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Re: Bayer to RGB conversion [message #74048 is a reply to message #73964]

Wed, 15 December 2010 11:25

Karl[1]
Messages: 79
Registered: October 2005

Member

On Dec 15, 8:10 am, David Fanning <n...@dfanning.com> wrote:
> nata writes:
>> Ok, maybe I didn't understand the question.
>
> Well, I didn't understand the question either. :-)
>

Color quantization has nothing to do with it.

Bayer sensors, or more accurately perhaps, sensors that output Bayer-
format images are often found in smartphones as part of their built-in
camera system. The phone probably has a DSP or other specialized
hardware to convert the Bayer image to RGB and then eventually to the
JPEG file or whatever ends up storing your photo.

Wikipedia has a decent article about it, including links to GPL
software that might do the conversion.

I've not looked at the algorithms involved, but if performance is
important, then I'd doubt that coding it in IDL would work well.
Matlab has a built-in function for it and there are GPU
implementations out there. If I could use the GPL code, I'd probably
put it in a DLM and call it from IDL, if it is not already in IDL or
ENVI.

Karl

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[Message index]

		Bayer to RGB conversion By: David Grier on Tue, 14 December 2010 17:31
		Re: Bayer to RGB conversion By: David Grier on Wed, 15 December 2010 17:34
		Re: Bayer to RGB conversion By: Karl[1] on Wed, 15 December 2010 11:25
		Re: Bayer to RGB conversion By: David Fanning on Wed, 15 December 2010 07:10
		Re: Bayer to RGB conversion By: natha on Wed, 15 December 2010 07:01
		Re: Bayer to RGB conversion By: David Fanning on Wed, 15 December 2010 06:49
		Re: Bayer to RGB conversion By: natha on Wed, 15 December 2010 06:44

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