Patent ID: 8237982

Claim:
An image processing apparatus comprising: a storage unit; an exposure unit configured to irradiate a photosensitive member with a beam according to image data; an input unit configured to input image data on a line-by-line basis in a first direction of an image to write the image data in the storage unit; a setting unit configured to set a writing start address for each line of the image data input by the input unit, the writing start address being based on information for correcting distortion of a scanning line created by the beam; a correction unit configured to read the image data input by the input unit from the storage unit on a line-by-line basis in a second direction orthogonal to the first direction of the image, and execute correction processing to write the image data in the storage unit from the writing start address set by the setting unit on a line-by-line basis in the second direction of the image; an output unit configured to read the image data corrected by the correction unit from the storage unit on a line-by-line basis in the first direction of the image to output the image data; and a control unit configured to control the exposure unit to irradiate a photosensitive member with a beam according to the image data output by the output unit.