Starting to Work / Quick Mask
Subtitles of the Movie
Well you have seen in the previous movie how you can save a selection to a new mask channel, so you can use it later. I want to show you how you can edit this mask and then reload it. You know that we can edit a selection using selection tools by adding and subtracting. But another thing you can do, and I am going to click on the mask here, another thing you can do is use painting tools on your mask and then reload that mask as a selection. Wherever my mask is white will be 100 percent selected, and wherever it is black will be 100 percent protected, or zero percent selected. But what I could do is paint an edge, so I had a soft edge on one side and the hard edge on the other. And what this ostensibly does is creates a feathering effect. So I am not using a selection tool. I am using my paintbrush here to edit my mask. And you can see that what I have is some gray areas. Well what's going to happen when I when I reactivate this mask as a selection. Well let's see. I will go back to RGB, and I will choose Select menu>Load Selection and that is of course the selection that I have just edited - Alpha. And you can see what it has done. I have very hard-edged selection here and what appears to be a hard-edged selection, which has been slightly edited. But I am going to go ahead and fill this selection with 100 percent of my foreground color, which happens to be a nice contrasting blue. Very interesting - so wherever my mask channel was slightly gray, it affected this area a little bit. I am going to go back and revert to my original apple, and show you how the Quick Mask tool works. The Quick Mask tool works very much the same way as editing a saved alpha mask. Except it does it on the fly. So here is my 100 percent selection. Now what if I wanted to create a soft edge on one side while maintaining a hard edge on the other. Well it is hard to do with something like a lasso tool. What I really need to do is to force it into mask temporarily. So I am going to come down to the Quick Mask tools here, and the Quick Mask works in two ways. I am either in selection mode and here I am currently in the selection mode, and you know that because you can see the marching ants. Or I can choose to view this as a mask, and I will click on that. And now what it has done is it's showing me this red indicator color in conjunction with my RGB apple in the background. And if you look on the channels palette, it's added a temporary mask channel. The text happens to be italicized, which means it's not been permanently added - it's only temporary until I switch back to Selection mode. So now I can go ahead and use some of my painting tools to edit this mask. And then reactivate it as a selection. So the red I am seeing is actually black, and it is showing me this red color just to show it in conjunction with my RGB document. You can turn off this RGB, and you can see that's the actual mask I have. So knowing that, that the red is actually black, I am going to choose to paint with black and I will paint some of the edge off of this selection here. And I'll switch to white. I will just paint a white spot right here. And notice how my small thumbnail on the mask channel has been updated to reflect that. I will switch back to the Selection mode, and you can see what I can get. And just to prove to you how the effects will work, I will fill it with this foreground color. So we have a hard-edged effect leading to a soft edged effect, because I edited the Quick Mask.
Tutorial Information
| Course: | Adobe Photoshop 6 |
| Author: | Andrew J. Hathaway |
| SKU: | 33189 |
| ISBN: | 1930519206 |
| Release Date: | 2001-01-01 |
| Duration: | 13 hrs / 129 lessons |
| Captions: | For Online University members only |
| Compatibility: |
Vista/XP/2000, OS X, Linux QuickTime 7, Flash 8 |
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