An image processing device includes a writing circuit to write image data to a first memory, a second memory with a capacity of lines, a coordinate generating circuit to generate coordinate information based on inclination information, a deviation calculating circuit to calculate a maximum deviation amount of the image data from the coordinate information, a division number calculating circuit to calculate a division number based on the number of the lines and the deviation amount, an address generating circuit to generate an address for reading each of divided areas of the image data from the first memory, a burst length calculating circuit to calculate a burst length based on the division number and a main scanning width of the image data, and a transferring circuit to read and burst-transfer the image data from the first memory to the second memory based on the address and the burst length.
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