Image inspecting device, image forming system, and computer program product

An image forming system comprising:

• an image forming unit configured to output an image formation on a recording medium;
• an image reading unit configured to generate a read image by reading an image formed on the recording medium;
• a read image acquisition unit configured to acquire the read image;
• a reference image generation unit configured to generate a reference image based on print data, the print data being a generation source of the image formed on the recording medium;
• an image inspection unit configured to inspect the read image based on threshold information including one or more types of thresholds and a difference image indicating a difference between the read image and the reference image to specify a defect portion on the read image;
• and
• a screen information generation unit configured to generate and output threshold adjustment screen information including a threshold image indicating each value of the one or more types of thresholds constituting the threshold information and an inspection result image indicating an inspection result of a partial read image of the defect portion on the read image, wherein
• when an adjustment input of the threshold information is performed for adjusting at least one of the one or more types of thresholds, the image inspection unit reinspects the partial read image based on adjusted threshold information and a partial difference image indicating a difference between a partial read image of the defect portion on the read image and a partial reference image of a portion corresponding to the defect portion on the reference image,
• the screen information generation unit generates and outputs threshold adjustment result screen information including a threshold image indicating each value of the one or more types of thresholds constituting the adjusted threshold information and a reinspection result image indicating a reinspection result of the partial read image using the adjusted threshold information, and
• the image forming system further comprises a threshold information changing unit configured to change the threshold information to the adjusted threshold information based on a threshold information change input for changing the threshold information to the adjusted threshold information.

A computer program product comprising a non-transitory computer-readable medium containing an information processing program, the program causing a computer to perform:

• acquiring a read image obtained by reading an image formed by an image formation output;
• generating a reference image based on print data, the print data being a generation source of the image formed by the image formation output;
• inspecting the read image based on threshold information including one or more types of thresholds and a difference image indicating a difference between the read image and the reference image, to specify a defect portion on the read image;
• generating and outputting threshold adjustment screen information including a threshold image indicating each value of the one or more types of thresholds constituting the threshold information and an inspection result image indicating an inspection result of a partial read image of the defect portion on the read image;
• when an adjustment input of the threshold information is performed for adjusting at least one value of the one or more types of thresholds, reinspecting the partial read image based on adjusted threshold information and a partial difference image indicating a difference between a partial read image of the defect portion on the read image and a partial reference image of a portion corresponding to the defect portion on the reference image;
• generating and outputting threshold adjustment result screen information including a threshold image indicating each value of the one or more types of thresholds constituting the adjusted threshold information and a reinspection result image indicating a reinspection result of the partial read image using the adjusted threshold information;
• and
• changing the threshold information to the adjusted threshold information based on a threshold information change input for changing the threshold information to the adjusted threshold information.