Patent ID: 9251445
Filing Date: 2016-02-02
CPC Classification: G06K

Claim Text:
1. An image processing apparatus comprising: an acquisition unit that acquires image information having a plurality of pixels, each pixel having density information; a first detection unit that detects sub-scanning-direction boundary pixels in accordance with the image information, the sub-scanning-direction boundary pixels being located on a boundary extending in a density change direction from a high-density pixel area to a low-density pixel area having a density lower than the high-density pixel area in a preset sub-scanning direction; a first determination unit that determines whether or not a development-related defect occurs in a preset number of pixels downstream of the sub-scanning-direction boundary pixels in the sub-scanning direction, in accordance with the number of pixels in a high-density area located upstream of the sub-scanning-direction boundary pixels in the sub-scanning direction; a second detection unit that detects, in a case where a set of sub-scanning-direction boundary pixels among the sub-scanning-direction boundary pixels in which it is determined that a development-related defect occurs is arranged in a main scanning direction, an end pixel in the main scanning direction among the set of sub-scanning-direction boundary pixels; a second determination unit that determines whether or not each of the set of sub-scanning-direction boundary pixels arranged in the main scanning direction is close to the end pixel in the main scanning direction, by determining whether or not a distance between each of the set of sub-scanning-direction boundary pixels and the end pixel in the main scanning direction is within a preset value; a correction unit that corrects a density for the preset number of pixels downstream of the sub-scanning-direction boundary pixels in the sub-scanning direction, a transmitting unit that transmits the image information corrected by the correction unit to an image forming apparatus.