At the moment I have a whole 11 page Mitsumi Misato scan that I have recently scanned and the whole 11 pages are filled with paper textures.

These annoying paper texture are terribly hard to filter out and I was wondering if anyone had any advices on how to go about doing this.

Currently i'm using these guys advices for it atm - http://photo.net/digital-darkroom-forum/00Bshw

It's for photos but basically the process is the same.

For this one, post #63540 will be our guiene pig
--

Currently i'm only using Photoshop CS2 as my program and every filter i've used is not effectively filtering the paper texture to a smooth finish and preserving enough detail.

Any help with this? I'm sure Imbri would be also very appealed to this topic since he tired it on that recent misato image too :)

So this I went around the internet looking for techniques and programs to help me.

It seem that Neat Image / photoshop plugin was one of the most popular so I tried that.

Here's what I got. The filtering is actually a little extreme but it works well.

ex. - http://img.photobucket.com/albums/v639/aoie_emesai/test_206.jpg

I'd reccomend Noise Ninja for this kind of stuff..works very well even with hard filtering. That's what i use to kill texture, cloth texture in books, dakimakuras etc. do 1-2 passes with NN then surface blur.

for reference post #56495 was bad textured paper.

Syao, do do you the original? I'd like to see it. For reference sake.

Try NN or NI to onlly reduce surface noises (not all), then apply Surface Blur (or Selective Gaussian Blur) 1~2px. and use Greycstoration at the final processing ;)

As kiowa said on another topic, NN & NI depend on thresholds which profiled by the image, and the result is bit incongruent in my eyes.
so I always use Greyc at the final processing..

I'll talk the specifics on IRC so I can get better responses.

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 )

Still learning to use that GreyC. Trying to figure out which variable is which.

Hum... i'll try that. But as the perfectionist I am, i'll probably go crazy just doing it leaving it like that...

then refilter it.



the 2nd image was added a layermask copied from greyscale of the layer after filtered.



this greyscale mask with invertion prevents from edge modification, bluuring textures on brighter area & Unsharpmask halo effects.

I've been doing selective filtering at the moment using the pen tool to individually select the more detail intensive areas and filtering around them.

I'll test out the layermask options and see what happens.

midzki: That's pretty nice..but i'd personally mask that emblem on her shoulder..the detail loss is pretty evident there.

syaoran-kun said:
midzki: That's pretty nice..but i'd personally mask that emblem on her shoulder..the detail loss is pretty evident there.

yeah. in this case, paint the emblem with black on that mask. no need to do other layer work :)

Paper texture noise mainly exists in low and medium frequency range. I recommend Neatimage for this sort of work because it can handle different frequency ranges separately.

For extremely heavy texture, I usually first max out everything in filter settings. This should make image blurred, eliminating all noise and detail. Then I'll reduce noise threshold and find out the point at which noise begins to emerge. At last I reduce filtering strength trying to strike a balance between detail and cleanness.

Same, I prefer Neatimage over Noise Ninja, which sayo likes to use.

So in comparison to post #90505

Just the Chrominance Processed and very little Lumianace.

Image #71

-- I need to get GreyCstoration working >.<

pool #1047 was scanned form textured paper doujinshi :p
it can be erased by darken only neatimage & other some technique.

It's pretty overfiltered, though. It would destroy more detailed images...

petopeto said:
It's pretty overfiltered, though. It would destroy more detailed images...

It mustn't work well for tinkle, tsubasu's frilled images, but it'll work pretty well for simple vector like images

NI's very low freq has a problem of modifying edges, so I think edge mask may help to prevent overfiltering a bit, but I don't know good edge detection tool on PS

the difference of single light scan & twin lights scan taken by Epson GT x820

The single light scan has a red hue, ewww >.<

Yeah can't see a big difference if not for the red hue..at least at 100% zoom.

syaoran-kun said:
Yeah can't see a big difference if not for the red hue..at least at 100% zoom.

it's because of inline image's resizing.
the original sized scans have big difference (at least in my eyes)

aoie_emesai said:
The single light scan has a red hue, ewww >.<

Just turning off one light causes huge hue shift.
it suggests us that scanner's colors are very sensitive, and little hope to get natural colors on default profiles.

I believe human's naked eyes are superior than static machine's data

post #102381

In this poor moeoh paper, first I reduced paper_texture with darken filtering, then erased remains with darken smudge tool with a pen tablet.

If you set mode darken on smudge tool, it can only erase white dusts on darks without overkilling texture.

I didn't tried darken clone tool, but it may also work well.