Posted by
Joel Sheffield on
Feb 17, 2016; 9:40pm
URL: http://imagej.273.s1.nabble.com/Color-Correction-for-Underwater-Photos-tp5015660p5015666.html
Hi,
Here's a somewhat kludgy approach that you might use. Several years ago, I
presented an introduction to ImageJ to the Microscopy Society of America.
In that presentation,
http://imagej.nih.gov/ij/docs/examples/IJ-M&M08.ppt,
I included a method of color correction of images based on separation of
RGB images and manipulation of the separated images to modify the color
balance. Check slides 20-21 in the powerpoint. It's not a solution, but
more of a suggestion of a strategy. There may be plug-ins that do that
more directly.
Joel
Joel B. Sheffield, Ph.D
Department of Biology
Temple University
Philadelphia, PA 19122
Voice: 215 204 8839
e-mail:
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On Wed, Feb 17, 2016 at 11:19 AM, klesneski <
[hidden email]> wrote:
> Hi everyone,
> I am doing some analyses of tissue color of corals that I took with an
> underwater camera. I am trying to see if there are differences in tissue
> color among colonies. My idea is to use the color histograms of the
> selected
> colonies. In each image, I have a color standard card, placed next to the
> coral colony. One of the reasons why we include this card is because red
> light is attenuated with depth, so objects and images appear more blue the
> deeper you are, and the coral colonies are all at different depths. We know
> the RBG values of the color on the card. I am wondering if anyone has
> experience or advice on how I could use this color standard card in ImageJ
> to perform a sort of correction before using color histograms?
> Many thanks,
> KL
>
>
>
>
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