I use Realviz Stitcher as well.
Erik wrote:
>So now what happens is -- every single image pair cannot be auto-stitched.
>Stitcher asks 'Do you want to re-adjust image or force stitch?'
>No amount of re-adjusting ever gets it so it stitches them itself.
>So I say Force-Stitch, to every image pair in the middle row.
>And I'm being very careful to get a precision alignment on screen.
>
>Then when it comes time to close the cylinder, the first and last image are
>far apart. Perhaps that is because Adjust All Images does nothing at
>any point in the process. And I gave the properties window a fairly good
>approximation of lens size and vFOV (as far as I know; I used values from
>QTVRAS which stitches with this lens exceedingly well).
Once you use force stitch then using "adjust all" is a bad idea, normally it
moves your image to what looks like arbitrary locations. In your case it did
nothing. What you can do is manually keep adjusting the camera FOV till it
closes to what looks right.
Once you have gotten a good pano and calibration setup for that lens then
you can get away with force stitch, but on a lens that your not sure of
settings with it can be a losing battle.
To setup high distortion make sure you have between 25-50% overlap and some
detail in the image. Then you can save that and re-use it and load it into
new projects.
Steve Wrote:
>I print panoramas 5 metres long and the clarity is superb but almost always
>there is some wave distortion in the image that I sort out with photoshop.
Wow, that is impressive, pretty big panos. I too use photoshop but have
kind of special technique kind of going back to my Pano Tools day where I
have multi layered document. Of course it was easier with 6 shot fisheye
than 32 shots as I don't want 32 shots, but I have had two critical
breakthroughs.
First, I can limit to four layers even with 32 source shots. (five is
better)
Second I can automate the creation of all of each render of non adjacent
images.
Here are some links and brief detail:
Think of single row with 10 shots, I can just render every other image to
one render, then do the opposite half. On one of those I also have the up
and down shot. Then I do this with the up 45 rows on two more layers. I
also like to have a background layer with all images so that I'm fixing
flaws rather than having to manually blend all images. I use a wacom tablet
with feathered brush with pressure set to size, or sometimes transparency
(for detail or sky). If you have odd number of image in row may need one
more layer. Sorry if this is confusing this link may help if you look at
movie of my layers.
http://www.inertia-llc.com/sandbox/realviz/
With what I describe on the page above its a pain because I have to delete
images in Stitcher then render, then undo then delete different set then
undo etc Will around this same time I was learning how to use the Batch
Render feature of Stitcher using the command line terminal (not sure I can
explain this I don't have great grasp). As it turns out also the XML code
used in the Realfiz file is pretty simple and I was able to figure out how
to change one line of code that tells Stitcher what to render. So now I just
stitch like I normally would then quit Stitcher. I make 5 copies of the
Stithcer file and open with text editor and edit this line.
<MOSAIC n="_2" sl="1-10">
Sl="1-10" renders all images but you can copy of file so one looks like
this.
<MOSAIC n="_2" sl="1 3 5 7 9">
And the other like this.
<MOSAIC n="_2" sl="2 4 6 8 10">
Here is link to longer description. (look for mine near bottom of page)
http://www.realviz.com/support/public/forum/read.php?f=4&i=1475&t=1404
Now everything above here is not to deal with big distortion problems. Its
to address custom control of blending and also subtle offset ghosting of
lines and texture (through manual blending). This way you can make a
non-perfect pano look perfect.
--
David Goldwasser
Inertia, LLC
ph: 901.526.4562
fx: 877.873.2331
email@hidden
http://www.inertia-llc.com
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