Re: [PanoToolsNG] Help making masks in TIF files ...
> Then ... What should I do in order to create and save the maskIf your tiff already has an alpha channel, then it will show up as a
> within the 16
> bit TIF picture ?
4th channel in the "Channels" palette (by default it's a tab by
Layers). If you pick the alpha mask, then you'll be drawing in it.
Either ctrl+Bksp or alt+Bksp will then fill your selection with white/
black as desired. You can have the alpha channel and RGB visible at
the same time, and the mask will show up as a red semitransparent
overlay. This gives you more direct control than just saving the
selection, however requires you to have an alpha channel in place
(add one if you don't already have it).
- --- In PanoToolsNG@yahoogroups.com, "Roberto Gomez Torres"
> I use the Lasso Tool or the Polygonal Lasso Tool to choose and markAs usual, there are several ways to do this, and it is sometimes easier
> the area I want to exclude from the panorama.
to create the mask by painting with a brush rather than using selection
tools. To do this, go to the Channels palette:
Second icon from the right at the bottom is the create new channel icon.
Click on this icon while holding down the shift key. This will create
your new alpha channel filled with white and will be displayed in your
Now click on the eye of the rgb channel in the channels palette. The
main image will appear in the image window, but the alpha channel
remains selected as the active channel.
Select black as the foreground colour and paint the areas you want to
mask with a hard edged brush. They will appear as a red overlay.
Save the tiff file and you're done.