Patent ID: 9623670
Date: 2017-04-18
CPC Classifications: B41J,G06K,H04N

Claim:
1. An image processing apparatus adapted to inspect an image, the image processing apparatus comprising: an acquisition unit configured to acquire image data obtained by reading the image; a setting unit configured to set a division way for dividing the image data; a processing unit configured to divide the image data in accordance with the division way set by the setting unit, and perform a predetermined process on each of resulting division areas; and an extracting unit configured to extract a unique portion caused by a device to print the image from image data resulting from performing the predetermined process, wherein: the predetermined process includes an averaging process on each of division areas obtained by dividing the image data in accordance with the division way set by the setting unit, a quantization process for quantizing values obtained by the averaging process, and an addition process for adding values obtained by differentiating the division way of the image data in the averaging process and performing the quantization process, and the setting unit sets a first division way for the predetermined process for a first area that is associated with the device in occurrence position of the unique portion and a second division way for a second area other than the first area.