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Posted on 18/10/12 3:47:25 PM |
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Elona Rogers
* Posts: 25 Reply |
Selection using quick mask
My programme is still CS3 extended, and I was able to do these selection exercises 18mths ago, i.e. the insect on page 11. but having difficulties now. With the man on page 8, I followed the directions re changing the default settings for quick mask (initially, the brush painted in black or white, until I selected red in the fore and back colours too). I tried to outline the figure in quick mask red and then fill in the centre using the information about the insect. The magic wand would only select the red borde I had already painted and wouldn’t fill the centre part. I found the quick selection wand did select the centre area and did fill with the red – having feathered to 4 – But when the quick mask is removed to show the final selection I find ‘ants’ both on the original selected area, and again where the quick selection wand was used. I could delete the inner selection ants but the final image is just weird. See Attached web jpg (Also, when I moved the images of both the 2 men on the previous page and this man on page 8 onto a new canvas they showed free transform boxes which I was unable to delete or cancel.) My aim is to cut out a wolf from its background to use in an A/V I am doing, but I had the same problem of not being able to use the magic wand infill shortcut without this showing on the wolfs body. When transferring the wolf cutout to a new canvas there is still the problem of it having a free transfom bounding box around it.  |
Posted on 19/10/12 08:22:50 AM |
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Steve Caplin
Administrator Posts: 6997 Reply  |
Re: Selection using quick mask
Elona, I'm having a little difficulty understanding exactly what you're doing here, but it seems to me you're painting on QuickMask in red - is this right? QuickMask only uses black white and grey - it's like a single channel - so when you choose red as your foreground colour, it's actually painting in grey on the mask, which is why you're getting a partial selection. If I've got this wrong, are you able to explain again, more slowly, exactly what's going wrong? |
Posted on 19/10/12 10:46:44 PM |
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Elona Rogers
* Posts: 25 Reply |
Re: Selection using quick mask
Your question and explanation has helped me clarify this task. Yes i had selected 'red' as i kept getting either the black or white brush. I have just spent 2 hours trying to work the process out. It seems that the sequence in which you choose the quick mast is significant - in obtaining the QM red colour, and not the black and white. Next, when i stopped trying the clever short cut of selecting the central body with the Magic wand, as with the insect on the next page, it worked much better by filling in the whole body in one go with the brush. (I still cant work out why the magic wand tool did not work to infil as it did with the insect) Attached is my latest effort. Alas, re trying this method on the wolf cut-out didn't work out so I resorted to the polygonal lasso tool. I'll just have to practise more and try your different techniques. Thank you Steve.  |
Posted on 22/10/12 08:24:26 AM |
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Steve Caplin
Administrator Posts: 6997 Reply |
Re: Selection using quick mask
I think you may not be working in Quick Mask when you think you are. Press Q first to enter QuickMask mode. Now, when you paint in black you'll add to your selection, and when you paint in white you'll subtract from it. If QuickMask showed you the colours this way, you wouldn't be able to see what you were doing, so instead it shows the selected areas as a translucent red overlay. Painting in black, then, adds to the red overlay. If you select the perimeter in QuickMask, so you can see it outlined in red, then using the Magic Wand will select pixels on the QuickMask channel as if you were selecting in a black and white image. If you exit QuickMask and then use the Magic Wand, you'll be selecting in the main RGB image instead. Does this help at all? |