On Thu, Dec 24, 2020 at 12:25 PM Michael Koch <astroelectro...@t-online.de> wrote:
> Am 24.12.2020 um 10:42 schrieb thongtm2: > > I have a fisheye camera (360 degrees in horizontal & 180 degrees in > > vertical). Is it possible to use v360 filter to dewarp circular fisheye > > images to single perspective images (flatten fisheye images)? I've tried > > many options but the results were not as I expected. Below command is > one of > > them: > > ffplay fisheye_video.mp4 -vf > > v360=fisheye:ih_fov=360:iv_fov=180:flat:yaw=120:pitch=0:roll=0 > > There are several problems in your command line. > 1. As Paul has already pointed out, ih_fov and iv_fov must have the same > value for fisheye input. In your case both must be 180. > 2. It also makes sense to specify the output field of view h_fov and > v_fov and the output size w and h, because the default values aren't > known (unless you look in the source code). > 3. The command line is better readable if you don't omit the names of > the options. I mean "output=flat". The names can be omitted if the > options are specified exactly in the correct order. Your command line > may work as it is, but it would be better if "flat" or "output=flat" is > the second option. > > This should work: > > v360=input=fisheye:output=flat:ih_fov=180:iv_fov=180:h_fov=90:v_fov=60:w=900:h=600:pitch=-60 > > I may be mistaken, but OP input looks to be 360 fisheye, I havent actually tried. > Michael > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".