Stefan Peter | 1 May 17:36 2016
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Re: Re: Mac Build

On 28.04.2016 23:36, Sukima wrote:
> I don't wish to detract this thread to much from finding a stable build
> for Mac users but when that task is complete it leaves a burning
> question: How does the Hugin community prevent such a  tragedy in the
> future?

I think that there is only one way: participation. The sources of the
development version of Hugin are freely available and can be compiled by
any user on any operating system she or he are interested in.

I, for example, do nightly builds for several Ubuntu versions. So
whenever something breaks these builds, I can speak up. And I get plenty
of help from other builders and Thomas, the main developer, in these
cases. This results in much less problems showing up when a release happens.

These nightly builds are scripted and run with no interaction required
every night. Of course, when something breaks I have to interfere. And
as my are targeted towards the Ubuntu crowd, the actual building and
distribution is automated, curtsey of the invaluable launchpad.net
infrastructure. However, if anyone is interested in the scripts, they
are available at
https://stefanpeter <at> bitbucket.org/stefanpeter/nightly4hugin.git

Producing nightly builds for your operating system of choice has another
benefit: There are much more users involved in beta
testing when nightly builds are available. So the overall quality of
Hugin increases by following the opensource mantra "release early,
release often".

Of course, nightly builds of the development version may be broken from
(Continue reading)

Niklas Mischkulnig | 30 Apr 12:02 2016
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Re: Mac Build

Same as before.

Niklas

Am Freitag, 29. April 2016 17:01:32 UTC+2 schrieb T. Modes:
Hi Niklas,

Am Freitag, 29. April 2016 13:00:40 UTC+2 schrieb Niklas Mischkulnig:
Unfortunately neither is working.

That's strange. Maybe we need to locate the error more precise. I'm attaching 2 patches.
Please apply only one at once. If none of the both files prevents the crashes, I have searched at the wrong place.

Thomas

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Donald Johnston | 26 Apr 18:51 2016
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Re: Mac Build

Thomas, I use a display profile created by Spyder4Pro.  The contents of the system tab from Hugin are:

Operating System: Mac OS X (Darwin 15.4.0 x86_64)
Architecture: 64 bit
Free memory: 0 kiB

Hugin
Version: 2016.1.0 built by Niklas Mischkulnig
Path to resources: /Applications/Hugin_2016/Hugin.app/Contents/Resources/xrc/
Path to data: /Applications/Hugin_2016/Hugin.app/Contents/Resources/xrc/
Hugins camera and lens database: /Users/donaldjohnston/.hugindata/camlens.db
Multi-threading using C++11 std::thread and OpenMP

Libraries
wxWidgets: wxWidgets 3.0.2
wxWidgets Library (wxMac port)
Version 3.0.2 (Unicode: wchar_t, debug level: 0),
compiled at Apr 17 2016 17:11:02

Runtime version of toolkit used is 10.11.

libpano13: 2.9.19 
Boost: 1.60.0
Exiv2: 0.25
SQLite3: 3.8.10.2
Vigra: 1.10.0
LittleCMS2: 2.7

So I see no mention of a profile but I’ve attached the icc profile I use.

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Attachment (DGJ MacBook Pro): application/octet-stream, 13 KiB



On Apr 26, 2016, at 1:12 AM, T. Modes <Thomas.Modes <at> gmx.de> wrote:



Am Montag, 25. April 2016 21:50:44 UTC+2 schrieb Niklas Mischkulnig:
I first noticed that error, when converting the raw images from Sukima's workflow thread to jpg using Adobe Camera Raw, the converted images are attached (in sRGB and AdobeRGB, though both cause the same error)

lcms: Error #12288; Output profile is operating on wrong colorspace

All affected files contains an icc profile. But I don't get an error.
Can you check if Hugin has found a monitor profile? (Go to about screen, tab system, is there a line "Monitor profile:.."? If yes, please provide the file mentioned here.)

Thomas

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Michael Perryman | 26 Apr 14:15 2016
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Creating stereo pairs: problems getting started

I am trying to use Hugin to "align" (optimise) stereo pairs. I have followed the stereo tutorial at:
http://vndlinuxphoto.blogspot.co.uk/2011/01/stereo-image-alignment-in-hugin.html
which works fine in command line mode. But it does not give me full control of the tuning options.

So I have been trying to do the alignment from the GUI, without success. I attach two screenshots showing my attempt.

fig1.png shows my "photo" panel, with my "feature matching" and "optimise" options at the bottom. I have created a "Control Point Detection" mode which I have labelled "perryman-stereo" with the arguments shown in the insets.

fig2.png shows 21 control points that I have added manually to both the left and right images. Following the tutorial, all are added as "Horizontal Lines", except for one (#11) which I have designated as "normal" (to define the stereo screen plane). The "optimiser" result is shown in the inset. It shows very large distances, standard deviations, and maximum. I understand that I can iterate (add, delete, or tune) the control points, but this has little effect on the overall result.

