1
\$\begingroup\$

With the idea of ​​doing false long exposure as found here:

I have a set of 934 images extracted from a 30-second video at 29 FPS. I tried the Photoshop method, but it is time consuming and too slow. I'm not very comfortable with programming, but I know how to use the terminal a little bit. With my terminal command, I get this:

C:\Program Files\Hugin\bin>align_image_stack -a C:\Users\strig\Videos\Sequence\1000.jpg 1001.jpg 1002.jpg 1003.jpg 1004.jpg
ERROR: caught exception:
Precondition violation!
Unable to open file '1001.jpg'.
(C:\daten\Hugin\vcpkg\buildtrees\vigra\src\ion-1-11-1-c16c9c8e90\src\impex\codecmanager.cxx:203)

Can somebody help me please?

Improve this question
\$\endgroup\$
2
  • \$\begingroup\$ For each of the images you need to add full path, C:\Users\strig\Videos\Sequence\1001.jpg, C:\Users\strig\Videos\Sequence\1002.jpg, etc \$\endgroup\$
    – Romeo Ninov
    Commented May 29 at 12:45
  • \$\begingroup\$ ok that's what I was telling myself \$\endgroup\$
    – Raphael Beguin
    Commented May 31 at 11:20

2 Answers 2

Reset to default
3
\$\begingroup\$

The output says: Unable to open file '1001.jpg'. The program can't open the file because it can't find the file; since you haven't specified the full path, the program assumes that the file is in the current directory, and it's obviously not there. You need to reference files accurately.

I'd also suggest that in general it's safest to enclose file paths in double-quotes, to ensure space characters are interpreted correctly.

Improve this answer
\$\endgroup\$
1
  • \$\begingroup\$ yeah also that's what I was telling myself Something like that? C:\Program Files\Hugin\bin\align_image_stack -a "C:\Users\strig\Videos\Sequence\1000.jpg 1001.jpg 1002.jpg 1003.jpg 1004.jpg" i've got C:\Program Files\Hugin\bin>align_image_stack -a "C:\Users\strig\Videos\Sequence\1000.jpg 1001.jpg 1002.jpg 1003.jpg 1004.jpg" align_image_stack: At least two files need to be specified \$\endgroup\$
    – Raphael Beguin
    Commented May 31 at 11:23
2
\$\begingroup\$

Normally, you work in the directory that contains the data, so you do:

cd C:\Users\strig\Videos\Sequence  
align_image_stack -a *.jpg 
# or
align_image_stack -a 1001.jpg 1002.jpg 1003.jpg ....

If Windows complains that it cannot find align_image_stack, then you specify the path to it in the command:

cd C:\Users\strig\Videos\Sequence
C:\Program Files\Hugin\bin\align_image_stack -a *.jpg
Improve this answer
\$\endgroup\$
6
  • \$\begingroup\$ yes I realized it later, but I don't know how to point to the directory Translated from french with google: which is normal since I either don't have the align_image_stack application in my images directory, or I don't have the images in the hugin application directory \$\endgroup\$
    – Raphael Beguin
    Commented May 31 at 11:47
  • \$\begingroup\$ so I used the append command found here Photography Metagithub.com/security-cheatsheet/cmd-command-cheat-sheet C:\Program Files\Hugin\bin>align_image_stack -a append "C:\Users\strig\Videos\Sequence\1000.jpg 1001.jpg 1002.jpg 1003.jpg 1004.jpg" align_image_stack: At least two files need to be specified \$\endgroup\$
    – Raphael Beguin
    Commented May 31 at 11:57
  • \$\begingroup\$ This is the purpose of the cd command. This makes your working directory the directory with the pictures, so if there is no path information in the file names they are implicitly taken from that directory. And to use the command , either it is in a directory in your PATH and you can just use the command name, or it's not and you have to give a full path to it. \$\endgroup\$
    – xenoid
    Commented May 31 at 12:01
  • \$\begingroup\$ after several unsuccessful attempts I copied the images into the folder and this is the result of the order !ibb.co/KwBrXtj \$\endgroup\$
    – Raphael Beguin
    Commented May 31 at 12:12
  • \$\begingroup\$ Yes because applications are prevented from writing files in a sensitive directory where you keep code. You have to keep them in separate directories. I can only help if you follow my instructions, not if you adlib on them. And this is no longer a photography problem, you will get more complete answers in a forum dedicated to Windows and its command line. \$\endgroup\$
    – xenoid
    Commented May 31 at 13:33

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.