Re: [Gimp-user] Layer Masks - Channel Masks

There's a Layer Mask tutorial on the website to walk you through the basics
of using them if it helps:

On Wed, Aug 15, 2018 at 10:47 AM rich404 <forums gimpusers com> wrote:

I am a NewBee to Gimp 2.10. I was attempting to cut the background
from an image.  My first attempt was using a Channel Mask following a
tutorial online. The results were not what I expected, instead of
background with nothing I got a background with a very faded image.
Next, I attempted to do the same with a Layer Mask.  The results were
the same.
Would someone kindly help me out? Thank you

Was that a Photoshop tutorial by any chance?

Your description of a faded image, could be just a poor
selection-to-channel ,
maybe you just made the channel visible, that does not do anything except
parts of the image.

There are different ways to use the channel, put it to a selection and cut
selection or use a layer mask. A layer mask is non-destructive and a good
way to

Starting off with a channel. It does need to be mainly black and white, if
have lots of grayscale then this comes out as semi-transparent. Need
like this screenshot:

Just turn the visibility of that channel off, go to the layers dialogue
and make
the layer active. Now you can use Layer -> Mask -> Add Layer Mask and
create a
mask from the channel:

Which gives this:

Save your work as a Gimp .xcf which saves all layers, channels, masks.
Export to
a png which will flatten to one layer but keep the transparency.


rich404 (via
gimp-user-list mailing list
List address:    gimp-user-list gnome org
List membership:
List archives:

GPG: 66D1 7CA6 8088 4874 946D  18BD 67C7 6219 89E9 57AC

[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]