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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....cts/Jousset.pdf
http://www.faculty.i...TR/demosaic.pdf
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Can demosaicing be reversed? (Digital camera)
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#1
Posted 25 August 2004 - 07:53 PM
Kedas 
(Molecule)
In the period that Einstein was active as a professor, one of his students came to him and said:
"The questions of this year's exam are the same as last years!"
"True," Einstein said, "but this year all answers are different."
[Albert Einstein]
"The questions of this year's exam are the same as last years!"
"True," Einstein said, "but this year all answers are different."
[Albert Einstein]
- Posts: 695 | Joined: 24-July 03
Reply
#2
Posted 25 August 2004 - 09:47 PM
e(ho0n3
(Baryon)
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?
By the way, why is this in the applied maths. forum?
- Posts: 112 | Joined: 19-July 04
- Reply
#3
Posted 26 August 2004 - 04:32 PM
Kedas
(Molecule)
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.
Why here, it's a math question and applied in almost every digital camera.
In the period that Einstein was active as a professor, one of his students came to him and said:
"The questions of this year's exam are the same as last years!"
"True," Einstein said, "but this year all answers are different."
[Albert Einstein]
"The questions of this year's exam are the same as last years!"
"True," Einstein said, "but this year all answers are different."
[Albert Einstein]
- Posts: 695 | Joined: 24-July 03
- Reply
#4
Posted 26 August 2004 - 05:09 PM
e(ho0n3
(Baryon)
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.
- Posts: 112 | Joined: 19-July 04
- Reply
#5
Posted 26 August 2004 - 05:17 PM
Kedas
(Molecule)
e(ho0n3 said:
Look at the demosaicing algorithms and determine whether they are reversible.
That is basically what I'm asking.
So what do you think?
In the period that Einstein was active as a professor, one of his students came to him and said:
"The questions of this year's exam are the same as last years!"
"True," Einstein said, "but this year all answers are different."
[Albert Einstein]
"The questions of this year's exam are the same as last years!"
"True," Einstein said, "but this year all answers are different."
[Albert Einstein]
- Posts: 695 | Joined: 24-July 03
- Reply
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