Patent ID: 8441701

Claim:
An image processing apparatus for performing an edge intensifying processing of an image, the image processing apparatus comprising: an obtaining unit configured to obtain image data generated by optically reading a document, the image data corresponding to respective pixels aligned in a main scanning direction and a sub-scanning direction perpendicular to the main scanning direction; a determination unit configured to determine an edge direction of an image; a setting unit configured to set an intensity of the edge intensifying processing based on the image data and an intensity of processing determined corresponding to a difference between resolution in the main scanning direction and resolution in the sub-scanning direction; and a processing unit configured to perform the edge intensifying processing of an image according to the intensity set by the setting unit, wherein, in response to the resolution of the image data being higher in the sub-scanning direction than in the main scanning direction, the setting unit sets a higher intensity of the edge intensifying processing in response to the edge direction being along the sub-scanning direction than in response to the edge direction being along the main scanning direction, wherein the setting unit sets the intensity of processing according to a result of comparing a variation amount of the image data in the edge direction with a threshold, and wherein the setting unit sets the threshold such that the intensity of the edge intensifying processing varies according to the variation amount in an alignment direction of pixels.