I suspect that I have not set up the required parameters for the GUI in the correct way (e.g. the CPD) for these stereo alignments.

Can anyone point me in the right direction?

Thanks
Michael

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Mike Mackinven | 22 Apr 14:36 2016
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Errors, can't seem to fix

I am getting this error:

Error. External program enblend not found as specified in preferences, reverting to bundled version

And then Hugin stalls and won't do anything. I have redownloaded Hugin twice now, deleted all pref files etc, but still get this error and Hugin will not stitch anything.

Any tips on fixing this issue?

Cheers!

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Simon Bethke | 22 Apr 00:14 2016
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Stereoscopic Panoramas

Hi,
I am an amateur photographer and lately got a Gear VR device so I wanted to try some VR Stuff.
Testing free panorama tools, I found that Hugin was the only free tool providing decent results. Also, my 'Fisheye' lens uses Stereographic projection, so most other tools are not even able to stitch my input material correctly.

Now, the last days, weeks, ... even months(?) ... I am trying to find a good way to capture stereoscopic panoramas with my one camera. After alot of trial and error, I found that the best method for me is to place the camera left and right the NPP and take 12 images for the 360° circle. Now with hugin, I align them and export the frames but don't stitch them yet. For that I use the multiblend tool and first extract its seams. Then I edit the seams that left and right eye matches and blend with these optimized seams. My problem with this method is, that by taking 12 left-eye images and afterwards 12 right-eye images, the time between the left and right eye is to long: Clouds pass by and even the sun travels. Flipping between left and right is inpractical and causes many mistakes if I try to do it fast.

What I would like to do is to have the camera in front (not left or right) of the NPP, take 12 photos and use only right image-halfes for the left eye and vice versa. This works more or less, but here the big issue is, that the paralaxe gets too strong and the stiching result is a mess with alot of visible seams. At this place I wish it was possible, that hugin looks for areas with bad control-points. If the photos were taken from a tripod (with paralaxe), the error should equal the depth of the control points. At least if there are areas with a bigger error (and similar error vectors) and others with less error, the software could treat this as depth. Now with depth information of the control-points, this becomes something similar to visual sfm. The controlpoints are like a sparse point cloud and I'd suggest simply interpolating the areas between the controlpoints to get a perfect stitching result.

If hugin could actually support stitching photos that are taken off the NPP. It could also assist creating stereoscopic panoramas.

What do you think about this? Is Hugin still actively developed or is it rather a complete product which is just supported?

Kind Regards,
Simon

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Sukima | 20 Apr 15:44 2016
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Need help / Feedback on my workflow

I need some feed back on how I work with making panoramas. I documented my work on my blog and copy/pasted it here. I would really appreciate any advice. Thanks.


I often thought my workflow was a bit unique. Though recently I found that it is not that unusual. I wanted to document the workflow for reference and because I've been running into some difficult results in my final panoramas and having the steps I took to get there might allow myself to get better feedback from others. At the bottom of this post is the final output. For those interested I am also offering my original images (in RAW format) to see if anyone might be willing to offer advise. I don't know if my troubles stem from my Lens, my Camera, my software, or my workflow. Any advice would be greatly appreciated.


Taking the pictures


I am using a Canon EOS Rebel XS (A.K.A. EOS 1000D) with a Bower 8mm Fisheye lens (A.K.A Pro-Optic, Samyang, or Rokinon). I mount my camera on a Panosaurus panoramic head on a tripod. I believe I've calibrated the parallax correctly to the best I could through the view finder and by taking several pictures with a close object and far object and rotating back and forth.

I setup the tripod and start taking photos every 60 degrees (six images) around, one zenith, two nadir images 180 degrees from each other, and a final hand held nadir just in case.

I use a wired remote shutter to lessen the jitter. I try to sample several angles before picking the final settings I use in manual mode. Since the lens doesn't have any communication with the camera I manually dial in the F-stop. I set the focus to infinity. I use the Raw format.


Pre-processing photos


I used RawTherapee to pre-process the Raw files I downloaded from the camera. Since the auto settings seemed pretty good I kept them except I set the white balance to Shade. I batch saved all the images to 16 bit TIFFs (Uncompressed).


Stitching


I used Hugin set to the Expert mode. I'm using version 2014 on the Mac because (at the time of this article) it is the only version available for the Mac. In Expert mode I add all the images including the hand held nadir. I used the Full Frame Fisheye with the Focal Length of '8' which in the past seemed like it worked. Mostly guess work here. Anyway Hugin auto populates the field of view for me and I go with it.

