A METHOD FOR ENABLING FILE FORMAT COMPATIBILITY

摘要

An expression which can be utilised to specify the functionality required for decoding and expanding a bitstream into image data is disclosed. The expression is preferably included in the overhead information for a bitstream. An image file structure is also disclosed. The file (800) comprises a number of elements (802 808) packed sequentially into a binary file. Elements early in the file contain header information (802) (ie. Overhead information) which can include information identifying the file type as well as information describing parameters of the image data contained in the file (800).