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Scripting: creating a channel from a layer in another image and other channel-related manoeuvres

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Ofnuts
2013-12-13 23:21:57 UTC (over 10 years ago)

Scripting: creating a channel from a layer in another image and other channel-related manoeuvres

I need to create a channel in an image from a layer (or a channel) in another image of the same size.

I'm creating the other image so I can possibly copy the layer across the images and then use gimp-channel-new-from component() but is there a more direct method? I can't find a way to obtain a copy of a channel that doesn't remain attached to the same image (the channel equivalent to gimp-layer-new-from-drawable).

Then, gimp-layer-create-mask will accept a ADD-CHANNEL-MASK (6) type, but in this case how do I specify the channel?

Ofnuts
2013-12-14 13:49:17 UTC (over 10 years ago)

Scripting: creating a channel from a layer in another image and other channel-related manoeuvres

On 12/14/2013 12:21 AM, Ofnuts wrote:

Then, gimp-layer-create-mask will accept a ADD-CHANNEL-MASK (6) type, but in this case how do I specify the channel?

Some googling got me an answer to this (it uses the active channel) so I have that part covered. Now for the other question, any takers?

Joao S. O. Bueno
2013-12-15 10:57:44 UTC (over 10 years ago)

Scripting: creating a channel from a layer in another image and other channel-related manoeuvres

When in doubt, gimp-edit-copy and gimp-edit-paste can be quite handy to transfer pixels across layers/channels/images.

On 14 December 2013 11:49, Ofnuts wrote:

On 12/14/2013 12:21 AM, Ofnuts wrote:

Then, gimp-layer-create-mask will accept a ADD-CHANNEL-MASK (6) type, but in this case how do I specify the channel?

Some googling got me an answer to this (it uses the active channel) so I have that part covered. Now for the other question, any takers?

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