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adjusting image exposure for a panoramic

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  #1  
Old 02-06-2005, 02:47 PM
redshoot redshoot is offline
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adjusting image exposure for a panoramic

Hi
I have a problem with a couple of photos that I want to stitch
for a panoramic.
The picture I have attached shows how one or both of the images
need adjusting so that their exposures 'match'
I am unsure of the best way to do this.
Any advice is welcome
I am a keen amateur photoshop 7 user

many thanks
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File Type: jpg picture.jpg (44.4 KB, 19 views)
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  #2  
Old 02-06-2005, 03:37 PM
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Jeff L Jeff L is offline
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I know there are ways to do advanced editing on this type of problem but they escape me right now.

With this image, the only thing that jumped out at me was the sky. I just selected the sky, feathered, and sampled the darker blue sky. I then just painted the sky. Seems to have worked with this one.

One thing you want to remember when stitching panos is to lock your exposure. That can save alot of headaches.
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  #3  
Old 02-07-2005, 01:02 AM
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Gary Richardson Gary Richardson is offline
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Alternatively, select the darker half of the picture, feather by about 3-4 pix, then apply levels to correct imbalance. If there's any sign of a join, just clone it out.
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Old 02-07-2005, 01:25 AM
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Doug Nelson Doug Nelson is offline
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I'd open the two halves as completely different documents, put 4 color samplers on 4 colors they both share (or at least that you feel need to match in both). Then I'd write down the values from one image and use curves to set the spots on the 2nd image to match.

For example, if in image1 the sky sampler says R128,G171,B222, I'd move to image2 and open the curves dialog and precisely position my cursor over the new sky color sampler and ctrl-click to put a point on the curve. Then I'd use the up/down arrows (only, never left/right arrows) to move this point until it matches the image1 values precisely.

Repeat with other samplers.
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  #5  
Old 02-07-2005, 02:36 PM
redshoot redshoot is offline
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Thumbs down This great tutorial solves the problem with ease

I have stumbled upon this superb tutorial that both solves my problem
and opens my eyes to a part of photoshop that I have been a bit scared of
in the past...........
I've sorted the panoramic and ordered a print 46" wide today, cant wait to get it on the wall

Well worth a look............

http://www.creativepro.com/img/story...ssellbrown.pdf
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