AFAIK the artist or his estate owns the image rights even though you have the original in your possession.
just as owning the master tapes of a piece of music doesn't mean you have the publishing rights.
or just ignore me for being full of internet armchair bullshit theory™
there is the payback scheme administered by DACS
http://www.dacs.org.uk/index.php?m=4
AFAIK the artist or his estate owns the image rights even though you have the original in your possession.
just as owning the master tapes of a piece of music doesn't mean you have the publishing rights.
or just ignore me for being full of internet armchair bullshit theory™