Image test apparatus, image forming system and recording medium

An image test apparatus comprising:

• an image reader which reads paper on which an image is formed from an image formed surface side to acquire test image data including an entire region of the paper;
• and
• a hardware processor which detects a defect in the test image data by comparing the test image data acquired by the image reader with correct image data,
• wherein the hardware processor detects a defect in the test image data in a region where the test image data overlaps with the correct image data after aligning positions of the test image data and the correct image data by aligning positions of images to each other;
• wherein, after aligning the positions of the test image data and the correct image data by aligning the positions of the images to each other, in a case where there is a region where the test image data does not overlap with the correct image data, the hardware processor performs predetermined operation for notifying a user;
• and
• wherein the hardware processor performs the predetermined operation only in a case where an area of the region where the test image data does not overlap with the correct image data is equal to or greater than a predetermined amount.

A non-transitory computer readable recording medium storing a program causing a computer of an image test apparatus

• which includes an image reader which reads paper on which an image is formed from an image formed surface side to acquire test image data including an entire region of the paper, and
• which detects a defect in the test image data by comparing the test image data acquired by the image reader with correct image data, to perform
• after aligning positions of the test image data and the correct image data by aligning positions of images to each other, detecting a defect in the test image data in a region where the test image data overlaps with the correct image data;
• wherein, after aligning the positions of the test image data and the correct image data by aligning the positions of the images to each other, in a case where there is a region where the test image data does not overlap with the correct image data, detecting a defect in a region where the test image data does not overlap with the correct image data using a method different from a method for a region where the test image data overlaps with the correct image data.

A non-transitory computer readable recording medium storing a program causing a computer of an image test apparatus which includes an image reader which reads paper on which an image is formed from an image formed surface side to acquire test image data including an entire region of the paper, and

• which detects a defect in the test image data by comparing the test image data acquired by the image reader with correct image data, to perform
• detecting a defect in the test image data in a region where the test image data overlaps with the correct image data after aligning positions of the test image data and the correct image data by aligning positions of images to each other, and
• after aligning the positions of the test image data and the correct image data by aligning the positions of the images to each other, in a case where there is a region where the test image data does not overlap with the correct image data, performing predetermined operation for notifying a user,
• wherein the hardware processor performs the predetermined operation only in a case where an area of the region where the test image data does not overlap with the correct image data is equal to or greater than a predetermined amount.