jp2_channels access_channels( )
Java: Jp2_channels Access_channels( )
[Declared in "../apps/compressed_io/jp2.h"]
Returns an object which may be used to access information recorded in the JP2 "Component Mapping" and "Channel Definition" boxes. The information from both boxes is merged into a uniform set of channel mapping rules, accessed through the returned jp2_channels object.
Returns an empty interface until the conditions required for successful completion of read_header have been met.