clojure2d.extra.glitch — clojure2d 1.4.5

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.

blend-machine clj

(blend-machine p1 p2)

(blend-machine {:keys [switch? in1-cs in2-cs out-cs in1-to? in2-to? out-to?
                       blend-ch1 blend-ch2 blend-ch3]}
               p1
               p2)

Blend two Pixels based on configuration.

The idea is to compose channels separately in different color spaces.

Full flow does following steps:

• convert inputs to (or from) selected color spaces
• compose each channel separately using different method
• convert output to (or from) selected color space

Parametrization:

• :switch? - reverse input order
• :in1-cs - color space for first image
• :in2-cs - color space for second image
• :out-cs - color space for output
• :in1-to?, :in2-to?, :cs-to? - which conversion to select: to color space or from color space
• :blend-ch1, :blend-ch2, :blend-ch3 - blend methods for each channel

blend-machine-random-config clj

(blend-machine-random-config)

Random configuration for blend machine.

fold clj

(fold)

(fold {:keys [fields r]})

Folding filter based on vector fields.

Parameters:

• :fields - vector fields configuration [[combine]]
• :r - range value 1.0-3.0

fold-random-config clj

Generate random configuration for vector fields slitscan.

• r - field range (default 2.0)
• d - fields configuration depth (default up to 3)

imgslicer clj

(imgslicer pixels
           {:keys [distance threshold min-size mode]
            :or {distance v/dist threshold 200 min-size 500 mode :color}
            :as options})

mirror clj

(mirror)

(mirror t)

Mirror image for given (or random) mirroring functions.

mirror-random-config clj

(mirror-random-config)

Generate random mirroring functions.

mirror-types clj

Map of names and mirroring functions

pix2line clj

(pix2line)

(pix2line {:keys [tolerance whole] :as config})

Pix2line effect. Convert pixels to lines.

Parametrization:

• :nx, :ny - grid size
• :scale - grid scaling factor
• :tolerance - factor which regulates when start new line
• :nseed - noise seed
• :whole - skip lines or not
• :shiftx, :shifty - noise shift

pix2line-random-config clj

(pix2line-random-config)

Make random config for pix2line.

shift-channels clj

(shift-channels)

(shift-channels {:keys [x-shift y-shift] :or {x-shift 0.05 y-shift -0.05}})

Shift channels by given amount.

Parameters:

• :x-shift - shift amount along x axis
• :y-shift - shift amount along y axis

shift-channels-random-config clj

(shift-channels-random-config)

(shift-channels-random-config spread)

Random shift values along x and y axes.

Optionally provide spread parameter to define maximum shift value.

slitscan clj

(slitscan)

(slitscan {:keys [x y] :or {x [(make-random-wave)] y [(make-random-wave)]}})

Create slitscan filter funtion.

Config is a map each axis has it's own list of maps defining waves. Each map contains:

• :wave - oscillator name (see [[oscillators]].
• :freq - wave frequency
• :amp - wave amplitude
• :phase - wave phase (0-1).

slitscan-random-config clj

(slitscan-random-config)

(slitscan-random-config nx ny)

Create list of random waves for each axis separately.

Optionally you can pass number of waves to create for each axis.

slitscan2 clj

(slitscan2)

(slitscan2 {:keys [fields r] :or {r 2.0 fields (var/random-configuration 0)}})

Slitscan filter based on vector fields.

Parameters:

• :fields - vector fields configuration [[combine]]
• :r - range value 1.0-3.0

slitscan2-random-config clj

(slitscan2-random-config)

(slitscan2-random-config r)

(slitscan2-random-config r d)

Generate random configuration for vector fields slitscan.

• r - field range (default 2.0)
• d - fields configuration depth (default up to 3)