I think I got it. It has something to do with the spectrum.
It seems that CTRL ALT + 2 selects from red to blue and CTRL ALT + 3 selects from red to green.
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Depends on which tool is currently selected. Often the number keys represent a percentage (1 =10%, etc.). Using that combination will indeed change which channel you are looking at (turn on your channel menu and press those keys and you will see it change channels).
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I'm guessing here, mind you, but I suspect it's selecting the lumnosity of the individual color channels.Leave a comment:
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What am I selecting?
I don't know if everybody's keyboards work the same way but in mine when I press CTRL ALT + 1, CTRL ALT + 2 and CTRL ALT + 3, Photoshop selects "something".
I guess that in the first case it matches luminosity with opacity but I can't figure it out what's the other two.
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sometimes, when you view a color-picture channel by channel, you might like and want to save it as a B/W photo, lets say the green channel. How is this done?05-08-2009, 05:50 AM -
Hello RetouchPRO users, i am a little confused about the Channelmixer in Photoshop. In its options, when i chose Monochrome and set BLUE to 100%, the other channels to 0%, i expected it to result in the same picture i get when looking at the normal Blue channel from the Channels tab. But those two are...06-02-2006, 05:10 AM
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Hey guys,
Again, re-reading Dan Margulis' material and how he uses channels for the apply image command to create better detail and how certain channels have better detail info than others. Now in regards to channel blending, what exactly does that do? He mentioned that he would blend the...05-11-2012, 12:39 PM -
So I recently got a bunch of photos with all kinds of problems. I tore through the whole lot of ‘em with little to no problem. Then, I got to these two and have pretty much hit a brick wall. I have tried the technique for utilizing info from the better channel (the green), but honestly I have never...01-26-2006, 03:44 PM
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Happy Thanksgiving to all
Just going through some old photos to practice with and found a my parents wedding picture. but can't seem to reveal the detail of the dark sections of the image. If I look at the red channel I can see the the background and shadows good but I don't know how the use...11-28-2002, 09:14 AM
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