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Author Topic: Grayscale conversion  (Read 5591 times)

Jeff-Grant

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Grayscale conversion
« on: November 05, 2014, 06:00:52 pm »

I'm just experimenting with QTR. So far I have found that my image needs to be converted to grayscale with a Gamma of 2.2. I use ProPhoto with a Gamma of 1.8 for my editing so I'm wondering what the correct way to get to grayscale 2.2 is. Do I convert to ARGB, and then mode or do I set my colour settings to Grey Gamma 2.2 and then mode. I would hate to start off doing it the wrong way.
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 Jeff  www.jeff-grant.com

digitaldog

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Re: Grayscale conversion
« Reply #1 on: November 05, 2014, 06:04:58 pm »

IF you convert using a 2.2 Grayscale setting that’s the resulting Curve and as no worries converting directly from ProPhoto 1.8 to 2.2 gray,
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Jeff-Grant

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Re: Grayscale conversion
« Reply #2 on: November 05, 2014, 06:11:51 pm »

Great, thanks Andrew. So I just make my colour settings Gray 2.2 and continue working with ProPhoto and use mode to convert. That's easy.
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 Jeff  www.jeff-grant.com

brntoki

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Re: Grayscale conversion
« Reply #3 on: November 08, 2014, 08:36:28 am »

I freely admit I'm not 100% positive what Andrew meant, but I AM sure that what I thought he meant was the opposite of what YOU thought he meant.  :-\
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Jeff-Grant

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Re: Grayscale conversion
« Reply #4 on: November 08, 2014, 03:57:25 pm »

With a bit of luck, the maestro will reply to sort us out.
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 Jeff  www.jeff-grant.com
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