Patent ID: 7978198
Filing Date: 2011-07-12
Classification: G06F,H04N

Abstract:
1. An image data transfer method, comprising the steps of: (a) reading pixel data of a two-dimensional image stored in a first image storage and having a plurality of pixels, the position of each of the pixels being represented by coordinates of first and second directions; (b) writing the data transfer units read at step (a) in a temporary data storage where data is stored at a position designated by a combination of first and second addresses, the data transfer units being written in burst mode in a region of the temporary data storage in which the first addresses are consecutive while the second address is fixed; and (c) reading the data transfer units written in the temporary data storage from the region in which the first addresses are consecutive while the second address is fixed in burst mode and writing the read data transfer units in a second image storage, wherein the two-dimensional image has DX by DY data transfer units, where DX is a natural number representing the number of data transfer units in a line extending in the first direction and DY is a natural number representing the number of data transfer units in a line extending in the second direction, and if DX≧DY, then the pixel data is read by scanning data transfer units of the pixel data in the second direction where each of the data transfer units is formed by data of a predetermined number of pixels consecutive in the first direction.