Spektrafilm DIR Couplers

DIR coupler inhibition: saturation, contrast and local sharpness.

By jtydhr88·Created 5 days ago·Updated 5 days ago· 21

params

SPEKTRAFILM_PARAMS

◄override_stock_presetfalse►

◄activetrue►

◄amount1.00►

◄inhibition_samelayer1.00►

◄inhibition_interlayer1.00►

◄gamma_samelayer_rgb_r0.34►

◄gamma_samelayer_rgb_g0.32►

◄gamma_samelayer_rgb_b0.27►

◄gamma_interlayer_r_to_gb_g0.35►

◄gamma_interlayer_r_to_gb_b0.30►

◄gamma_interlayer_g_to_rb_r0.15►

◄gamma_interlayer_g_to_rb_b0.35►

◄gamma_interlayer_b_to_rg_r0.17►

◄gamma_interlayer_b_to_rg_g0.23►

◄diffusion_size_um20►

Categoryimage/spektrafilm/params

Inputs (16)

Name	Type	Default	Description
override_stock_preset	BOOLEAN	false	Use the values below for gamma_samelayer_rgb, gamma_interlayer_r_to_gb, gamma_interlayer_g_to_rb, gamma_interlayer_b_to_rg instead of the ones spektrafilm picks for the chosen film stock.
active	BOOLEAN	true	Enable DIR coupler inhibition.
amount	FLOAT	1.000–10000	Global multiplier on the DIR coupler inhibition matrix. 1.0 leaves the per-channel gammas as-is.
inhibition_samelayer	FLOAT	1.000–10000	Multiplier on the same-layer (diagonal) inhibition. Controls overall contrast / gamma reduction within each RGB layer.
inhibition_interlayer	FLOAT	1.000–10000	Multiplier on the cross-layer (off-diagonal) inhibition. Controls saturation enhancement from interlayer DIR effects.
gamma_samelayer_rgb_r	FLOAT	0.340–10000	Per-channel same-layer DIR gamma (R, G, B). Effective gamma reduction of each layer's density curve.
gamma_samelayer_rgb_g	FLOAT	0.320–10000	Per-channel same-layer DIR gamma (R, G, B). Effective gamma reduction of each layer's density curve.
gamma_samelayer_rgb_b	FLOAT	0.270–10000	Per-channel same-layer DIR gamma (R, G, B). Effective gamma reduction of each layer's density curve.
gamma_interlayer_r_to_gb_g	FLOAT	0.350–10000	DIR inhibition from the R layer onto the G and B layers respectively (g_R->G, g_R->B).
gamma_interlayer_r_to_gb_b	FLOAT	0.300–10000	DIR inhibition from the R layer onto the G and B layers respectively (g_R->G, g_R->B).
gamma_interlayer_g_to_rb_r	FLOAT	0.150–10000	DIR inhibition from the G layer onto the R and B layers respectively (g_G->R, g_G->B).
gamma_interlayer_g_to_rb_b	FLOAT	0.350–10000	DIR inhibition from the G layer onto the R and B layers respectively (g_G->R, g_G->B).
gamma_interlayer_b_to_rg_r	FLOAT	0.170–10000	DIR inhibition from the B layer onto the R and G layers respectively (g_B->R, g_B->G).
gamma_interlayer_b_to_rg_g	FLOAT	0.230–10000	DIR inhibition from the B layer onto the R and G layers respectively (g_B->R, g_B->G).
diffusion_size_um	FLOAT	200–10000	Sigma in um for the diffusion of the couplers, (5-20 um), controls sharpness and affects saturation.
paramsopt	SPEKTRAFILM_PARAMS		—

Outputs (1)

Name	Type	Description
SPEKTRAFILM_PARAMS	SPEKTRAFILM_PARAMS	—