[Elphel-support] raw file from elphel

[Venkat Subbiah]

Andrey,

Thanks for your reply. Follow up questions below.

On Thu, Oct 11, 2012 at 9:51 AM, support-list <
support-list at support.elphel.com> wrote:

> **
> Hello Vencat,
>
> It is possible to read sesnor data, but the data rate will be much lower
> than with compressed, so I would only recommend using it for test purposes.
>
For the real acquisition I would recommend JP4 mode with 99% or even 100%
> "quality" - in the last case there will be no quantizing in the compressor
> at all. Even as the compressed JP4 data is 8 bit, the conversion from the
> sensor 12 bit output matches the sesnor (mostly shot) noise, so the
> difference is under the noise floor.
>
> Toi get teh raw data you may use the PHP script in the camera described on
> the wiki (I just updated that page):
> http://wiki.elphel.com/index.php?title=RawImage
>
1) On that webpage the link to the PHP script is not working.
2) What is the format of the raw image?
3) On the webpage there is a warning about continuos acquistion? How can I
set the camera to take one picture and stop taking any more pictures till I
ask it to do so again.

>
>
> You can specify "BITS=8" (default) or "BITS=16" among other parameter
>

> Andrey
>
> ---- On Wed, 10 Oct 2012 23:58:30 -0700 *Venkat Subbiah <
> venkat at magnasinc.com>* wrote ----
>
> Hello,
>
> I would like read a raw file off the camera, and I would like to read it
> before any processing. i.e I want the raw pixels in the Bayer pattern as I
> don't want to apply any filters while doing demosacing etc.
>
> http://wiki.elphel.com/index.php?title=JP4#bayer2rgb2:_debayer
>
> I see this link and this goes into converting into jpeg etc, but what I
> am interested in just getting the raw pixel values.
>
> Also Is there a mode I can put the camera into to save the file without
> any compression, so that it is easy to read the file out. i.e put it
> something like a BMP mode, where no kind of compression is used. When no
> compression is used it would also be very easy to read the file.
>
> Thanks,
> Venkat
>
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>
>
>
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