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 Post subject: Layer Mask
PostPosted: Sun Jul 27, 2014 6:26 am  (#1) 
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GimpChat Member

Joined: Feb 08, 2014
Posts: 26
Hi!

I am having tough time finding a way to make a layer have a custom alpha mask (ie black and white image as a mask).

I am having 3 layers, the original image, a created b/w mask layer and a final created layer I want to be masked. In the end, the third layer should be blended to the first/original layer using the mask as an alpha channel.

Here is the code:

gmic IMG_4245.JPG --rgb2hsl -split[-1] c -rm[-2] -rm[-2] -*[-1] 255 -apply_curve[-1] 1,0,0,63,0,127,255,192,0,255,0 --unsharp[0] 300,0.25,0 -cut[-1] 0,255 -to_a[-1]


Any ideas?

Thank you!


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 Post subject: Re: Layer Mask
PostPosted: Sun Jul 27, 2014 4:39 pm  (#2) 
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GimpChat Member

Joined: Oct 21, 2012
Posts: 13
something like that maybe

gmic IMG_4245.JPG --rgb2hsl -split[-1] c -rm[-2] -rm[-2] -*[-1] 255 -apply_curve[-1] 1,0,0,63,0,127,255,192,0,255,0 --unsharp[0] 300,0.25,0 -cut[-1] 0,255 -cut[-2] 0,255 -reverse[-1,-2] -append[-1,-2] c -blend


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 Post subject: Re: Layer Mask
PostPosted: Mon Jul 28, 2014 3:42 am  (#3) 
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GimpChat Member

Joined: Feb 08, 2014
Posts: 26
Thanks a lot! It's working!


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