Yo! Lev
All your postings do not appear in my email client... empty post.
How many times do you need to be told?
Love... John
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I am grateful for the suggestions for a workaround to the line artifact problem
in Enblend.
It seems to me that this bug is serious and fatal, and that workarounds should
not be needed.
I understand that this program misbehaviour has been recognised.
Can I assume that the the upcoming revision
Yuval...
I don't know why, but your postings are not appearing in my email clent,
Windows Mail.
John.
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Hi Panoheads...
I have been stitching and enblending sixteen 15Mpix images (8x2), producing
195Mpix pictures.
I am being bothered by some odd artifacts appearing in the output.
The artifacts consist of one or more dead straight lines, spanning up to a half
of the width of the pictures and
I am just trying to prepare a lens profile for an 80mm medium telephoto lens.
I intend to use EXIF for FoV and crop factor, and ensure that the optical axis
is at right angles to the axis of rotation.
My question is:-
Is it OK to use a near (c.5 metre), feature rich target for this purpose when
Pano fans might find this article about GigaPan to be interesting...
http://www.independent.co.uk/news/media/desktop-travellers-visit-the-world-in-hd-as-dubai-steals-record-from-paris-1970727.html
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Erik,
Utterly awesome.
It worked first time (no need for the shortcut with .bat on desktop), and I
added the newline.
I've accomplished four hours work in ten minutes, start to finish.
What a nice man!
Talk again soon.
John
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Mick...
This sounds like a good suggestion but, it has to be properly expanded to be
useable.
John
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Thanks...
Xplorer2 Lite does not enable the display of more than one column.
Also, the P commands are disabled.
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Well...
I've installed ImageMagick.
I'm completely baffled, I'm offered a grey window with very few options.
As for shell scripts... I can't even find the command line!?
Come to that, how am I supposed to specify the particular folder?
John
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After I navigate to the required folder at the dos command prompt, am I
supposed to invoke $magick before I enter the string:- identify -format
[\%f\,%w,%h], *.jpg myfile.txt--?
Or... does the app have its own command line?
Their website is comprehensive... but it is an IT disaster.
I am still
When I produce image display websites, I need to provide the image file-name,
width and height, as literal JavaScript arrays... like this...
[file.jpg,720,560], ...
How can I convert folder listings (Win) into a suitable, specifiable text
representation?
I appreciate that this is a bit off
It is not so much that I need an all-singing-and-dancing image processor...
More that I just want to translate system folder listings into text.
Although I cut my IT teeth on DOS 4, is there an application that would help me
with this, a bit more WYSIWIG?
I do actually understand the basic
Hi Ryan...
It shouldn't fail because it wasn't necessary.
There is more to the issue.
Yeh, I just guessed, too many people make work for nothing.
Best regards, John
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A
Why are you trying to exposure optimise a scene series that probably doesn't
need it?
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Hi Harry,
I think your pano head is brilliant, really cool.
It just goes to show that a little ingenuity can save a lot of money and still
produce good results.
Using Meccano, as you have done, should make it possible for almost any camera
to be properly mounted.
You must post a link to it
Hi Emad...
I appreciate your comments.
Need to make base plate adjustable like your camera plate is. It is needed due
to different lenses.
Some cameras tripod socket is not right in the middle. Now where you mount
camera, it must have a new adjustable plate to accommodate different tripod
Thanks for the good feedback on my new pano head (PHead).
I am not planning to make any more... my fingers are raw!
A purpose of this project is to make explicit the functional design parameters,
and to explore design requirements for the home constructor and the low-cost
manufacturability of
Here is a first look at the pano head that I have been making.
http://www.w3a2z.net/Phead/
John
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I simply don't see why you are attempting to stack day and night pix.
Why don't you just produce two separate panos, same lens and PoV?
Nice effect.
John
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Wrong approach for desired result.
Ridiculously over-complicated.
Why don't you just produce two separate panos, same lens and PoV?
John
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The proper approach to a project of this kind is careful thought, preparation
and execution.
It is silly to expect to achieve good quality results by the post-hoc
manipulation of imprecise or inconsistent input data.
The easiest approach is to ensure that the images are taken from the same
Remember, part of the information that any database would require would be the
resolution of the sensor, as the distortion parameters relate to the pixel
dimensions of the image.
John
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I think that it is worth noting that Canon bundle software that corrects
distortion, vignetting and TCA - for their own recognised lenses.
I recently upgraded to a 500D from a 350D and, naturally, Adobe Camera Raw CS2
did not play with the new raw.CR2 files.
When I looked at Canon's bundled
There is something wrong with this pano head.
Can you spot it?
http://cgi.ebay.co.uk/NEW-Pro-Panorama-Tripod-Head-Gimbal-Bracket-Kit-K7G_W0QQitemZ370247498055QQcmdZViewItemQQptZUK_CamerasPhoto_CameraAccessories_TripodsSupports?hash=item5634787947
It would be funny - if people didn't pay for this
Rodney,
Dump the Assistant tab.
Just work through from images, control points, exposure, optimise, clean
CPs, re-optimise if necessary, preview (straighten, center, fit), stitch.
Look at your results.
Surprise yourself !
John
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A lens profile should be created in fairly well controlled circumstances, don't
worry too much for now.
85mm is within the ballpark for a lens of your type, there is plenty of margin
for error if you are working outside.
Note that optimisation preceeds stitching, and can be repeated after
Thanks, Bruno, for a useful and informative post.
I didn't know that!
I suppose some allowance also needs to be made for seam wander.
However, it does suggest the point that higher resolution sensors may well need
less overlap, the seam has absolute dimensions.
It didn't occur to me that points
Good comment,
I think the point to emphasise is that parallax correction can be fairly
approximate, and still provide good results.
Parallax accomodation is only critical when producing images of near fields,
such as interiors at high resolution, and with longer focal lengths.
Still, do
, then
optimise everything.
See how you get on, good luck.
John McAllister
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To post
If you sort out parallax, just roughly, then where in the picture you put your
points, near or far, isn't too important; choose far.
When choosing CP sites, just place your points practically nearest to the sides
and corners of both images.
I was wrong to suggest using the centre of the overlap
Image overlap -
intererests me as a practitioner; and there is clearly plenty of experience out
there.
I have found that shorter lenses, with greater FoVs, tend to need greater
overlap but this is to ensure sufficient overlap in the finished stitch, to
reduce necessary cropping following
By deep, I meant a large VFoV.
I'm rather hoping to undertake some interior survey work.
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Evening,
I am building another pano head (the fourth) which will have a rail allowing
the camera mount to be moved back sufficiently to eliminate parallax.
I am planning to use it to produce high resolution images for very large,
detailed prints.
Presently, I use a wide angle lens (10mm, crop
Just input your best guesses.
Hugin will probably cope.
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To post to this group,
A tribute to hugin... simply the best... and good attribution.
Be proud lads, for exemplary work.
I just updated my hugin after THREE years, and I am bowled over by the
improvements.
Marvellous.
John, a veteran.
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Hi...
I've done a lot of work producing web/javascript pano and picture viewers.
I would be happy to correspond.
http://ww.panavista.eu/
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If anybody wants to set up a pano sharing website, I would be happy to share
and adapt the code from my website, http://www.panavista.eu/ which is
designed to allow sourcing from multiple servers, eg. members host their own
pictures and content lists.
John McAllister.
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The lens distortion parameters of any particular lens @ focal length x are also
dependent on the camera sensor dimensions.
Lists of distortion parameters are derived from specific lens/sensor
combinations (without specifying the sensor characteristics).
I would strongly suggest that
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