Than I opened up the mask section and carefully draw exclusion masks around the tripod in all three nadir shots. Finally I click optimize and then open the GL Previw window. And everything looked great. I then opened the stitcher view and selected a width of 1024 so the rendering would be super fast while I previewed. I found that the GL Preview glossed over some artifacts that you don't notice till the final renders.

I noticed that the hand held nadir shot (although almost aligned) had parallax issues. Mainly since the nadir was a set of wood boards. So I gave up on the idea that the hand help nadir image was worth anything and deleted it from the image list in Hugin. I went back to the stitcher and selected Calculate optimal size and created a final version. Now with a gaping hole where the mask for the tripod was.


Editing the nadir


Since I use the GIMP to edit photos I have to convert the 16 bit TIFF to an 8 bit TIFF using GraphicsMagick:


$
gm convert MillPano.tiff -depth 8 MillPano8.tif


Then I use the Panotools scripts to create my set of cubes:


$
erect2cubic --erect=MillPano8.tif --ptofile=cubic.pto $ nona -o cube cubic.pto


In the GIMP I edited cube0005.tif and used the clone tool to carefully reconstruct the wood planks from the sides (this was challenging using a touchpad). Saved it to cube0005a.tif.

Finally I reconstructed the panorama:


$ cubic2erect cube000{0,1,2,3,4,5a}.tif MillPanoFinal.tif


And this is the result:



Questions

  1. Is there a way to get Hugin to use a hand held nadir shot when the shot doesn't line up well with the shots taken via the tripod head? Would make nadir editing easier.
  2. Why is the final output blurry? Is it chromatic abrasion? Bad stitching? Crappy camera/lens?

Download the Original Images. (100MB Zip)

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Abrimaal | 19 Apr 05:39 2016
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Control points editor / Line detection / Projection of a single image

Build 2016:

The line find routine detects horizontal lines in the images, but they are listed as vertical. It causes problems with straightening of panoramas.

Panorama editor window:

When I want to move a control point, in about 30% cases a new point is added instead. Is there any difference in the mouse click between moving existing points and adding new ones? I guess the behaviour depends on lucky clicking a single pixel on the screen, what is not easy. Proximity area was introduced in computer games in the 90s, to set the difficulty level of shooting enemies and being shot by them. This could be considered when moving and adding control points in the panorama editor.

Unexpected auto-zooming when moving (adjusting) points. I could understand if the window was auto-zoomed every time or never, but it happens unexpectedly. The window could be resized by the mouse wheel or keys +/-

The same refers to displaying the fine zoom small square. Sometimes it is displayed, sometimes not.

To change projection of a single image and save it as "panorama".

Detecting horizontal lines or adding them manually, as well as vertical ones could create a perfect equirectangular grid, independently of the lens and projection, at least in the desired area of the image.

This can be used for adjustment of the projection and perspective of single images (eg. previously stitched panoramas in other programs, that did not save editable project files). It works with two images, but it doesn't work with a single image - the button Create panorama is inactive.

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Livio Scalmati | 16 Apr 15:07 2016
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night panorama

anybody can help me in creating a panorama using 6 photo, taken by night ?
It's a panoraman with my town and the moon; but due low lifght level I am not able to create manuallythe panorama
And automatic do not run seccesflully.
Thanks

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Gabriel Perren | 15 Apr 17:44 2016
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In-source builds are not allowed.

I'm trying to install Hugin in my elementary OS Freya 0.3.2 (https://elementary.io)

I've followed both types if installation instructions:

$ cmake -DCMAKE_INSTALL_PREFIX=/usr/local .
$ make
$ make install

and

$ cd hugin
$ mkdir mybuild
$ cd mybuild
$ cmake -DCMAKE_INSTALL_PREFIX=/usr/local ../
$ make
$ make install

Both fail with the same error after running 'cmake':

CMake Error at CMakeLists.txt:7 (message):
  In-source builds are not allowed.


-- Configuring incomplete, errors occurred!

What can I do to fix this?

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Video tutorials

Hi,

 
Hi, I've post a survey recently about which tutorial people would like me to make about panoramic photography. Here the preferred one on how to edit the nadir without using cube faces: https://www.youtube.com/watch?v=5RlNsXHq790 Although I've used Hugin, this is a general concept that can be done in other tools.

And here another one on leveling a panorama https://www.youtube.com/watch?v=OVJ6mGQlIxU I've shown 3 ways to do that: automatically, manually or using vertical/horizontal lines. This has been the second one on the survey.

Cheers,

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Gmane