There is no standardized extension for codestream data because codestream data is not to be considered to be stored in files in the first place, though when done for testing purposes, the extension .jpc, .j2k or .j2c is commonly used.
There is no standardized extension for codestream data because codestream data is not to be considered to be stored in files in the first place though when done for testing purposes the extension jpc j2k or j2c is commonly used