In the terminal, info cpfind gives me this:
Matching strategy
All pairs
This is the default matching strategy. Here all image pairs are matched
against each other. E.g. if your project contains 5
images then cpfind matches the image pairs: 0-1, 0-2, 0-3, 0-4, 1-2,
1-3, 1-4, 2-3, 2-4 and 3-4
This strategy works for all shooting strategy (single-row, multi-row,
unordered). It finds (nearly) all connected image
pairs. But it is computational expensive for projects with many images,
because it test many image pairs which are not
connected.
Linear match
This matching strategy works best for single row panoramas:
cpfind --linearmatch -o output.pto input.pto
This will only detect matches between adjacent images, e.g. for the 5
image example it will matches images pairs 0-1, 1-2,
2-3 and 3-4. The matching distance can be increased with the switch
--linearmatchlen. E.g. with --linearmatchlen 2 cpfind
will match a image with the next image and the image after next, in our
example it would be 0-1, 0-2, 1-2, 1-3, 2-3, 2-4 and
3-4.
Multirow matching
This is an optimized matching strategy for single and multi-row
panorama:
cpfind --multirow -o output.pto input.pto
The algorithm is the same as described in multi-row panorama. By
integrating this algorithm into cpfind it is faster by using
several cores of modern CPUs and don't caching the keypoints to disc
(which is time consuming). If you want to use this
multi-row matching inside hugin set the control point detector type to
All images at once.
After that, it goes on to cover "Keypoints caching to disk".
whereis shows cpfind at /usr/local/bin/cpfind.
Ideas?
On 6/17/25 10:31, 'T. Modes' via hugin and other free panoramic software
wrote:
GnomeNomad schrieb am Dienstag, 17. Juni 2025 um 22:12:28 UTC+2:
How so? When I look through CPFind's command line options, there's
no mention of it. I have cpfind 2024.0.1.ead3af10a01a.
I don't know where you look.
>cpfind --help
Hugin's cpfind 2024.0.1.ead3af10a01a built by Thomas
based on Pan-o-matic by Anael Orlinski
<snip>
Matching strategy (these options are mutually exclusive)
--linearmatch Enable linear images matching
Can be fine tuned with
--linearmatchlen=<int> Number of images to match (default: 1)
--multirow Enable heuristic multi row matching
default matching strategy, keep for backward reason
--prealigned Match only overlapping images,
requires a rough aligned panorama
--allpairs Match all image pairs (slow)
<snip>
And then it is described on the help page for cpfind. Also availabe
online at https://wiki.panotools.org/Cpfind#Linear_match and
https://wiki.panotools.org/Cpfind#Matching_overlapping_images_.28prealigned_panorama.29
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