Re: [PanoToolsNG] Re: 2 line stitch
- Remember that in PTGui the first image in the sequence is by default
set to be the "anchor" image: Yaw, Pitch and Roll all set to ZERO,
and this image is set to NOT be optimized.
In particular, if your first shot was not taken with the camera set
at a Pitch of zero (for example, you exposed the top row or the
zenith first), then the default Pitch setting is most certainly NOT
going to be right and yes I *would* expect the result to look wrong.
Ideally, when you do the original shoot you are close to certain of
the Pitch and Roll of *at least one* image. In PTGui, you set the
Pitch and Roll values of that image to match your capture set-up for
that image. Then turn OFF optimization for that image and if it is
not the first image, go the the first image and turn ON optimization.
On Feb 18, 2008, at 2:26 AM, Robert Bilsland wrote:
> I agree with John. I shoot spherical panoramas in 32 shots (3 rows of
> 10, 1 up and 1 down). If stack all the images up at the same position
> and place control points the outcome is just so wrong. If I place the
> images into their approximate positions and then optimize the control
> points an almost perfect panorama is produced each time.