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rzootan
Joined: 20 Dec 2010
Posts: 1
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 Posted: Mon Dec 20, 2010 6:48 pm Post subject: Could you help me with a quick photoshop question? |
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Hey photoshopfourms.
I am working on my engineering Ph.D. and have been taking videos that needed to be cleaned up a little for publication. I only needed to be pointed in the right direction and anymore help would be greatly appreciated!
Is there any way, or direction that I should look, to have photoshop identify spots that are identical between many images, and remove them?
Basically, I am taking video of some droplets on a objective microscope with a 20x objective. However, the lens (or somewhere along the optics path) is dirty and I get consistent dust spots throughout the image. So, I have many video frames with different pictures but the same dust spots always appearing.
I could just remove them using the spot healing brush but I would prefer to not to do anything subjective to the image.
Thank you for the help. I really appreciate it.
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Auieos
Joined: 29 Jan 2010
Posts: 2019
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| Posted: Tue Dec 21, 2010 3:57 am Post subject: |
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You could..
Get a frame of the dust spots without anything in the microscope.
Place it on top of a regular frame.
Change blending mode of the blank dust frame to difference.
Merge layers.
Invert image.
(see below for example, mushroom is pretend specimen)
Make it into an action possibly. Also, Adobe After Effects is video edit software that can do what you want.
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thehermit
Joined: 05 Mar 2003
Posts: 3987
Location: Cheltenham, UK
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| Posted: Tue Dec 21, 2010 3:03 pm Post subject: |
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It's not what you want to do but as Aueios alludes, a action can be written in Bridge that would automate the spot healing process in multiple frames, but as you say, it falls into the category of re-touched.
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If life serves you lemons, make lemonade! |
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