All effects and presets

Effect

Bloom

Lift bright regions into a soft glow with threshold, knee and intensity controls.

Bloom is the soft glow that appears when bright regions spill into neighbouring pixels. Film emulsion and camera optics do a version of this naturally when highlights overload. Real-time graphics borrowed the look to sell intensity: headlights, neon, sunlight through haze.

The digital recipe usually thresholds bright areas, blurs them, then adds the result back. Threshold, knee and intensity decide whether you get a gentle lift or a blown corona.

Bloom example
Example

Properties

  • Threshold

    Range
    0.1 to 2
    Default
    0.76

  • Intensity

    Range
    0 to 5
    Default
    3.4

  • Softness

    Range
    0 to 2
    Default
    0.371

  • Amount

    Range
    0 to 1
    Default
    0.717

Command line

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

rethings apply --effect bloom --set threshold=0.7601 --set intensity=3.4 -i input.jpg -o output.png

Gallery

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