PanoTools mailing list archive
|Date/Time:||15-Mar-2012 20:00:20 +0000|
|Subject:||Re: How to find lens correction parameters with the calibrate_lens_gui|
On 15.03.2012 19:49, Bruno Postle wrote:
> Click on any lines that you don't think are worth using, they'll be
> marked as red and won't be used in the lens distortion calculation.
Well, if I had anything to click on. The algorithm doesn't find too many.
> You could also try a subject with a few more lines in it...
I tried my cutting board with a grid. It did not find any line in there.
> Alternatively take multiple photos from different directions, as
> many as you like, and load them in the Calibrate Lens tool all at
> the same time - This is equivalent to a single photo with lots of
Tried that as well. At max I had one line per image.
I am wondering what the algorithm likes...
Maybe I am mistaken, but doesn't the Canny algorithm have more
parameters than the tool exposes?
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