Yenya's World

Fri, 17 Oct 2008

Stitching Photos

In Oregon, I took several photos from one point in order to try to stitch them to one panorama later. The shots were taken from hand, so it was not optimal. In further experiments I would have to use a wider angle lens and higher overlap of the frames (I used about 20 % on each side). Manual exposition and focus is a necessity in order to get the same level of light across the whole view.

Columbia river

The image above is composed from eight photos taken at the Crown Point above the Columbia River. Best viewed using two wide monitors in Xinerama/XRandr dual mode :-)

The image has been created using Hugin, which is a really nice and intuitive software. I have been able to create the panorama without even reading the manual. Altough, reading their tutorials definitely helps (a funny bug there - the tutorial section labeled "Czech/Čeština" contains only one tutorial, which is actually in Slovak :-).

Stitching photos is another ugly case of software patents abuse: the algorithm for automatically detecting suitable alignment control points is patented in the U.S., which means that even though the patent is definitely not valid in Europe, precompiled software distributed globally (like Hugin) cannot use it.

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