how to clean (by removing) the paper texture from a scan ?

[Michael REMY]

hi,

when i scan some photos, my jpeg picture have a paper texture (i guess the scanner is too sharp, too accurate!).

So, once i open my picture in PSP, how can i remove it?
if there a such automatic "paper texture " remover plugin ?

My scan definition is always high because i do not want to miss a thing and keep all the details and afford me to re-print the picture in the future. (so i don't want to low the scanner dpi resolution to get a thumbnail or icon result definition !)

Any help shall be fine and appreciate ! any tutotrial too. Please do not forget to tel lthe PSP version you use and the path from menu to execute the commands.

Best Regards,

Mike

here an example of my last need :

[LeviFiction]

Have you tried the moire pattern removal filter? Adjust -> Add/Remove noise/ Moire Pattern Removal

[TimW]

I may be wrong but that looks like halftone dots from offset printing. Or it could possibly be the old silk texture from photos made in the 60's & 70's. Noise removal will help but will soften image detail some.

[Michael REMY]

I may be wrong but that looks like halftone dots from offset printing. Or it could possibly be the old silk texture from photos made in the 60's & 70's. Noise removal will help but will soften image detail some.

you right, 1985 printed cover album from CD.

i already tried the "Noise removal" but it produce horrible result with X8 on hi-resolution picture (like 3000x3000). there is too "white part-zone" betwwen the dots i guess...

my old release (before the psp X generation performed so much better, but i didn't have it anymore).

Have you tried the moire pattern removal filter? Adjust -> Add/Remove noise/ Moire Pattern Removal

i always try it too , but since many month, i did caught one single picture which can be really clean by this filter ! i guess the "moire pattern removal" only work on latest paper, not the old one (with strange shape-dot texture).

here anothe example i never manage to have good result :
http://i2.***/out/2012/09/21/5d ... 7170eb.jpg

[hartpaul]

As already suggested that is a result of the printing process for magazine and other photos on CDs album covers etc.
One way I found to get a smoother effect was to increase the size of the image by at least 400 %, then soften the image, apply a low level Gaussian blur and then resize down to the original size and sharpen.
My effort produced this:
http://i477.photobucket.com/albums/rr14 ... mk0adq.jpg

Is this what you are after?

[Jean-Luc]

It is not the paper texture.
It is the dots created by the printing system (offset).
Difficult to remove.
First, scan at 600 DPI.
Your image must be exactly straight (your black and white sample is shifted).
In PSP, resize 200 %.
Rotate 35, 45 and 60 degrees and test the following with each. Select the best result.
Apply, as Levifiction suggested, the Moire removal filter but set the value just to the first appearing of the blur (soften), no more.
Resize down 50 %.
Sharpen.

[photodrawken]

Removing these dot patterns is a natural for using a Fast Fourier Transform (FFT) plugin.

FFT can do amazing things with this type of pattern removal, and its advantage is that it retains the sharpness of the original image. Even if its result is not perfect, at the very least it can give you an excellent starting point for other de-noise/de-screen adjustments.

I'm not going to redo my FFT tutorial here, but here's the link to the FFT plugins:
http://www.retouchpro.com/forums/softwa ... post311209

This is the link to my tutorial for using FFT in PhotoLine:
http://www.pl32.com/forum3/viewtopic.ph ... 167#p29704
but the steps should be valid for any image editor, including PSP.

For your problematic image of Beverly Knight, this is how I modified the FFT red channel:

And the final result (after adding some final finessing with a Curves adjustment and slight De-Screening):

This is the link to the full-size image:
https://www.dropbox.com/s/d0fnnbue1l830 ... l.jpg?dl=0

[photodrawken]

Hey! Wait a minute -- you asked the same question last summer and received answers for this:
http://forum.corel.com/EN/viewtopic.php ... 19#p330789