Oink
Nodes

Blur

Blur: blurs the image with Nuke's box, triangle, quadratic or gaussian filter; size is the filter's width in pixels (gaussian: its width at half height), separately for width and height.

raw .md

Blur: blurs the image with Nuke's box, triangle, quadratic or gaussian filter; size is the filter's width in pixels (gaussian: its width at half height), separately for width and height. Large blurs scale the image down by the quality number first, as Nuke's. Crop to format keeps a bounding box that was inside the format inside it. Channels picks which channels blur.

NodeBlur
Type idOC_N_blur
MenuFilter › Blur
Nuke classBlur
Codeopencomp_core/nodes/filter/blur.py

Blur properties

Inputs and outputs

PortNameType
input 0Imageimage
input 1maskimage
output 0Imageimage

Knobs

Panel tab Blur, in panel order.

KnobLabelTypeDefaultRange / valuesNuke knobDescription
channelschannelsmenuallrgba, rgb, alpha, all, noneLayer the op applies to: rgb, rgba, alpha, all, none, <layer> or <layer>.<ch>
sizesizewh ×20, 00 to 100size
filterfiltermenuGAUSSIANBOX (box), TRIANGLE (triangle), QUADRATIC (quadratic), GAUSSIAN (gaussian)filter
qualityqualityfloat151 to 100 (integer)quality
crop_to_formatcrop to formatbooltruecrop
mask_channelmaskmenunonenone, rgba.alpha, rgba.red, rgba.green, rgba.blueMask channel, e.g. rgba.alpha (none = no mask)
injectinjectboolfalseCopy the mask into mask.a for nodes downstream
invert_maskinvertboolfalseinvert_mask
fringefringeboolfalseOnly apply the effect at the edges of the mask
mixmixfloat10 to 1mix

Other knobs (Python, .nk and the assistant; not on the panel)

KnobLabelTypeDefaultRange / valuesNuke knobDescription
gl_colorViewer Controls Colorfloat ×30, 0, 00 to 1
postage_stamp_frameStatic Frameint1-2147483648 to 2147483647
lifetimeStartLifetime Startint0-2147483648 to 2147483647
lifetimeEndLifetime Endint100-2147483648 to 2147483647
useLifetimeUse Lifetimebooleanfalse
cachedCachedbooleanfalse
bookmarkBookmarkbooleanfalse
dope_sheetDope Sheetbooleanfalse
clone_groupClone Groupstring
link_sourceLink Sourcestring
link_overridesLink Overridesstring
split_viewsSplit Viewsstring
unpremult(Un)premult byenumnonenone, rgba.alpha
invert_unpremultinvertbooleanfalse(Un)premultiply by 1 - alpha

Nuke equivalent

Imports from and exports to Nuke's Blur. The standard Nuke mask knobs (channels, mask, invert, (un)premult, mix) are mapped too.

Knobs with a different name here:

Nuke knobKnob here
cropcrop_to_format

Nuke knobs not in this list import as a knob of the same name, or are kept unchanged for export. See .nk import.

Examples

Open these from Help › Examples…, or from the ? menu in this node's Properties panel.

  • Blur (examples/filter/blur_basics.oink): A gaussian Blur of 12 pixels on the Desk photo. The size knob has separate width and height.

Cryptomatte

Cryptomatte: mattes from Cryptomatte ID layers.

Sharpen

Sharpen: unsharp mask — the image plus amount times its difference from a blur of it (size, filter, quality as Blur).

On this page

Inputs and outputsKnobsOther knobs (Python, .nk and the assistant; not on the panel)Nuke equivalentExamples