Patent ID: 8270737

Claim:
An image processing apparatus for correcting a dislocation of an image in a second direction wherein pixels are arranged in a first direction and in a second direction perpendicular to the first direction, the apparatus comprising: a shift amount calculation section which breaks down a correction amount of the image of each pixel in the second direction into a first shift amount with a unit having a size of a prescribed block in the second direction, a second shift amount with a unit of the pixel, the second shift amount being less than the size of the block in the second direction, and a third shift amount being less than the size of the pixel; a minimal shift section which shifts the image data of each pixel by the third shift amount in the second direction; a pixel unit shift section which shifts the image data of each pixel by the second shift amount in the second direction; and a block unit shift section which shifts the image data of each pixel by the first shift amount in the second direction, in the process of executing compression and storage processing of the image data in the unit of the block, and executing arranging processing of the image data on a memory with the unit of the block after reading-out the compressed image data from the memory and expanding the compressed image data.