Close
another way.
if the paper texture be hardly erased without overfiltering, just only erase screening & chrominance noise.
http://moe.imouto.org/post/show/70003
NI (amount High 25% L 25% others 100%) > Greyc ( -dt 30 -p 0.3 -a 0.5 -alpha 0 -sigma 3.0 )