MATLAB Answers


How to create a RGB image with reflectances ?

Asked by Maha
on 2 Jul 2019
Latest activity Commented on by Image Analyst
on 2 Aug 2019
Hello everyone,
I have reflectances data (water leaving reflectances ratios), partially corrected from the atmosphere (Rrc) or not (Rrs)
I can plot true colour or quasi true colour images with the different software available (SeaDAS, SNAP, etc). But I would like to do it in Matlab. I can't find any question about it.
We have access to reflectances at different wavelengths, like 490 for the blue, 555 for the green and 650 for the red.
How can I create an RGB image with these matrix ?


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1 Answer

Answer by Image Analyst
on 1 Aug 2019


Hum thanks for this answer, maybe my question should be more about how to transform a satellite light signal into an index, and then I could apply your function
Well I've done that using the values of the chromaticity curves and multiple spectral images. Just weight the images by the curves, convert color space, etc. Not sure I could extract it from my program cleanly enough to give it to you though.
Maybe you'd like to see how a published paper discusses it.

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