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Photo Compositing Collage, montage, masking, selections, combining, etc.

code blue class assignment due tomorrow

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Old 11-20-2008, 05:20 PM
bmacior bmacior is offline
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code blue class assignment due tomorrow

Doing a panoramic by pasting 3 pictures together. According to my notes (which are not working) these are the steps:

1. overlap pictures.
2. with the poly lasso tool select the overlap area. selection (the selection area is supposed to be white, the non selected, black).
4. apply the gradient tool (set black on left to transparent on right) in the selected area. Black is the foreground color on the black/white tool.
5. the channel should be black on the left, the selection gradiented, and the right black.

Here the problem, my channel goes from white to gradient to white.
I'm so confused. What am I doing wrong? Been fighting this problem for hours.

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Old 11-20-2008, 06:31 PM
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Doug Nelson Doug Nelson is offline
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Re: code blue class assignment due tomorrow

Sounds like you have the wrong gradient option selected on the toolbar. It should be Linear and it sounds like you have Reflected selected.
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Old 11-20-2008, 07:12 PM
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TommyO TommyO is offline
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Re: code blue class assignment due tomorrow

Your channel should look like the image attached below.
It could be two things:
1. your selection (step 2) got inverted;
2. you did not apply the gradient to the channel, you applied it to the composite image.

Think about the intent of the whole thing, and the end result you want....
- you want to hide part of the overlap, but in a graduated/fading way;
- you do this on the channel, since it can create a gray-scale mask for you.

Your steps sound and work fine; so, it's just a misunderstanding or "user error".
Attached Images
File Type: jpg Untitled-3.jpg (12.3 KB, 4 views)
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Old 11-20-2008, 07:41 PM
bmacior bmacior is offline
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Join Date: Nov 2008
Location: Utah
Posts: 7
Re: code blue class assignment due tomorrow

You guys are life savers. I knew it was "user". Just get caught in a loop and it's hard get the blinders off. All we have left to do is replace the sky. Didn't copy any of those files. That'll be a quick do in class tomorrow.

Thanks again.
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