Please consider sending a patch that updates the documentation.
I recommend to make the following changes in chapter 38.73.1:
The filter accepts the following options:
cx
Relative x-coordinate of the center of the distortion. This value
has a range [0,1] and is expressed as fractions of
Michael Koch t-online.de> writes:
> The formula is correct, but it must be clarified that it
> describes the behaviour of the lens. It does not describe
> the behaviour of the lenscorrection filter.
Please consider sending a patch that updates the documentation.
Carl Eugen
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Am 23.02.2016 um 18:51 schrieb Michael Koch:
r_src is the radial coordinate in object space.
r_tgt is the radial coordinate in the image, which was taken with a
distorted lens.
Sorry, I confused these two. This is correct:
r_tgt is the radial coordinate in object space.
r_src is the radial co
Am 23.02.2016 um 10:00 schrieb Michael Koch:
I found a bug in the documentation of the lenscorrection filter:
https://www.ffmpeg.org/ffmpeg-all.html#lenscorrection
It's written there "0.5 means no correction" for the coefficients k1
and k2.
This can't be right, or the formula is wrong. It's o
I can't help you much, but you are free to look at the source code, and
see whether you can see the formula from it:
https://github.com/FFmpeg/FFmpeg/blob/master/libavfilter/vf_lenscorrection.c
I did already try that, but there are no comments in the source code,
and it's really difficult to u
On Tue, Feb 23, 2016 at 10:00:47 +0100, Michael Koch wrote:
> The remarks "0.5 means no correction" in the documentation are wrong.
> This can easily be tested:
I know nothing about lens correction formulas, I trust you on this. :-)
> But unfortunately this isn't the only error in the documentat
I found a bug in the documentation of the lenscorrection filter:
https://www.ffmpeg.org/ffmpeg-all.html#lenscorrection
It's written there "0.5 means no correction" for the coefficients k1
and k2.
This can't be right, or the formula is wrong. It's obvious that the
formula makes no correction i
Hi all,
I found a bug in the documentation of the lenscorrection filter:
https://www.ffmpeg.org/ffmpeg-all.html#lenscorrection
It's written there "0.5 means no correction" for the coefficients k1 and
k2.
This can't be right, or the formula is wrong. It's obvious that the
formula makes no corre
