align_image_stack.exe produced just one output file.

[Daniel....@gmx.net]

Hallo,

I tried to align some images as a preparation for focus stacking with enfuse.

I issued the command

/cygdrive/c/Program\ Files/Hugin/bin/align_image_stack.exe -v -m -a Aligned f*g > output.txt

from a tcsh under cygwin.       The command produced a single output file  (Aligned0000.tif).

I expected one output file for each input file.

The corresponding files as well as output.txt are available under

https://www.dropbox.com/sh/ilcwvufkee3a9tj/AADEOatnIGVL6sLGKRxK6E0wa?dl=0

Daniel

[T. Modes]

Hallo Daniel,

Am Mittwoch, 16. Januar 2019 20:06:40 UTC+1 schrieb Daniel....@gmx.net:

from a tcsh under cygwin.       The command produced a single output file  (Aligned0000.tif).

I expected one output file for each input file.

Align_image_stack has problem with these images. There are only some very small areas which are in focus and the out-of-focus area have nearly no structure.

So the found control points are of bad quality. As a consequence after control point pruning the reference image has no control points. When you now optimize

with hfov (-m switch) the hfov of the images is optimized to zero (but the hfov of the reference is not optimized and stays high).

The zero hfov results now in the empty output.

I fear these images are not good suited for align_image_stack. (For debug you can output a pto file (-p switch) and inspect the pto file in Hugin.)

Maybe playing with the parameters -t and/or --corr can help in this case. But don't expect wonders.

Thomas