Wikipedia:Reference desk/Archives/Computing/2021 January 27

= January 27 =

Technical name for Video editing effect
In some parts of this Video, there are wavy screen cornering effect is done, is there any technical term for it? Rizosome (talk) 12:00, 27 January 2021 (UTC)
 * Could you link - or at least mention - a time frame? A watched a few seconds and clicked around a bit but didn't see anything. Watching en entire 13-minute copyright violated wrestling video is a bit of a large ask. Matt Deres (talk) 18:57, 27 January 2021 (UTC)

Around @1:16, @1:42, @2:12 of the video, right side of and @2:30 of the left side got deviated. Is there any technical term for this deviation? Rizosome (talk) 13:38, 28 January 2021 (UTC)

Rizosome (talk) 14:41, 28 January 2021 (UTC)


 * I think it is an unintended artifact of digital image stabilization, performed in post-production to reduce the shakiness of the image, apparently taken with a handheld camera. To stabilize the image, the individual frames need to be shifted, which means some border pixels have to be sacrificed. In case of an extreme excursion, there is a choice: allow a bad image shake to remain, sacrifice an extreme number of border pixels in the adjacent frames, or shift without such sacrifice, but then fill in the missing pixels. In this case the software used the third option, but instead of using some combination of interpolating and extrapolating, it used black pixels as fillers. I expect that the digital image stabilization community has names for the most common approaches to this issue, but I don't know what they are. --Lambiam 14:55, 28 January 2021 (UTC)