Band tune

Parametric band equalizer for tuning frequency bands of image, the op provides abstracted input parameters that control two difference of gaussians driven band pass filters used as adjustments of the image signal.
Detail band
Features size for detail band, used for noise removal.
name: radius1 type: double default: 1.10 minimum: 0.00 maximum: 100.00 ui-minimum: 0.50 ui-maximum: 2.00 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3
Detail scale, negative values diminish signal in detail band, positive values increase signal.
Scaling factor for image features at radius, -1 cancels them out 1.0 edge enhances
name: scale1 type: double default: -1.60 minimum: -100.00 maximum: 100.00 ui-minimum: -3.00 ui-maximum: 3.00 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3
Detail bandwidth
lower values narrower band, higher values wider band - default value presumed to provide good band separation.
name: bw1 type: double default: 0.38 minimum: 0.01 maximum: 0.60 ui-minimum: 0.01 ui-maximum: 0.60 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3
Edge band
Features size for edge band, used to compensate for loos of edges in detail pass.
name: radius2 type: double default: 10.00 minimum: 0.00 maximum: 100.00 ui-minimum: 0.50 ui-maximum: 2.00 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3
Edge scale, negative values diminish signal in detail band, positive values increase signal.
Scaling factor for image features at radius, -1 cancels them out 1.0 edge enhances
name: scale2 type: double default: 0.00 minimum: -100.00 maximum: 100.00 ui-minimum: -3.00 ui-maximum: 3.00 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3
Edge bandwidth
lower values narrower band, higher values wider band - default value presumed to provide good band separation.
name: bw2 type: double default: 0.38 minimum: 0.01 maximum: 0.60 ui-minimum: 0.01 ui-maximum: 0.60 ui-gamma: 1.00 ui-step-small: 0.00 ui-step-big: 0.10 ui-digits: 3
Visualize Adjustment Mask
name: show-mask type: boolean default: False
name: gegl:band-tune
pads: input output
parent-class: GeglOperationMeta
categories: enhance sharpen denoise
operation-class: Ðò)
GEGL This page is part of the online GEGL Documentation, GEGL is a data flow based image processing library/framework, made to fuel GIMPs high-bit depth non-destructive editing future.