Filter: openfx.net.sf.openfx.Unpremult

Plugin Information

title: UnpremultOFX
media types: Video experimental
description: Divide the selected channels by alpha (or another channel)

If no channel is selected, or the premultChannel is set to None, the image data is left untouched, but its premultiplication state is set to UnPreMultiplied. See also: https://web.archive.org/web/20210413043727/http://opticalenquiry.com/nuke/index.php?title=Premultiplication

version: 2
creator: mr.fantastic mrfantastic@firemail.cc
license: GPLv2
URL: https://openeffects.org/

Parameters

NatronOfxParamProcessR

title: R
description: Divide the red channel.
type: boolean
readonly: no
required: no
animation: yes
default: 1

NatronOfxParamProcessG

title: G
description: Divide the green channel.
type: boolean
readonly: no
required: no
animation: yes
default: 1

NatronOfxParamProcessB

title: B
description: Divide the blue channel.
type: boolean
readonly: no
required: no
animation: yes
default: 1

NatronOfxParamProcessA

title: A
description: Divide the alpha channel.
type: boolean
readonly: no
required: no
animation: yes
default: 0

mlt_origin

title: Top-Left Origin
description: Set to 1 to use MLT top-left image origin instead of the OFX bottom-left origin. Use for plugins that crash or produce incorrect output with negative row bytes.
type: boolean
readonly: no
required: no
minimum: 0
maximum: 1
default: 0
widget: checkbox

Search

Subscribe

Subscribe to News via RSS.

Recent Posts

About

MLT enables you to author, manage, and run multitrack audio/video compositions. Copyright © 2008-2026 by Meltytech, LLC.

Social Links