Posted by
Adrian Daerr-2 on
Aug 30, 2013; 10:58am
URL: http://imagej.273.s1.nabble.com/stitching-with-mask-transparency-non-rectangular-images-tp5004614.html
Hello,
I have images where only a circular central region shows my sample, the
corners of my camera's sensor are not illuminated. I would like to
stitch several of these images together, but using only the central part
(both for the registration - which is otherwise dominated by the black
circular border which is not part of the sample - and for blending
obviously). Is this possible in ImageJ ? Is there a stitching plugin
which accepts either a ROI selection, or a binary mask image, selecting
the parts of the images to take into account ?
I could of course inscribe a rectangle in the circular aperture and crop
to it, but I wouldn't have sufficient overlap any more in the pictures I
have taken so far (of course in the future I could just take about four
times as many pictures to get a denser coverage). And the cropping
solution would not be applicable in another case where I'd very much
like to be able to exclude some regions from the stitching: when there
is a bit of dirt or another defect at a fixed position with respect to
the sensor, covering a spot in one image which is nicely visible in
another shifted view. Currently the stitched image will blend the dirt
with the undamaged spot.
The hugin/enblend software suite has the possibility to define 'include'
and 'exclude' regions, but if I could avoid the detour and do the stuff
in Fiji that would be splendid.
Thanks in advance,
Adrian
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