ComfyUI Node
Spektrafilm Input Gamut Compress
Compress input colors toward the visible locus before spectral upsampling.
Spektrafilm Input Gamut Compress
- params
- SPEKTRAFILM_PARAMS
◄activetrue►
◄algorithmxy►
◄knee_threshold0.00►
◄knee_limit1.00►
◄knee_power6.00►
Categoryimage/spektrafilm/params
Inputs (6)
| Name | Type | Default | Description |
|---|---|---|---|
| active | BOOLEAN | true | Compress input chromaticities toward the visible spectral locus before spectral upsampling. Off passes input through unchanged. |
| algorithm | COMBO | xy | xy: radial compression in CIE 1931 chromaticity (ACES RGC family, hue-preserving). oklch: perceptual chroma reduction at constant Oklch (L, h). |
| knee_threshold | FLOAT | 0.000–10000 | Reinhard knee (threshold, limit, power). Defaults (0.0, 1.0, 6.0) apply a soft full-range roll-off that asymptotes at the spectral locus boundary. |
| knee_limit | FLOAT | 1.000–10000 | Reinhard knee (threshold, limit, power). Defaults (0.0, 1.0, 6.0) apply a soft full-range roll-off that asymptotes at the spectral locus boundary. |
| knee_power | FLOAT | 6.000–10000 | Reinhard knee (threshold, limit, power). Defaults (0.0, 1.0, 6.0) apply a soft full-range roll-off that asymptotes at the spectral locus boundary. |
| paramsopt | SPEKTRAFILM_PARAMS | — |
Outputs (1)
| Name | Type | Description |
|---|---|---|
| SPEKTRAFILM_PARAMS | SPEKTRAFILM_PARAMS | — |