> On Mon, Dec 05, 2005 at 08:08:13PM -0800, patman at aracnet.com
wrote:
>>
>> I also tried Carol's "removing background" tutorial:
>>
>> http://carol.gimp.org/gimp2/basics/backgroundremoval/
>>
>> But it does not describe the "Add the decomposed image as a mask"
portion.
>>
>> Can some explain it or point to a tutorial on the subject?
>>
>Dialogs-->Layers
>
>in that dockable dialog, right click on the layer you would like to
mask
>and select "Add Layer Mask" (i am typing this from memory so no
>guarrentee on the exact wording).
>
>there will be a dialog with a choice of mask color/opacity. just
stick
>with the default since the next step is to copy another image to it.
>
>Decompose gives several layers. i would convert the decompose
image to
>rgb (some of the gimps had problems copying grayscale and i cannot
>remember which ones). Edit-->Copy on the layer you want as a mask
>Edit-->Paste to the mask area on the target image.
>
>black on masks is transparent, white is opague. gray is a little of
>both.
>
>is that what you asked?
>
>carol
>
When I try the above Edit->Paste to create a layer mask containing an
image,
I get a Floating Selection layer rather than anything in the layer
mask. Can
anyone help?
I am trying to blend two exposures using the 2nd technique ("Layer
Mask")
described at this URL:
http://www.luminous-landscape.com/tutorials/digital-blending.shtml
To use this given two exposures, E1 and E2, I need to find a way to
use E1
as a layer mask for E2. Is that possible using GIMP?
Josh
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