-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Short question to this: Is it really useful to do the calibration fitting with a crop camera? Because some image area is missing for full frame cameras, the data may be not that good for them?
Freundliche Grüße Daniel Schury Am 17.06.2014 11:32, schrieb Robert William Hutton: > On 13/06/14 23:06, Leonard Evens wrote: >> I had previously calibrated a lens using the program hugin, following >> the video by Torsten Bronger at http://vimeo.com/51999287 >> >> I need to do the same for a new lens on a new camera, so to remind >> myself how to do it, I tried doing the old lens again using hugin. >> Unfortunately, the hugin interface has changed radically, and it is not >> clear how to do it. >> >> Does anyone know how to do this? > > There are two tricks you need to know about in the new versions of Hugin: how > to make the Optimiser tab appear, and how > to select the "a", "b" and "c" parameters for optimisation. Here's how: > > * Open Hugin Panorama Creator. I'm using the one on Ubuntu 14.04 which is > version 2013.0.0. > * On the Photos tab, right click in the file list (currently just the blank > white area) and do "Add individual > images...", then select your image. > * Type in your focal length multiplier (1.0 for full frame, 1.6 for Canon > crop cameras, 1.5 for Nikon crop cameras, > etc.) and click OK. > * Under Optimise at the bottom of the screen, change the Geometric option to > "Custom Parameters". Note that the > Optimiser tab will then appear at the top of the screen. > * On the Control Points tab, add your control points as described in > Torsten's video. > * On the Optimiser tab, under Lens Parameters, click the triangle next to the > "Lens 0" item. This will show your image > file name. Next to the image file name, ctrl-click the three zeros under > "a", "b" and "c". They will become bold and > underlined, indicating that they are selected for optimisation. > * Click the Optimise now! button in the top right. > * Once the optimisation is complete, the "a", "b" and "c" parameters will be > filled in with the real values, but they're > low-precision and you can't copy-paste them from that screen, so right click > on the the image file name and do "Edit > image variables...". > * From the Image variables screen, copy and paste the distortion (a), barrel > (b) and distortion (c) values. > > Regards, > > Rob > > ------------------------------------------------------------------------------ > HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions > Find What Matters Most in Your Big Data with HPCC Systems > Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. > Leverages Graph Analysis for Fast Processing & Easy Data Exploration > http://p.sf.net/sfu/hpccsystems > _______________________________________________ > Darktable-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/darktable-users > > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iEYEARECAAYFAlOgDDkACgkQk7XSfqVgB0rBCwCfXfR472fcBmjLUTLuyJ0TnkcG Y60AoKktqB/6zpNTmUG0rxqbOi+gVRap =XPSk -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing & Easy Data Exploration http://p.sf.net/sfu/hpccsystems _______________________________________________ Darktable-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/darktable-users
