Patent ID: 7379609

Claim:
An image processing method for converting image data between a raster format and a block format, the method comprising: providing image data including a luminance component and at least one chrominance component in the raster format; storing the image data in a single unified line buffer memory, the image data being stored in the order of 16 luminance components, 8 first chrominance components, and 8 second chrominance components, such that the image data is capable of being simultaneously read from and written to the single unified line buffer memory; and outputting the image data in a sequence of the block format in response to a common read/write address for the single unified line buffer, the common read/write address being synthesized based on a first anchor address, the first anchor address being stored in a block scan order in a first of a pair of address buffers with respect to an order of a second anchor address stored in a second of the pair of address buffers.