Datamosh vs Pixel Sorting
データモッシュ / ピクセルソーティング
Both sit in Digital Image Techniques, so the question is not what they belong to but how they behave. They are reached for with some of the same intent, which is where they get confused.
Datamosh
Deliberately breaking a video's keyframes so that the previous image is dragged along and dissolved by the next motion. The technique turns the inner workings of the compression algorithm into an aesthetic.
Pixel Sorting
Pixel Sorting selects image pixels by a brightness or hue threshold and reorders them within rows or columns, drawing long color streaks out of a still-recognisable source image. Kim Asendorf's released code enabled widespread reimplementation.
| Datamosh | Pixel Sorting | |
|---|---|---|
| Era | 2005– | 2010– |
| Family | Digital Image Techniques | Digital Image Techniques |
| Kind | Technique | Technique |
| Cues | Melting, flowing frames / Macroblock debris / Motion vectors dragging pixels / Compression exposed | Long horizontal or vertical pixel streams leaving a figure or landscape / Only part of an outline flowing into bands / Unselected areas preserving the source image / Local color bands smoothly ordered by value or hue |
| Best used for | Music video where the cut itself becomes the spectacle and dissolves · Showing clouded memory or consciousness through how the image breaks | Covers and posters that damage part of a photograph while keeping the subject legible · Transitions that turn a frame's color distribution into bands leading into the next shot |
| Type | Let type read for a few frames before the melt, then release it | Keep copy outside the sorted field, or flow only part of a headline along the same axis while preserving body legibility. |
| Composition | Shoot both clips with matching motion to control the drag direction | Choose one sorting direction, tune the threshold to the subject and preserve islands of the source image. |
| Material | Set compression first and choose keyframe intervals as a creative call | Select pixels by value, saturation or hue and reorder only contiguous intervals within a row or column. |
| Caution | Melting the whole piece so nothing is ever recognizable, leaving no intact image for the collapse to work against. | Sorting the entire frame removes the tension with its source and leaves an ordinary striped pattern. Decide what breaks and what remains. |