CODEWITHSUNDEEP
pythongimpfupython-fu
Narann
Narann

Reputation: 878

How to execute a "Channel to Selection" in Gimp python-fu?

I want to convert custom channels into selection using python-fu. This can be done manually in Gimp using "Channel to Selection".

I can retrieve the image and the channel as Python objects but I can’t figure out how to convert this channel to selection.

images = gimp.image_list()

image = images[0]

ch = image.channels[0]

# ?

What I’m missing here is how do a selection from a channel.

Upvotes: 3

Views: 691

Answers (1)

Narann
Narann

Reputation: 878

After some digging, I finally found the answer:

images = gimp.image_list()

image = images[0]

ch = image.channels[0]

pdb.gimp_image_select_item(image, 2, ch)

More info about the second argument in the gimp-image-select-item documentation I quote here:

The desired operation with current selection { CHANNEL-OP-ADD (0), CHANNEL-OP-SUBTRACT (1), CHANNEL-OP-REPLACE (2), CHANNEL-OP-INTERSECT (3) }

I have the impression the official Python module miss a gimp.Image.select_item(item, operation method. In my case it would give:

image.select_item(ch, 'replace')

Upvotes: 4

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