Eric Stevens
It may be for your definition of 'reversible' but it is not so in the sense of the standard meaning of 'reversible process'.

nospam
i never said 'reversible process'.

Sandman
But you could have, and nothing would have changed. Adding the word "process" doesn't change anything. It's not like there's only one valid way to interprete "reversible process" in relation to image processing.

nospam
they're using the term process to mean the mathematical transform itself.

Sandman
That's how they *want* to use it, and that's the only way Floyd *knows* how to use it since he has very rudimentary tools and his only chance to reverse a process is to counteract it with another process.

Serious photographers have used more modern tools for decades that doesn't hinge on this primitive way to deal with image processing. Some people are stuck in the caves, still.

Eric Stevens
I don't know whether to laugh or cry ....