When making an animation many times we want the scene to look painted, there are many effects that mimic this, but they are not very convincing so build a script to do it with G’MIC which has quite a convincing effect. The problem is that the sequence often creates flicker caused by creating each frame separately.
In this case, he paints the scene with the baby as if it were “The Starry Night” by Vincent van Gogh.
wget -c https://download.tuxfamily.org/4232/wordpress/2017/05/4232.cf-e2.gif
Extract the images using FFmpeg
ffmpeg -i 4232.cf-e2.gif w.%04d.png
stylize the sequence using G’MIC
ls w.*png | while read A; do
gmic $A _fx_stylize starrynight +fx_stylize 1,6,0,0,0.5,2,3,0.5,0.1,3,3,0,0.7,1,0,1,0,5,5,7,1,30,1,2,1.85,0 output result_$A
join everything using FFmpeg
ffmpeg -y -i result_w.%04d.png result.mkv