Hello Frederic,
as a first step I would have a look at the metadata stored in two of
those problematic files with identical time stamps using ExifTool by
Phil Harvey. If that isn`t already working on your system you can get
instructions for your OS on www.exiftool.org
I can only describe the way to get it running on Mac OS X or Ubuntu (in
my case it is Xubuntu). Or just check out this terminal command to find
out if it is already working on your system:
- check the version number:
exiftool -ver
- or you may want to find out where it is installed:
which exiftool
It works if you get something back like this
carl@carl-MacPro:~$ exiftool -ver
12.76
then just type the command
exiftool
and also add a blank.
Now drag one of the files into the terminal window to include the path
to the file and click on the enter/return button of your keyboard. This
will list all metadata your image file contains.
My Nikon files also include subseconds like here in one of my example files:
Date/Time Original: 2025:04:28 16:00:24.49
and also the original file number:
File Number: 7798
To avoid situations like the one you mentioned I always use an exiftool
renaming command (example below) to process the names of my RAW (NEF)
files. My Nikon typically saves NEF as well as JPG files It uses a
similar structure like your YYYYMMDD_hhmmss but also adds the original
file number that is part of that very simplistic "IMG_1234" naming scheme.
my original file _CVE9170.NEF in folder /home/carl/Bilder/
using this exiftool command (working on Mac as well as on Linux, it
should be one line without a line break)...
exiftool '-FileName<${CreateDate}_$filenumber.%e' -d
cve_%Y%m%d-%H%M%S%%-c /home/carl/Bilder/
... processes all files in folder "Bilder" and results in my above
example file renamed to
cve_20250607-134405_9170.NEF
Does that help?
Cheers,
Carl
Am 23.06.25 um 23:40 schrieb Frederic Da Vitoria:
Hello,
I have used Hugin to generate a kind of time-lapse from 91 images. Not a
real time-lapse, because the images are not evenly spaced, sometimes they
are a few minutes distant, sometimes I have 2 images in one second. After
carefully cleaning the control points, I got Hugin to generate me
the aligned images using Remapped images: No exposure correction, low
dynamic range. So far, so good.
My problem is that while I started with images named 20250616_224427.jpg,
20250616_224428.jpg, 20250616_224430.jpg and so on, the aligned images were
named 20250616_224427 -
20250616_225537_1_exposure_layers_0000.tif, 20250616_224427 -
20250616_225537_1_exposure_layers_0001.tif, 20250616_224427 -
20250616_225537_1_exposure_layers_0002.tif and so on. I have lost the real
time info in the name, and the aligned images don't have any EXIF/IPTC data
from which I could rename them back to their original names.
Is there a way to recover the original names?
Frederic Da Vitoria
(davitof)
Membre de l'April - « promouvoir et défendre le logiciel libre » -
http://www.april.org
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