Re: [hugin-ptx] cpfind - no control points on large images

2017-08-30 Thread dgjohnston 

> On Aug 30, 2017, at 6:15 PM, Greg 'groggy' Lehey  wrote:
> 
> On Wednesday, 30 August 2017 at 13:27:20 -0600, dgjohnston wrote:
>> Hi, I running hugin as follows:
>> 2017.0.0.eac5e8cc546e built by Niklas Mischkulnig
>> MacBook Pro, macOS Sierra 10.12.6 with 8GB memory
>> 
>> When I load in large images cpfind doesn???t generate any control
>> points and I get an error message about ???Warning 2 unconnected
>> image groups found:[0], [1]???
>> 
>> This depends on the size of the two images I???m using in this
>> pano. The breaking points seems to be at about 6043x4033 pixels
>> (each of the two images at about 24.5MB jpegs). I say ???about???
>> because most of the time 6043x4033 works but that size has failed at
>> times; and ??? 6044x4034 fails most of the time but has worked.
>> 
>> Am I missing an image size limitation? I tried searching for this
>> but can???t find anything.
> 
> It's difficult to tell without seeing the images.  Can you post them
> somewhere (thanks for not including them in your mail message).

I didn’t want to put images up at first in case I was missing something 
obvious. Here is a link to the images on dropbox. They are the same two images 
but one set (5000 wide) works and the other (7000 wide) doesn’t work.
https://www.dropbox.com/sh/9o35ps53i5r8cvj/AADg-9bdH8BoKOhKDZmLKgjUa?dl=0 


Don

> 
> Greg
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Re: [hugin-ptx] cpfind - no control points on large images

2017-08-30 Thread Greg 'groggy' Lehey 
On Wednesday, 30 August 2017 at 13:27:20 -0600, dgjohnston wrote:
> Hi, I running hugin as follows:
> 2017.0.0.eac5e8cc546e built by Niklas Mischkulnig
> MacBook Pro, macOS Sierra 10.12.6 with 8GB memory
>
> When I load in large images cpfind doesn???t generate any control
> points and I get an error message about ???Warning 2 unconnected
> image groups found:[0], [1]???
>
> This depends on the size of the two images I???m using in this
> pano. The breaking points seems to be at about 6043x4033 pixels
> (each of the two images at about 24.5MB jpegs). I say ???about???
> because most of the time 6043x4033 works but that size has failed at
> times; and ??? 6044x4034 fails most of the time but has worked.
>
> Am I missing an image size limitation? I tried searching for this
> but can???t find anything.

It's difficult to tell without seeing the images.  Can you post them
somewhere (thanks for not including them in your mail message).

Greg
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[hugin-ptx] cpfind - no control points on large images

2017-08-30 Thread dgjohnston 
Hi, I running hugin as follows:
2017.0.0.eac5e8cc546e built by Niklas Mischkulnig
MacBook Pro, macOS Sierra 10.12.6 with 8GB memory
When I load in large images cpfind doesn’t generate any control points and I 
get an error message about “Warning 2 unconnected image groups found:[0], [1]”
This depends on the size of the two images I’m using in this pano. The breaking 
points seems to be at about 6043x4033 pixels (each of the two images at about 
24.5MB jpegs). I say “about” because most of the time 6043x4033 works but that 
size has failed at times; and … 6044x4034 fails most of the time but has worked.

Am I missing an image size limitation? I tried searching for this but can’t 
find anything.


Here is the log:

> Searching for control points...
> Hugin's cpfind 2017.0.0.eac5e8cc546e built by Niklas Mischkulnig
> based on Pan-o-matic by Anael Orlinski
> 
> The available memory does not allow running 8 threads parallel.
> Running cpfind with 6 threads.
> 
> Project contains the following images:
> Image 0
>   Imagefile: /Users/donaldjohnston/Pictures/2017-06  
> Yukon/2017-06-13/053_Yukon_DSC2046DonCamDxO.jpg
>   Remapped : yes
> Image 1
>   Imagefile: /Users/donaldjohnston/Pictures/2017-06  
> Yukon/2017-06-13/054_Yukon_DSC2047DonCamDxO.jpg
>   Remapped : yes
> 
> --- Analyze Images ---
> i0 : Analyzing image...
> i1 : Analyzing image...
> 
> --- Find matches ---
> i0 <> i1 : Found 0 matches
> 
> --- Find matches in images groups ---
> 
> --- Find pair-wise matches ---
> 
> --- Write Project output ---
> Written output to 
> /var/folders/__/vfghr3d56md75j262qvbhrgwgn/T/ap_resBX6CCx
> 
> Detection took 14.557 seconds.


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Re: [hugin-ptx] Re: Simple rotation/translation stitching

2017-08-30 Thread bugbear 

Roger Broadie wrote:


Of course, long linear features can offer control-point detectors difficulties if there 
are no distinguishing details on or near them. But in the case of your image showing the 
discontinuities the seam clearly passes near or even through plot numbers and they should 
give control-point detectors something to bite on.  Thus you could try dragging a 
rectangle around them and selecting that great standby "create control points 
here": see e.g.


I often (ish) use my camera and a pano head as a substitute for the A0 scanner 
I don't own, usually
for maps and newspapers.

In both cases I do NOT use automatically generated CPs. There is so much fine 
scale
repetition in text (all the printed characters are identical) and a map 
(symbols, text again)
that false hits are inevitable.

For truly large items, I don't use a pano head, but move the entire tripod and 
camera over
the item, grid-fashion. This is laborious to do, and laborious in hugin too.

 BugBear

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