On Mon 26-Nov-2012 at 09:12 +0000, Michael Witten wrote:
When "PNG" is set as the output format in the Stitcher tab, the output
inexplicably includes the "Image Offset" (the "oFFs") chunk:
http://www.libpng.org/pub/png/book/chapter11.html#png.ch11.div.10
It appears to be completely nonsensical. At least GIMP asks whether
the values should be applied, but I fear that other software won't
even afford that courtesy.
Interestingly, the PNG produced by running Hugin's TIFF output through
ImageMagick's `convert' tool also suffers from this problem. Is the
underlying conversion buggy?
The TIFF output has offsets, this is useful since much of the output
from nona is huge amounts of empty space and it makes little sense
rendering it all. This 'cropped TIFF' format with offsets can be
turned off if you don't want it.
I haven't looked at the PNG output for ages, but I suspect that any
offsets you see have the same purpose.
--
Bruno
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