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Author Topic: Novel B+W conversion method - using QTR proofing p  (Read 3074 times)
colourperfect
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« on: December 16, 2005, 12:53:42 PM »
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I have been spending some time generating .icc softproofing profiles from QTR, an excellent bit of software.

I realised that you can use softproofing, and eventual conversion as a way to generate B+W images from color images.

Essentialy you need to turn on softproofing and select a QTR profile, the image goes B+W. Now apply a Hue / Saturation Layer and tune to taste. A curves adjustment layer allows contrast tuning too. You then need to convert to the QTR profile, and eventualy to RGB

Added a page to my web site to describe it in more detail.

http://www.colourperfect.co.uk/11.html

As QTR allows toned profiles (warm and cold) this can be used as well

Thanks

http://www.colourperfect.co.uk
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Jonathan Wienke
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« Reply #1 on: December 16, 2005, 03:39:14 PM »
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Essentialy you need to turn on softproofing and select a QTR profile, the image goes B+W. Now apply a Hue / Saturation Layer and tune to taste. A curves adjustment layer allows contrast tuning too. You then need to convert to the QTR profile, and eventualy to RGB
You can accomplish the same thing with a whole lot less fiddling and more control by simply using a decent B&W conversion tool like theimagingfactory.com's Convert To B&W Pro. While your method works, there are far better approaches out there.
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colourperfect
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« Reply #2 on: December 17, 2005, 03:36:57 AM »
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You can accomplish the same thing with a whole lot less fiddling and more control by simply using a decent B&W conversion tool like theimagingfactory.com's Convert To B&W Pro. While your method works, there are far better approaches out there.
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Yes but it costs a lot, and it doesnt give you a print preview. I am sure a plug in will use far more resources too !

I am glad you found it works !

Colourperfect
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Jonathan Wienke
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« Reply #3 on: December 17, 2005, 07:29:58 AM »
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I use custom printer profiles, which give perfectly adequate soft-proofing for whatever paper I'm printing with. Your method offers no advantage over the plugin's full-screen preview, since you can't actually soft proof to the final output device until after you've converted the file to the QTR profile and back to a standard RGB or grayscale working space, which BTW is a procedure likely to produce more posterization/quantization errors than theimagingfactory's plugin or the Channel Mixer, which offers as much control over B&W conversion as your method in a single simple step far less likely to introduce image artifacts than your unnecessarily convoluted method.
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colourperfect
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« Reply #4 on: December 17, 2005, 05:11:10 PM »
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whats with the army stuff ?
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DarkPenguin
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« Reply #5 on: December 17, 2005, 06:22:33 PM »
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whats with the army stuff ?
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[a href=\"http://luminous-landscape.com/forum/index.php?showtopic=9283]http://luminous-landscape.com/forum/index.php?showtopic=9283[/url]
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Jonathan Wienke
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« Reply #6 on: December 17, 2005, 08:48:29 PM »
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Or somewhat more precisely, http://www.visual-vacations.com/forums/viewforum.php?f=6
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