I deleted the alpha channel from a layer with a mask. The mask was still evident, and still functioned. I then saved the image, and exited.

Reloading the image, I am told gimp cannot load a mask for a layer without an alpha channel, and the mask is not visible.

Since it was a lot of work to generate this mask (removing the background from a photo), I would like to recover it. Any hints?

thanks, Dan

Sven Neumann wrote:

Hi,

On Tue, 2007-03-06 at 12:58 -0800, Dan Connelly wrote:

I deleted the alpha channel from a layer with a mask. The mask was still evident, and still functioned. I then saved the image, and exited.

May I ask which version of GIMP you were using?

% gimp --version
GNU Image Manipulation Program version 2.3.14

Sven Neumann wrote:

Hi,

On Tue, 2007-03-06 at 13:14 -0800, Dan Connelly wrote:

I deleted the alpha channel from a layer with a mask. The mask was still evident, and still functioned. I then saved the image, and exited.

May I ask which version of GIMP you were using?

% gimp --version
GNU Image Manipulation Program version 2.3.14

I am afraid that you hit a bug in the development version then. There is probably no way you can recover your mask but it would be very helpful if you could make sure that the issue is being filed as a bug report to our bug-tracker at bugs.gimp.org.

Does the file load with 2.2? A test file is here:

http://www-tcad.stanford.edu/~djconnel/test.xcf.gz

Dan

Sven Neumann wrote:

I am afraid that you hit a bug in the development version then. There is probably no way you can recover your mask

I submitted a bug report, as you suggest, but the following patch allows me to access the mask:

http://bugzilla.gnome.org/attachment.cgi?id=52173&action=view

Dan