[PLUG] Blue Video

[Denis Heidtmann]

On Fri, Jun 15, 2012 at 10:13 PM, Michael Rasmussen <michael at jamhome.us>wrote:

> On Fri, Jun 15, 2012 at 06:46:12PM -0700, Denis Heidtmann wrote:
> > I used my Canon PowerShot SD780IS to record some videos in open shade on
> a
> > bright sunny day.  I transferred the resulting files to my Ubuntu system.
> >  The thumbnails (*.THM) look reasonable, but the videos (*.MOV) which are
> > listed as QuickTime, are heavily tinted blue.  ( The subject was a Blue
> > Grass band, but not that blue.)  The instructions for the camera do not
> > offer choices for video white balance, although it does for the stills.
> >
> > One person suggested that that the problem may be in the display SW--I am
> > using Movie Player, the default on Ubuntu.
> >
> > How do I diagnose the problem?
>
> What you describe is what I would expect from a camera balanced for
> daylight rendering
> subjects in open shade.
>
> This is correctable with any reasonable video editing program.
>
> --
>            Michael Rasmussen, Portland Oregon


I have never seen such extreme blue due to open shade, but it is possible
that the white balance was set improperly.  It appears that the white
balance may revert to what ever it was set at the last time the video was
used, independent of how it was set for stills.  I wonder why the thumbnail
is not blue.

My guess at this point is that the file is at fault, likely due to white
balance (operator) error.

-Denis