On 10/11/20, Michael Koch <[email protected]> wrote: > Am 29.09.2020 um 22:54 schrieb Michael Koch: >> Hello all, >> >> I've programmed a C# workaround for stabilization of 360° videos. The >> procedure is as follows: >> >> 1. FFmpeg: From each frame of the equirectangular input video, extract >> two small images which are 90° apart in the input video. I call them A >> and B images. >> >> 2. C# code: Analyze the x and y image shift from subsequent A and B >> images. Calculate how the equirectangular frames must be rotated (yaw, >> pitch, roll) to compensate the image shifts. This part wasn't easy. >> Two rotation matrices and one matrix multiplication are required. >> Write the results to a *.cmd file. >> >> 3. FFmpeg: Read the *.cmd file and apply the rotations with the v360 >> filter. The output video is stabilized. >> >> For details and source code please have a look at chapter 2.78 in my >> book: >> http://www.astro-electronic.de/FFmpeg_Book.pdf >> >> If anyone wants to implement this in FFmpeg, please feel free to do it. > > I've written and tested an improved version for 360° stabilization, it's > in chapter 2.79.
Your book is full or factual errors, Notice to anyone: do not use this thing for anything serious. _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
