image-corrupter

README

image-corrupter

Simple image glitcher suitable for producing nice looking locker backgrounds (swaylock, i3lock, ...).

About this fork

At the moment, this fork is just a personalized version of the original with minimal code changes.

Getting Started

$ git clone https://github.com/kdevo/image-corrupter
$ cd image-corrupter && go build
$ image-corrupter wallpaper.png out.png && xdg-open out.png

Alternatively, you can use go install github.com/kdevo/image-corrupter to install. Then, the binary will be at $GOPATH/bin/image-corrupter.

At the moment, you can only pass and output .png images. But that's enough to work well with grim + swaylock, scrot + i3lock.

Screen locking example usage (swaylock + grim)

As image-corrupter only glitches the image for a cool background, you'd have to set up a lock script.

Example screenshot lock script for Wayland:

#!/usr/bin/env bash
image=$(mktemp)
grim -t png -l 0 -s 0.75 - | image-corrupter -mag 4 -boffset 2 - > "${image}"
trap 'rm -f -- "$image"' EXIT
swaylock -i "${image}"

The script above takes a screenshot with grim passes it through the pipe to image-corrupter for distorting it, and then locks the screen using swaylock. The image is saved in a temporary file that is removed again after swaylock is done using it.

Less distorted image

Default config is pretty heavy-handed. To get less disrupted images you may want to reduce blur and distortion:

$ image-corrupter -mag 1 -boffset 2 wallpaper.png out.png && xdg-open out.png

Examples

Images using the default parameters:

With custom parameters:
Before:

After (custom parameters and ImageMagick dim):