On Fri 22-May-2009 at 12:50 -0700, Michael Witten wrote:
>
># * I wanted 11.tif to provide the white area with which {05,09,10}.tif
># could be blended nicely. However, enblend gives up when the pixels
># are white, saying that 11.tif is grayscale while the other input
># images are color.
Unfortunately there is no way to stop ImageMagick optimising
bit-depth, so it really doesn't play nicely with enblend.
># * As an experiment, I converted the white area into a yellowy area
># in the hope that it would bypass the first problem. Fortunately, it
># works, but emblend itself misbehaves: The golden area is shifted up
># in the image and blended with the wrong parts.
The problem is that hugin produces 'cropped' TIFF files, i.e. hugin
doesn't render empty areas, it adds a pixel offset to the files
instead.
i.e. to any tool that understands about these offsets the image is
1801 pixels high, but to ImageMagick and the Gimp they are 1519.
If you are going to be editing layers in the Gimp, you need to
uncheck 'cropped TIFF' in hugin before rendering, or use a tool like
PTuncrop to turn them into 'normal' TIFF files.
(or fix the Gimp, it handles offsets fine with multilayer TIFF)
># The `--fine-mask' handles the thinly overlapping seams that I have created;
># without it, I've experienced some horrendous artifacts such as completely
># blackened regions.
enblend will do a much better job with wider seams, I think it is a
mistake to make them so narrow. However you can still blend the
images together nicely by increasing the number of blending levels
with the -l option:
enblend -l 29 -o junk.tif *_uncropped.tif
The result:
http://www.flickr.com/photos/36383...@n00/3554309269/
--
Bruno
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