Himawari-8 GIF animation

These are some scripts to generate Himawari-8 GIFs using python and ffmpeg.

Here is an example of the output you can expect: https://imgur.com/Zonhp5y

Original idea: https://gist.github.com/celoyd/b92d0de6fae1f18791ef

The main difference between the original and this version is that this version works on Windows because it is almost entirely written in python. For generating the GIF from the image sequence, ffmpeg is called from a very simple batch file, that can be rewritten as a shell script for Linux users.

Installation

Needs at least Python 3.6 and ffmpeg (brew install ffmpeg)

1. python3 -m venv venv (creates a new virtual environment)
2. source venv/bin/activate (activates virtual environment)
3. pip install -r requirements.txt (installs dependencies)

Running

1. Edit config.py with the date range and zoom you want.
2. Run python run.py. This runs a couple of scripts.

Various scripts

1. fetch_many.py. This downloads all the source images
2. interp.py substitutes the "no image"-images at 14:40 and 2:40 with an interpolation of the images before and after the gap.
3. label_and_rename.py. Here you can determine how the timestamp should look. The images will be saved as "image1.png", "image2.png", because that makes life easier for step 4.
4. make_gif.py creates the GIF!