All effects and presets

Effect

Monochrome

Convert to mono with weighted downmix and optional tint.

Mono conversion is a design choice about which colours become which greys. A weighted downmix can favour skin or skies; a tint can nod to selenium or split-tone prints.

The goal is a deliberate black-and-white picture, not a forgotten saturation slider.

Monochrome example
Example

Properties

  • (red weight, green weight, blue weight)

    RGB weights

    Range
    -1, -1, -1 to 2, 2, 2
    Default
    0.709, 1.002, 0.271

  • Normalize Weights

    normalize weights

    Range
    0 to 1
    Default
    1

  • Tint Color

    Range
    Colour
    Default
    1, 1, 1

Command line

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

rethings apply --effect monochrome --set downmix=0.7086,1.0015,0.2713 --set normalize_weights=1 -i input.jpg -o output.png

Gallery

  • Monochrome example 1
  • Monochrome example 2
  • Monochrome example 3
  • Monochrome example 4
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  • Monochrome example 45