| 摘要 |
A printing system includes the following elements. An addition unit (102) creates additional image data having a specific attribute, to be added to original image data input from an external source, and adds the additional image data to the original image data so as to create document image data. An image forming unit (10) forms, on a recording medium (P), on the basis of the document image data, a document image including an original image associated with the original image data and an additional image associated with the additional image data. An image reader (70) reads the document image formed on the recording medium (P) by the image forming unit (10) so as to create read image data. A difference image creator (105) creates difference image data by calculating a difference between the original image data and the read image data. A canceling unit (106) corrects, on the basis of the specific attribute of the additional image data, the difference image data by canceling a difference generated due to the addition of the additional image data so as to create corrected difference image data. An inspection unit (303) performs inspection to find a defect of the original image included in the document image formed on the recording medium (P) by the image forming unit (10), on the basis of the corrected difference image data. .... 5i TII.Ii U 5. SETTING APPARATUS ORIGINAL IMAGE TRANSMITTER/ CREATOR RECEIVER |
