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Posted on 12/10/07 4:52:29 PM
katew
Virtual Virtuoso
Posts: 681

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Removing grain
I've got a few pictures which have this 'canvassy' effect. This one also has darker and lighter patches on the jacket. Any ideas as to how I can remove this so that the finish is even? I've tried despeckle and dust and scratches, but with no success.





Posted on 13/10/07 06:57:24 AM
vicho
Ingenious Inca
Posts: 248

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Re: Removing grain
hi katew
heres my attempt to fix it



Posted on 13/10/07 07:17:00 AM
vicho
Ingenious Inca
Posts: 248

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Re: Removing grain
it was cool experimenting with that pic!...
first i duplicated the background layer and set it to "Color Burn", duplicated it again but this time set it to "Lighten"
here comes the fun part, apply a "Levels" adjustment layer with these values>> slider black :94, slider grey: 1.07, slider white: 219 (my own formula )
now create a layer mask and start painting with black to make the layer in "Color Burn" mode reveals where desired...
cool


Posted on 13/10/07 11:51:32 AM
GKB
Magical Montagist
Posts: 4057

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Re: Removing grain
Hi Kate,

Try scanning the image at 400% then, in stages reduce the file using Image>Image Size in two or three increments to the file size that you want.

The image will be slightly softer but the texture should, hopefully, disappear.

This is another one of Katrin Eismann's techniques from her 'Photoshop Restortion & Retouching' book. I hope she is going to send me royalties on this!

Posted on 13/10/07 4:02:29 PM
katew
Virtual Virtuoso
Posts: 681

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Re: Removing grain
Vicho, I can't see your picture. I'm having a go at your method, but I'm getting mixed up with the layer order and which layer to apply the adjustment layer and the mask to. Can you help? Thanks.

Gordon, I haven't got the original image, but that's a great idea (which I never thought of!) for future ones! I must treat myself to the Katrin Eismann book - it sounds like a 'must have'!

Posted on 13/10/07 7:09:42 PM
vicho
Ingenious Inca
Posts: 248

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Re: Removing grain
sure kate!
i forgot to mention a couple of things, well
...first you duplicate your background layer, letīs call it copy 1, change the layer blending mode to "Color Burn", duplicate it again and we have copy 2 now, change this layer to "Lighten" mode...there are three visible layers now>> bottom layer(background), middle layer (color burn) and top layer (lighten)...

select layer "copy 2" (lighten) and apply a "Levels" adjustment layer with these values>> slider black :94, slider grey: 1.07, slider white: 219

...so far the picture has a lot more contrast but still the canvassy effect is there, did you see what the picture looked like when you change the mode to Color burn? it was very "black" there was barely any of the previous noise...so letīs recover some of that...

select the top layer (copy 2, that already has the adjustment layer), create a layer mask and start painting with black in those areas where the noise is too strong...i wouldnīt suggest painting the face to get rid of the noise, instead apply Despeckle twice and..thatīs it!
hope it helps


Posted on 13/10/07 7:12:40 PM
vicho
Ingenious Inca
Posts: 248

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Re: Removing grain
hereīs my layers


screencap


Posted on 13/10/07 7:56:18 PM
katew
Virtual Virtuoso
Posts: 681

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Re: Removing grain
Thanks Vicho! It's a little dark, but it works quite well.

Posted on 20/10/07 2:22:34 PM
Dek_101
Apocalyptic Artisan
Posts: 175

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Removing grain
Hi Katew ... Must say this is not the easiest picture to work on ... you've certainly got your work cut out trying to solve the noise problem as well as retaining what little detail there is. Anyway, it looked like a challenge so I thought I'd have a go.
I found that most of the 'one click' filters I tried just took away too much detail or just made the picture too dark.
My 'solution' involved a lot of dodge and burn to try and pick out some detail, followed by heavy use of the smudge tool to get rid of the noise.
For this picture I used the smudge tool with a very small brush (3px) and low strength (about 20%).
It's very long winded and still came out a little darker than I would have liked but I think you can get some pleasing results if you have the patience.


Posted on 20/10/07 2:24:51 PM
Dek_101
Apocalyptic Artisan
Posts: 175

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Removing grain


Posted on 20/10/07 5:00:48 PM
katew
Virtual Virtuoso
Posts: 681

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Re: Removing grain
Thanks Dek, you've done a brilliant job! I'll have a go at that. Contrast etc isn't a problem - I've got lots of fancy tricks for getting the levels right on a 'spot' basis, but that grain was driving me mad!
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