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Photo Restoration Repairing damaged photos

Why Use Greyscale?

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  #11  
Old 03-20-2002, 07:56 PM
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Ed_L Ed_L is offline
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The method in a previous post probably gives more control than you really want to have. Here's the link: http://www.retouchpro.com/forums/sho...=&threadid=755

Ed
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  #12  
Old 03-20-2002, 10:36 PM
john_opitz john_opitz is offline
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With the B& W conv. from color. You have to think of brightness(luminosity). Than Hue or saturation. Your better to color correct the image first, for B&W conv. to grayscale. You have to look in your channels( do channel blending) for the best one(s) to use, for the channel mixer,apply image,calculations.
You have to remember one thing. During the conversion(with A.P.S.), the green is twice important as the red and six times important then the blue channel.That's why I like the "apply image command",you can blend rgb and/or cmyk channels. You can cross color spaces. Target thr green channel to mix into. Doing the Lab conv. and deleting the "a" and "b" channels is nothing more then,just using the "green" channel of rgb. But bottom line you have to look in your channels to see whats going on. And not the historgram.
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  #13  
Old 03-21-2002, 09:49 AM
john_opitz john_opitz is offline
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Your color images, will look funky(doing the channel blending) before you convert them to b&w. But that does not matter. As long as you get a better b&w from it.

Let me correct this: I said:

<Your better to color correct the image first, for B&W conv. to grayscale. >

Your better to color correct the image first,using channel blending(targeting the best channels to use) then convert to b&w. The channel mixer, calculations,apply image command do the same thing in reference to channel blending. Depends on how you want to approach it.
Also, if your a Swashbuckling type. Take a stab at cmyk with the image and use the "black" channel for blending. Tooshay !!!



Last edited by john_opitz; 03-21-2002 at 10:19 AM.
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  #14  
Old 03-21-2002, 10:25 AM
admin_fff admin_fff is offline
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Ed/John-

Thanks for the detailed replies. I will have to pass on the info to the little lady. I know just enough about Photoshop to be dangerous.

Thanks again

David
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  #15  
Old 03-21-2002, 03:53 PM
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Ed_L Ed_L is offline
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You're welcome David. I'm in the same category you are when it comes to Photoshop. I'm always in trouble.

Ed
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