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 Post subject: Selenium Tone
PostPosted: Thu Sep 22, 2011 11:56 am  (#1) 
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Location: Dartmouth, Nova Scotia
GIMP Version: 2.6.11
Operating System: Windows
OS Version: XP - SP3
GIMP Experience: Beginner Level



Hello,
I now have a Selenium tone that I can work with, thanks to a kind soul who found it on PS for me. What I need now is help in adapting it to Gimp, the PS preset is found at this addy: http://www.elementsvillage.com/forums/s ... hp?t=67372 . Would someone who is knowledgeable with Gimp explain how I can adapt this to Gimp, please? The other thing is I also need the ability to adjust the colors, using the curves in the preset, as it is not quite as subtle as I want it. Using duotones in PS and adjusting them is quite simple, hopefully, Gimp will be the same. Thank you for any and all help.

Tim

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Best regards,

Tim

The measure of a man is not how many times he gets knocked down...but how many times he gets back up.


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 Post subject: Re: Selenium Tone
PostPosted: Thu Sep 22, 2011 3:10 pm  (#2) 
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As I don't know what the P$ pre-set actually does, I'm guessing that it's somewhat similar to a split tone process.

Meet The Gimp did an episode on making making split-tones: http://meetthegimp.org/episode-039-diff ... ar-future/

so I used a similar process using the colours you posted a link to and made this:
Image
Although it's a duo-tone, rather than the quad-tone your colours imply. I felt the grey and black just made it look too washed-out.

And just for the fun of it I tried doing something from a RAW file in Photivo:
Image
Which is definitely a duo-tone.

Kevin


Last edited by paynekj on Thu Sep 22, 2011 4:00 pm, edited 1 time in total.

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 Post subject: Re: Selenium Tone
PostPosted: Thu Sep 22, 2011 3:28 pm  (#3) 
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i may have a selenium curve preset for gimp but i am not sure if is for the same pourpose, if i remember well was to emulate
ancient photographic printing tecnique (for BW print on self made paper)

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My 3D Gallery on Deviantart http://photocomix2.deviantart.com/
Main gallery http://www.flickriver.com/photos/photocomix-mandala/
Mandala and simmetry http://www.flickriver.com/photos/photocomix_mandala/

Image

Mrs Wilbress


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 Post subject: Re: Selenium Tone
PostPosted: Thu Sep 22, 2011 6:51 pm  (#4) 
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Location: Dartmouth, Nova Scotia
Once I have the ability to do this with Gimp I will post an image of mine. I normally don't post my images but will make an exception so you can see how my selenium tone looks like.
My computer abilities are not very good but once I have the workflow down it should be fine. Thank you for your help.

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Best regards,

Tim

The measure of a man is not how many times he gets knocked down...but how many times he gets back up.


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 Post subject: Re: Selenium Tone
PostPosted: Thu Sep 22, 2011 11:53 pm  (#5) 
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Location: "Looking for my eraser" =P
Selenium toning was originally devised to increase print permanence and reduce fading.

I wish i could remember how i did most of this.
I remembered!
This turned out really cool though. :)

Image

Open the original image
Duplicate it
Desaturate the duplicate with luminosity checked.
Now duplicate that desaturated layer 3 times.
You should now have 4 desaturated layers and the original.
Create 4 new transparent layers - 1 above each desaturated layer.
first layer color - 292524
second layer color -7c2849
third layer color - bab17a
fourth layer color - 6cbfe9

Place each color layer in overlay mode.
Now you have to turn off all but 2 layers at a time and merge visible.
merge 1 desaturated layer with it's color layer above it.

Then you will have 4 layers all merged and one original.
NOW -
top layer mode - set to lighten only
2nd layer mode set to - Darken only
3rd layer mode set to - Value
4th and final layer mode set to - Lighten only
Original of course is set to normal mode on the bottom.

Save the image

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Image
____________
OK, . . . . so what's the speed of dark?


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 Post subject: Re: Selenium Tone
PostPosted: Fri Sep 23, 2011 1:35 am  (#6) 
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Location: "Looking for my eraser" =P
Here is another method for doing it with curves

Open a black & white image or create one.
Duplicate it.

On the top layer, open Colors/Curves.
The red - set points at the following: 61/90, 112/136 and, 208/213
The green - set points at the following: 31/32, 141/129 and, 193/191
The blue - set points at the following: 28/28, 142/129, 193/191

You can fine tune with the value selection.Or just click ok and play with Colors/Brightness and contrast.

My image results and a image example of curves positioning.
Image


Image

Download the XCF here (29 mb)
http://download87.mediafire.com/hgcpiwj ... nium-2.xcf

I also perma-linked it to my Twitter account here
http://twitter.com/#!/gimprocks

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Image
____________
OK, . . . . so what's the speed of dark?


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 Post subject: Re: Selenium Tone
PostPosted: Fri Sep 23, 2011 6:26 am  (#7) 
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Posts: 532
I tried the quad colours from the OP reference without much success.

Then tried g'mic B&W recolorize and second attempt is http://i.imgur.com/mTP5i.jpg

worth playing around with.

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Image


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 Post subject: Re: Selenium Tone
PostPosted: Fri Sep 23, 2011 8:09 am  (#8) 
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Posts: 25
Location: Dartmouth, Nova Scotia
Thank you everyone for your suggestions and help, I appreciate it very much.

Rod, thank you for the download, my computer skills aren't very good, where do I put the xcf file...in plug-ins? With PS, using their duotone presets was easy as was the tweaking of them if necessary. Once I get a good workflow going in Gimp, hopefully, this will be easy too.
At the moment I am working on a B&W Selenium workflow as you can see plus a workflow for preparing colored images to be placed on my website, converted to B&W or changed to photo-art. Thanks to you I think I have a handle on the B&W workflow, and I have a crude workflow for the color although it needs refining. The last segment, photo-art, has not been dealt with in any meaningful way as yet. I have PainterX as well as PE4 for the photo conversion which will be automatic painting with input from me. As you can see I have a good deal of work in front of me yet.
If any of you has a refined color image workflow I wouldn't mind seeing it. Thank you again for your help and kindness.

_________________
Best regards,

Tim

The measure of a man is not how many times he gets knocked down...but how many times he gets back up.


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 Post subject: Re: Selenium Tone
PostPosted: Fri Sep 23, 2011 3:57 pm  (#9) 
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Location: "Looking for my eraser" =P
raven4ns wrote:
Thank you everyone for your suggestions and help, I appreciate it very much.

Rod, thank you for the download, my computer skills aren't very good, where do I put the xcf file...in plug-ins? With PS, using their duotone presets was easy as was the tweaking of them if necessary. Once I get a good workflow going in Gimp, hopefully, this will be easy too.
At the moment I am working on a B&W Selenium workflow as you can see plus a workflow for preparing colored images to be placed on my website, converted to B&W or changed to photo-art. Thanks to you I think I have a handle on the B&W workflow, and I have a crude workflow for the color although it needs refining. The last segment, photo-art, has not been dealt with in any meaningful way as yet. I have PainterX as well as PE4 for the photo conversion which will be automatic painting with input from me. As you can see I have a good deal of work in front of me yet.
If any of you has a refined color image workflow I wouldn't mind seeing it. Thank you again for your help and kindness.


XCF format is Gimps actual workspace file.You can open it just like an image - right click/open with Gimp
PM sent :)

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Image
____________
OK, . . . . so what's the speed of dark?


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