[ptx] hugin 0.5 released
JD Smith
jdsmith at as.arizona.edu
Tue Dec 13 17:22:39 GMT 2005
On Dec 13, 2005, at 8:18 AM, Rich wrote:
> resending to list...
> --
> pablo.dangelo at informatik.uni-ulm.de wrote:
>> Hi,
> ..
>>> is there some information in tiff header or does enblend in some
>>> other
>>> way determine the correct positions ?
>> The offset is stored in the tiff header. However, it is not
>> possible to store
>> the size of the complete panorama inside a single tiff file. To
>> create a output
>> of the expected size, enblend needs to be told the size of the
>> whole panorama
>> using -f.
>> If it is not, enblend will only render the part covered by the
>> panorama.
>
> which seems to be a nice sideeffect while hugin can not crop full-
> sized
> output images ;)
>
> is there a possibility for 'bad things' to happen if no final size is
> provided or is the only difference the lack of usual black area
> above/below panorama ?
It probably only matters if you are trying to produce an
equirectangular projection which has aspect ratio exactly 2 to 1,
which is required for viewer like PTViewer. For print or other uses
of partial panoramas, it won't matter.
I wonder whether these cropped, offset TIFF files are editable by,
e.g., the Gimp, in a way which preserves the offsets? Can you edit
the alpha channel, re-save, and then hand off to Enblend? Does
enblend also now take the multi-layer TIFF format? This I gather is
essentially the same as the offset, cropped format, but all put
together into a single file.
JD
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