Public bug reported:
Hi.
Currently when I open some images in hugin, it only detects the focal length
(by using metadata information).
It would be nice if the same could be done, too, for the crop factor and the
HVOF.
I'm not sure whether these are standardised Exif-Tags or not, but some
camera manufacturers (at least) encode this in their "binary" fields.
If I take e.g. images made by my Olympus E-5 or the E-510 and do a:
exiv2 -pt image.orf
I don't find any tag which I'd say it's the crop factor or the HFOV.
However:
exiftool seems to be very well able to get these information, e.g.:
$ exiftool P3096244.ORF | grep "^Scale Factor"
Scale Factor To 35 mm Equivalent: 2.0
$ exiftool P3096244.ORF | grep "^Field"
Field Of View : 65.1 deg (3.51 m)
Actually it seems to be able to get even more data out of Olympus'
binary fields, you should have a look at them some might be perhaps of
use for hugin?!
It's (especially for "end-users") a pain to decide their lense type (rectified,
etc.),.. this would AFAIU make this not longer needed.
And the values are probably more correct (at least they differ from what hugin
caculates if I enter just the crop factor and focal length).
I'd suppose that the other major manufacturers have similar fields
encoded.
Cheers,
Chris.
** Affects: hugin
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/732359
Title:
use image metadata to determine crop-factor and hfov
Status in Hugin - Panorama Tools GUI:
New
Bug description:
Hi.
Currently when I open some images in hugin, it only detects the focal length
(by using metadata information).
It would be nice if the same could be done, too, for the crop factor and the
HVOF.
I'm not sure whether these are standardised Exif-Tags or not, but some
camera manufacturers (at least) encode this in their "binary" fields.
If I take e.g. images made by my Olympus E-5 or the E-510 and do a:
exiv2 -pt image.orf
I don't find any tag which I'd say it's the crop factor or the HFOV.
However:
exiftool seems to be very well able to get these information, e.g.:
$ exiftool P3096244.ORF | grep "^Scale Factor"
Scale Factor To 35 mm Equivalent: 2.0
$ exiftool P3096244.ORF | grep "^Field"
Field Of View : 65.1 deg (3.51 m)
Actually it seems to be able to get even more data out of Olympus'
binary fields, you should have a look at them some might be perhaps of
use for hugin?!
It's (especially for "end-users") a pain to decide their lense type
(rectified, etc.),.. this would AFAIU make this not longer needed.
And the values are probably more correct (at least they differ from what
hugin caculates if I enter just the crop factor and focal length).
I'd suppose that the other major manufacturers have similar fields
encoded.
Cheers,
Chris.
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