Winter 2026

21. 2. 2026

Winter mountain road, phone snapshot.
Slight vignette added with Gimp.

Yeah, but can I use stuff from ‘motion picture’ frames, like falling snow particles to compose on top of the image?

sudo apt install libimage-exiftool-perl

Figure out what kind of movie addendum is it

exiftool image.jpg | grep -i motion
# returns
Motion Photo                    : 1
Motion Photo Version            : 1
Motion Photo Presentation Timestamp Us: 558505
Directory Item Semantic         : Primary, GainMap, MotionPhoto
Motion Photo Video              : (Binary data 1935798 bytes, use -b option to extract)

Extract video

exiftool -b -MotionPhotoVideo image.jpg > motion.mp4

6.9M b 21 Feb 19:48  image.jpg
1.9M b 21 Feb 19:53  motion.mp4

video to frames

mkdir frames && mv motion.mp4 frames/ && cd frames
ffmpeg -i motion.mp4 -vsync 0 frame_%04d.png 

The extracted video (and frames) is only 1920x1080px in this case.

Buddha, Coulda, Woulda.

Anyway, show me some diffs between this extracted frames (chatgpt)

for i in $(seq -f "%04g" 1 27); do
next=$(printf "%04d" $((10#$i + 1)))
magick frame_${i}.png frame_${next}.png \
    -compose difference -composite diff_${i}.png
done

Produces bunch of bw diff images, where the snow droplets are clerly visible on some.

Comping some of those diffs in ‘screen & blur’ or ‘lighten only’ modes produces a little bit of kitch magic (diffs are to small for a lot of magic).

misc