article is determined to be good for each of the plurality of good-part images in the second processing.