On 1 Jan 2005 at 12:56, Bob Talbot wrote:

> 
> > ....well, that's my wish for 2005.
> > Embedded in the picture data, telling me which side of the picture
> > should be pointed down (IOW: which side of the picture was
> > *originally* pointing down, at the moment of shooting).
> 
> Up/Down is oversimplifying the issue a bit: you need full GPS location
> plus 3D pose and rotation sensors.  With all that data as input to
> such programs as Pano Tools you cound do "proper" persective
> correction rather than have to guess aspect ratios.
> 
> For a quick fix pour 20ml of ink into the fromt of your lens: the
> meniscus should give a clue as to which way the lens was tilted.

Well, actually....did you know there were slides with a bubble-level 
in it? 
(I vaguelly recall even a thermo-sensing slide, with changing colors 
indicating temperature....either or both types are *very* rare)
(and temperature+windspeed should be mandatory, along with GPS-data 
of course)
(how else can one analyse the effect of tremor & wind on image-blur?)


Willem 
(a bubble-level blended into the image, that's the way to go) 
Jan


--                 
Bye,

Willem-Jan Markerink

      The desire to understand 
is sometimes far less intelligent than
     the inability to understand

<[EMAIL PROTECTED]>
[note: 'a-one' & 'en-el'!]

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