All effects and presets

Effect

Threshold

Hard cut tones into black and white at a chosen level.

Thresholding cuts an image into binary black and white at a chosen level, the logic behind early digital scanners, xeroxed flyers and stencil making.

Find the level where the subject still reads. Then decide whether grit or clean edges suit the piece.

Threshold example
Example

Properties

  • Threshold

    threshold level (0-255, like Photoshop)

    Range
    0 to 255
    Default
    118.924

  • Edge mode

    show 1px edge line at threshold

    Range
    0 to 1
    Default
    0

  • Offset amount

    number of offset threshold lines

    Range
    0 to 10
    Default
    0

  • Distance

    distance between offset threshold lines

    Range
    1 to 50
    Default
    0

  • Width

    dilation kernel size (0 disables)

    Range
    0 to 10
    Default
    0

  • Outline strength

    dilation blend strength

    Range
    0 to 1
    Default
    0.993

  • Outline type

    kernel: 0=box

    Range
    0 to 2
    Default
    0

  • Blend strength

    blend strength with original

    Range
    0 to 1
    Default
    0.949

  • Blend mode

    blend mode: 0=normal

    Range
    0 to 6
    Default
    5

  • Color

    threshold layer color

    Range
    Colour
    Default
    0.5, 0.5, 0.5

Command line

Requires Rethings Pro. Install the tool from Rethings → Install Command Line Tool… 

rethings apply --effect threshold --set threshold=118.9241 --set edgeMode=0 -i input.jpg -o output.png

Gallery

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