Strange effects when resizing a video

Help/How To
1

Hi, I’ve searched this forum and not found a solution to this one yet. Over the UK lockdown I’ve got to grips with Shotcut for editing music videos for our church and most recently have been creating a choir video for Christmas. This is a grid of 18 windows, all filmed on phones in HD, and all appear good quality in their own right. However, when I resize them in Shotcut down to approx 320x200 then I’m starting to get weird effects on some of them. See the guy in the bottom centre on this image:

Screenshot 2020-11-27 at 21.47.11
Screenshot 2020-11-27 at 21.47.111702×942 301 KB

If I make his video a bit bigger it seems to be fine (e.g. 640x400) and it’s definitely appearing like this in the editor itself so isn’t to do with Export settings, which is what I focussed on first. I’ve played about with filters like contrast, brightness, noise reduction but nothing seems to be resolving it.

Thanks in advance for any ideas!
Iain

2

What is your version? Version 20.10 introduced a visual quality improvement for the Size, Position & Rotate filter.

3

Hi, I’m on 20.04.12 (MacOS). Just downloading the latest version to give that a go - thanks for the heads up that this might be improved!

Iain

4

It looks much better in the editor now. Just exporting it but I’m assuming it’s fixed so I’m happy to close this thread - thanks for the quick resolution!

Also, just to say I’ve been really impressed with how quick Shotcut has been to pick up and how powerful it is - there seems to be a youtube video to cover most of my how to questions! Thanks :smiley: