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1) preparation install Photoshop CS2 or later, Greaycshop, USM2, and Noiseware. then set all noise levels of Noiseware profile 66.
2) resize at 360dpi
you can process 600dpi scan, but the quality of results isn't different than 360dpi so much. I'm resizing scans before any other processing. if scan is FM screening, then just bicubic resizing at 350~360 dpi. if it's AM, add gauss blur 0.5 before resizing.
3) denoise brights this process reduces noises on only brighter areas using luminance mask.
duplicate layer > Greycstration spoiler(-dt 20 -p 0.4 -a 0.4 -fast -alt) > Noiseware spoiler(noise level 0, reduction 100%, protection 10, enhancement 0, edge smoothing normal, highfreq -18, midfreq -16, lowfreq -16, verylow -19, others all 0 or 100%) > make a mask at the top layer > apply image (default) > levels 0,250, gamma 0.2 > flatten image.
4) denoise darks this process reduces noises on only darker areas using luminance mask.
duplicate layer > Noiseware/luminance 0 spoiler(noise level: luminance -20, noise level: color 0, reduction 100%, protection 10, enhancement 0, edge smoothing normal, highfreq 0, midfreq 0, lowfreq 0, verylow -10, others all 0 or 100%) > duplicate layer > set layer mode: darken > Noiseware/color 0 spoiler(noise level: luminance 0, noise level: color -20, reduction 100%, protection 10, enhancement 0, edge smoothing normal, highfreq +0, midfreq -10, lowfreq -10, verylow -15, others all 0 or 100%)spoiler(if scans are FM screening, reduce highfreq. if scans have paper texture, raise midfreq) > merge top 2 layers > Greycstration spoiler(-p 0.6 -a 0.5 -fast -alt) at the top layer > make a mask at the top layer > apply image (with inversion) > levels 0,230 > flatten image.
5) sharpen it's combination of weak Greyc & USM2. because pre-Greyc reduces side effects of USM2.
midzki
overview
1) preparation
install Photoshop CS2 or later, Greaycshop, USM2, and Noiseware. then set all noise levels of Noiseware profile 66.
2) resize at 360dpi
you can process 600dpi scan, but the quality of results isn't different than 360dpi so much. I'm resizing scans before any other processing. if scan is FM screening, then just bicubic resizing at 350~360 dpi. if it's AM, add gauss blur 0.5 before resizing.
3) denoise brights
this process reduces noises on only brighter areas using luminance mask.
duplicate layer > Greycstration spoiler(-dt 20 -p 0.4 -a 0.4 -fast -alt) > Noiseware spoiler(noise level 0, reduction 100%, protection 10, enhancement 0, edge smoothing normal, highfreq -18, midfreq -16, lowfreq -16, verylow -19, others all 0 or 100%) > make a mask at the top layer > apply image (default) > levels 0,250, gamma 0.2 > flatten image.
4) denoise darks
this process reduces noises on only darker areas using luminance mask.
duplicate layer > Noiseware/luminance 0 spoiler(noise level: luminance -20, noise level: color 0, reduction 100%, protection 10, enhancement 0, edge smoothing normal, highfreq 0, midfreq 0, lowfreq 0, verylow -10, others all 0 or 100%) > duplicate layer > set layer mode: darken > Noiseware/color 0 spoiler(noise level: luminance 0, noise level: color -20, reduction 100%, protection 10, enhancement 0, edge smoothing normal, highfreq +0, midfreq -10, lowfreq -10, verylow -15, others all 0 or 100%) spoiler(if scans are FM screening, reduce highfreq. if scans have paper texture, raise midfreq) > merge top 2 layers > Greycstration spoiler(-p 0.6 -a 0.5 -fast -alt) at the top layer > make a mask at the top layer > apply image (with inversion) > levels 0,230 > flatten image.
5) sharpen
it's combination of weak Greyc & USM2. because pre-Greyc reduces side effects of USM2.
Greycstration spoiler(-dt 10 -p 0.6 -alpha 0 -fast -alt) > USM2 spoilerRadius 1.5, amount+ 0.5, amount- 1.0, threshold 0.01, gamma 1.8, high~mid 1, shadow 0.5)
6) levels
adjust levels again changing 16bit colors. I can't change mode into 16bit before reached at this step, because of bad allocation ;_;
7) denoise surfaces
this process smooths surfaces using edge mask.
duplicate layer > Noiseware spoiler(same setting to the one of denoise brights process) > make a mask > apply image (default) > gamma 4 spoiler(raising gamma enhances edge levels on darks) > find edges > surface blur spoiler(radius 10, threshold 5) > levels 150,250
8) manual masking
edge masking of process 7) fails catching some details, thus I have to rewrite it manually.
[edited settings of NW a bit 2010/01/11]