The Subtract mode in action


show more The Subtract mode in action provides you with in-depth training on Design. Taught by Deke McClelland as part of the Photoshop CS3 Channels & Masks: Advanced Techniques show less
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The Subtract mode in action

So in the last exercise we used the Add mode combined with the Calculations command in order to generate an Alpha Channel, this one right here, for our superhero hair dude from photographer Chris Schmidt. And this is a very serviceable Alpha Channel, at least a base channel on which to build a mask. However, maybe we'd be able to do better and certainly we would like to gain some experience with the Subtract mode. So let's give it a shot, let's see if subtract might give us something better than Add. I want you to return to the RGB composite view of the image. I am going to press the F key -- oh, by the way before I press F however I am working with a catch up document, in case you want to open it up, it's called Hero with Add.tif, meaning it's our Hero guy with of course an Alpha channel created using the Add Blend mode.

All right, now I am going to switch back to the Full Screen mode here, so that I can keep an eye on as much of the vertical aspect of the image as...

The Subtract mode in action
Video duration: 8m 24s 20h 47m Advanced

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The Subtract mode in action provides you with in-depth training on Design. Taught by Deke McClelland as part of the Photoshop CS3 Channels & Masks: Advanced Techniques

Subjects:
Design Photography
Software:
Photoshop
Author:
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