Helper functions for artwork resizing, combining, padding, etc.

artwork_post_processing.sh

# Combine multiple images into one (three singles into one row of three)
ffmpeg -i IMG_0021.jpeg -i IMG_0029.jpeg -i IMG_0026.jpeg -filter_complex "[0][2][1]hstack=inputs=3" combined.png

# Expand image by adding colored padding
convert unpadded.png -background "#ECE7DD" -gravity center -extent 7200x4000 padded.png

# Crop video, centered
ffmpeg -i in.mp4 -filter:v "crop=in_w-30:in_h-18" -c:a copy out.mp4

# Convert Quitcktime screen recording to gif
ffmpeg -i screen_recording.mov -pix_fmt rgb24 -r 20 -s 400x400 out.gif

# Image to hex outputs
convert hole.png txt: | grep -o "#\w*" | sed -e 's/^/"/g' -e 's/FF$/",/g' | tail -n +2 | pbcopy