Images to Animations

[dt-woods]

Using GIMP and FFmpeg (I installed FFmpeg w/ Imagemagick)

1. Load spatial data into QGIS
2. Create symbology (save symbology to text file)
3. Create layout (save layout in case you need to come back to it)
4. Add map(s), legend(s), and text
5. Export maps to images (PNG)
6. Open one PNG in GIMP
7. Open as layers the remaining images
   • order most recent layer at the top
8. Crop image to selection (draw a box around what you want)
9. Filters --> Animation --> Optimize for GIF
10. Export --> GIF
    • Check [x] As animation
    • Loop forever
    • Delay between frames (e.g., 150 ms)
    • Use delay entered above for all frames
11. Convert to video format
    • Update the -i filename and .mp4 output file name

      ffmpeg -f gif -i Untitled.gif -pix_fmt yuv420p -c:v libx264 -movflags +faststart -filter:v crop='floor(in_w/2)*2:floor(in_h/2)*2' Untitled.mp4

      Reference: https://gist.github.com/ingramchen/e2af352bf8b40bb88890fba4f47eccd0

[dt-woods]

How to crop a video using FFMpeg (video.stackexchange.com)

ffmpeg -i in.mp4 -filter:v "crop=out_w:out_h:x:y" out.mp4

where the options are as follows:

• out_w is the width of the output rectangle
• out_h is the height of the output rectangle
• x and y specify the top left corner of the output rectangle