Patent ID: 8824814

Claim:
A pixel data decompression method, applicable to an image processing device, for decompressing a frame, the pixel data decompression method comprising: (a) setting a parameter N; (b) loading a line start array comprising a plurality of memory address fields corresponding to a plurality of to-be-decompressed blocks of the frame; (c) reading a memory address field of a current block from the line start array; (d) reading and decompressing an i th pixel line of the current block according to the memory address field of the current block, wherein the i th pixel line of the current block comprises a portion of an N th pixel line of the frame, and i is 0 or a positive integer; (e) updating the memory address field of the current block of the line start array as a memory storage address of an (i+p) th pixel line of the current block, wherein p is a positive integer; (f) reading a memory address field of a next block from the line start array if compression of the N th pixel line of the frame is not completed; (g) repeating the above steps (d)˜(f) until decompression of the N th pixel line of the frame is completed; (h) updating the parameter N; and (i) repeating the above steps (b)˜(h) until decompression of the frame is completed.