SilverOxide B&W Photoshop Filters

W
Posted By
Will
Feb 2, 2004
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726
Replies
8
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Closed
I was wondering if anyone has used the SilverOxide filters for PhotoShop to create grayscale files for printing? (The filter algorithms are supposed to convert the color image to grayscale while closely matching film characteristics like Illford HP5 which I use for B&W work.)

Thanks
Will

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Robert Feinman
Feb 3, 2004
In article , says…
I was wondering if anyone has used the SilverOxide filters for PhotoShop to create grayscale files for printing? (The filter algorithms are supposed to convert the color image to grayscale while closely matching film characteristics like Illford HP5 which I use for B&W work.)
Thanks
Will
Why don’t you just try experimenting with the channel mixer before you spend any money. You can also apply a curve to a specific channel to give you additional flexibility.


Robert D Feinman

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HL
Harry Limey
Feb 3, 2004
Will
Not sure if this is what you are looking for, but here is an extract from an earlier posting 1733 on 1/02/04, the script (mentioned) includes a silver filter (also various sepia tones and platinum) and it is free! you need to change the image to greyscale before applying.
Harry

"Paul, try this script – If you have Photoshop CS.
http://www.melor.com/projects/variations/01_toning.htm

"Will" wrote in message
I was wondering if anyone has used the SilverOxide filters for PhotoShop
to
create grayscale files for printing? (The filter algorithms are supposed
to
convert the color image to grayscale while closely matching film characteristics like Illford HP5 which I use for B&W work.)
Thanks
Will

A
AArDvarK
Feb 4, 2004
That’s fantastic stuff man … thanks for the link!
Alex

"Harry Limey" <(.)co.uk> wrote in message
Will
Not sure if this is what you are looking for, but here is an extract from an earlier posting 1733 on 1/02/04, the script (mentioned) includes a silver filter (also various sepia tones and platinum) and it is free! you need to change the image to greyscale before applying.
Harry

"Paul, try this script – If you have Photoshop CS.
http://www.melor.com/projects/variations/01_toning.htm

"Will" wrote in message
I was wondering if anyone has used the SilverOxide filters for PhotoShop
to
create grayscale files for printing? (The filter algorithms are supposed
to
convert the color image to grayscale while closely matching film characteristics like Illford HP5 which I use for B&W work.)
Thanks
Will

P
PaulPhoto
Feb 7, 2004
You might want to try this routine if you have Photoshop CS.

http://www.melor.com/projects/variations/01_bw.htm

It is free in a working demo mode that doesn’t expire. Roger Cavanagh is working on a KILLER V2.0 Release that will be even better than this one.

Paul

"Will" wrote in message
I was wondering if anyone has used the SilverOxide filters for PhotoShop
to
create grayscale files for printing? (The filter algorithms are supposed
to
convert the color image to grayscale while closely matching film characteristics like Illford HP5 which I use for B&W work.)
Thanks
Will

R
Rick
Feb 7, 2004
Paul, on your website you mention the difficulty of finding borders using PS’s scripting. Wouldn’t it be a trivial matter, once two or three adjoining border pixels are located, to simply extrapolate the location difference between them to find the entire border? Seems like a foolproof method, at least for rectangular or square images.

Rick

"PaulPhoto" wrote in message
You might want to try this routine if you have Photoshop CS.
http://www.melor.com/projects/variations/01_bw.htm

It is free in a working demo mode that doesn’t expire. Roger Cavanagh is working on a KILLER V2.0 Release that will be even better than this one.
Paul

"Will" wrote in message
I was wondering if anyone has used the SilverOxide filters for PhotoShop
to
create grayscale files for printing? (The filter algorithms are supposed
to
convert the color image to grayscale while closely matching film characteristics like Illford HP5 which I use for B&W work.)
Thanks
Will

P
PaulPhoto
Feb 8, 2004
Rick, If it were only that simple. The scripting in PS is poorly documented and a lot of features you would expect are either not present or undocumented. For instance, there is no command I have found to simply report the RGB value of a single pixel. A workaround is needed for that. It gets more fun the deeper you get into it.

I discovered after doing the logic for a binary search on the edge pixels that photoshop has this routine built in. Don’t use this script unless you are just interested in the code. On the other hand, try out the variations programs. Roger is doing the UI for version 2 of all the scripts. They are very cool.

One thing they do that I haven’t seen in any other addin or action for PS is create a preview of different types of settings or conversions, and have the ability to create more than one type of conversion and leave the results in a history state OR as a layer. This way you can layer mask and show one conversion on top of another. Very cool, If I do say myself.

For instance in the velvia routine. You process the image with a light and a heavy level of saturation. Create a layer mask to reveal the sky in the heavy sat routine and show the ground in the lighter sat version. Play with them. They work well and don’t expire ever even if you don’t donate a penny.

Paul

"Rick" wrote in message
Paul, on your website you mention the difficulty of finding borders using PS’s scripting. Wouldn’t it be a trivial matter, once two or three adjoining border pixels are located, to simply extrapolate the location difference between them to find the entire border? Seems like a foolproof method, at least for rectangular or square images.

Rick

"PaulPhoto" wrote in message
You might want to try this routine if you have Photoshop CS.
http://www.melor.com/projects/variations/01_bw.htm

It is free in a working demo mode that doesn’t expire. Roger Cavanagh is working on a KILLER V2.0 Release that will be even better than this one.
Paul

"Will" wrote in message
I was wondering if anyone has used the SilverOxide filters for
PhotoShop
to
create grayscale files for printing? (The filter algorithms are
supposed
to
convert the color image to grayscale while closely matching film characteristics like Illford HP5 which I use for B&W work.)
Thanks
Will

W
WharfRat
Feb 8, 2004
in article LzfVb.36334$, PaulPhoto at
wrote on 2/7/04 4:40 PM:

Rick, If it were only that simple. The scripting in PS is poorly documented and a lot of features you would expect are either not present or undocumented. For instance, there is no command I have found to simply report the RGB value of a single pixel. A workaround is needed for that. It gets more fun the deeper you get into it.

Maybe PS doesn’t have it – I have not looked.
But the Mas OS has it built in.
You can get the value of any pixel in anything you are doing.

MSD
R
Rick
Feb 8, 2004
"WharfRat" wrote in message
in article LzfVb.36334$, PaulPhoto at
wrote on 2/7/04 4:40 PM:

Rick, If it were only that simple. The scripting in PS is poorly documented and a lot of features you would expect are either not present or undocumented. For instance, there is no command I have found to simply report the RGB value of a single pixel. A workaround is needed for that. It gets more fun the deeper you get into it.

Maybe PS doesn’t have it – I have not looked.
But the Mas OS has it built in.
You can get the value of any pixel in anything you are doing.

This is probably the same shortcoming that causes the famous "disappearing cursor at 50% gray" issue in PS. I think Chris Cox mentioned it wasn’t an issue on the Mac, only in Windows.

Rick

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