Multi-layer TIFF and the Gimp

[JD Smith]

Hi All:

I updated Krisztian's Perl-Fu Gimp script to be a normal script-fu
(nothing but Gimp required), save-layers-tiff, which allows you to
edit the alpha masks in Hugin's multi-layer TIFF output using the
Gimp, then export all layers to separate (non-cropped, unfortunately)
images, and let enblend operate on them. It creates file0000.tif
etc, from file.tif. Layer masks are applied. This differs from the
"continuous-save" script by expanding the layer to the full image
size (necessary since the Gimp loses the positional offset information).

When the Gimp is able to properly preserve cropped offset information
in saved layers, this can be modified to run more quickly by
exporting cropped TIFFs to enblend. Multi-layer TIFF is nice,
because it allows you to quickly assess the quality of the stitch,
look for objects which moved, etc., without assembling multiple
individual images.

See http://wiki.panotools.org/Multi-Layer_TIFF_editing_with_the_Gimp
for the details.

Script attached.

JD