Re: V4L2_PIX_FMT_RAW
- Date: Thu, 21 Feb 2008 13:48:00 +0100
- From: "H. Willstrand" <h.willstrand@xxxxxxxxx>
- Subject: Re: V4L2_PIX_FMT_RAW
On Thu, Feb 21, 2008 at 1:43 PM, Daniel Glöckner <daniel-gl@xxxxxxx> wrote:
> On Thu, Feb 21, 2008 at 01:00:08PM +0100, Thomas Kaiser wrote:
> > H. Willstrand wrote:
>
> > >Still, I'm suspectious about the definition "raw" used here.
> > >RAW should mean unprocessed image data:
> > >* no white balance adjustment
> > >* no color saturation adjustments
> > >* no contrast adjustments
> > >* no sharpness improvements
> > >* no compression with loss
> >
> > Yes, raw means "as it is" no stripping, decoding or removing of SOF
> > headers are done in the driver. May be V4L2_PIX_FMT_AII (AII -> As It Is)
> > is the better name?
>
> IMHO "raw" is the output of the ADC(s).
>
> Uncompressed.
>
> For webcams probably something like V4L2_PIX_FMT_SBGGR16.
>
> Lossless transformations allowed.
Almost agree, meaning lossless transformation can be a compression :)
Cheers,
Harri
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