rapid-blur

A simple box-blur based on i3lock-fancy-rapid.

The script was originally intended to be used with swaylock, but can generally be used for any blurring or with other screen locking utilities.

Installation

Call makein the root directory to build the binary rapid-blur. A subsequent make install call will add a symlink to /usr/bin.

Usage

You can generally use the script to blur any image with:

rapid-blur IMAGE OUTPUT 

To customize the level of blur, one can set the radius with -rand times with -t

rapid-blur -r 5 -t 3 IMAGE OUTPUT

To pixelate instead, pass the -p flag

rapid-blur -p IMAGE OUTPUT

Using with a screen locking utility (swaylock)

To use it with swaylock, you can simply include it in a simple script similar to the one below:

#!/bin/sh
DISPLAYS="$(swaymsg -t get_outputs -p | awk '/Output/ && !/disabled/ {print $2}')"
# Reverse Displays (So external 4K is started first)
DISPLAYS=$(tac -s ' ' <<< $(echo $DISPLAYS))

BASE_FILE="${TMPDIR:-/tmp/ss}"
for display in $DISPLAYS; do
    FILE="${BASE_FILE}${display}"
    grim -o "$display" "$FILE.png"
    
    rapid-blur "$FILE.png" "$FILE-out.png" &
	args="$args -i ${display}:${FILE}-out.png"
done
wait
swaylock $args