Can demosaicing be reversed? (Digital camera)

[Kedas]

I want the sensor/source data but I only have a tiff format. can it be done?

I want the colours seperate like they were captured.

 

Some info on demosaicing

http://ivrgwww.epfl.ch/teaching/student_projects/Jousset.pdf

http://www.faculty.idc.ac.il/toky/Publications/TR/demosaic.pdf

[e(ho0n3]

I'm not sure what you are asking exactly. Do you want to obtain the original non-demosaiced image? If demosaicing is a reversable process, then I guess it can be done. And if it can be done, I'm pretty sure someone has already made software to do so. Google around.

 

By the way, why is this in the applied maths. forum?

[Kedas]

The question is 'is it reversable?' and if at which price if any.

 

Why here, it's a math question and applied in almost every digital camera.

[e(ho0n3]

Demosaicing (as I understand it) extrapolates information from an image to contruct a new image with more information (particularly the RGB info. of each pixel). Hence, the process is not destructive, so you should (in theory) be able to contruct the original picture. Look at the demosaicing algorithms and determine whether they are reversible.

[Kedas]

Look at the demosaicing algorithms and determine whether they are reversible.

 

That is basically what I'm asking.

So what do you think?