Effect
Pixel Sort
Sort pixels along thresholds for glitchy streaks and bands.
Pixel sorting rearranges pixels along a threshold so ordered streaks replace natural detail. Kim Asendorf developed the technique in 2010 and released open-source Processing code a couple of years later; it spread quickly through glitch communities, Tumblr aesthetics and later advertising.
Asendorf has noted that the process is controlled rather than a true malfunction: fake glitch with a dial. Threshold and direction set how much of the original photograph survives.

Properties
Sort by
metric used to order pixels in each run
Threshold
pixels below this stay unsorted (run breaks); lower = longer streaks
Direction
Pixel size
step coarseness along the sort axis
Strength
0 = off
Command line
Requires Rethings Pro. Install the tool from Rethings → Install Command Line Tool…
rethings apply --effect pixel-sort --set sortMode=0 --set threshold=0.2 -i input.jpg -o output.png