Patent ID: 8724174

Claim:
An image processing apparatus comprising: an edge-portion detector that detects a pixel of an edge portion by determining whether or not each of pixels constituting image data which has been input is a pixel which is included in the edge portion; an edge-width detector that detects an edge width of the edge portion by detecting a number of continuous pixels of the edge portion arranged in a horizontal or vertical direction, the continuous pixels having the same value as one another; and a density correction unit that increases, in response to the edge-width detector detecting that the number of continuous pixels of a first edge portion is smaller than a value which is set in advance, a density of continuous pixels of the first edge portion without changing an edge width of the first edge portion so that the density of continuous pixels of the first edge portion is higher than a density of continuous pixels of a second edge portion, wherein the number of continuous pixels of the second edge portion is larger than the value which is set in advance.