Various glitching pixel filters or functions

### Filter

Use following filters with [[filter-channels]] function.

* Slitscan - x/y slitscan simulation based on wave functions
* Shift-channels - just shift channels
* Mirror - mirror image along different axes
* Slitscan2 - slitscan simulation based on vector fields
* Fold - apply vector field on the image
* Pix2line - convert pixel into horizontal line

### Machines

Short sketches operating on images/pixels.

* Blend - compose two images in glitchy way

All filters are equiped with random configuration generator.

(ABANDONED) Raymarching helper.

* http://www.iquilezles.org/www/index.htm
* http://mercury.sexy/hg_sdf/

Segment image into parts.

Currently contains only quadtree segmentation.

Image pixels as signal

### Pixels as Signal

`Pixels` (`Image`) can be treated as signal. Conversion to signal is based on strategies of converting image to RAW and then converting to audio. It includes channel data layout and packing into integer, encoding, endianess, etc.

To convert `Pixels` to signal use [[pixels->signal]] function. To convert back use [[signal->pixels]]. [[signal->pixels]] requires target `Pixels` object to store result of conversion. Target is mutated then.

To filter `Pixels` directly (without explicit conversion to and from Signals) you can use [[filter-channels]] with [[effects-filter]].

Set of various utilities which can be used to display various objects.