I am building featuring digital avatars that render as videos. The renderings feature an animated avatar with audio infront of a green screen. I pulled the video into Express, removed the background and made the canvas background transparent as well. Thought this would be all I needed to do and that downloading the mp4 from Express would produce a video with just the avatar and no background color. Alas, I was wrong, and there's a grayish background on the video. Anyone know how to download the video with no background so that only the avatar is showing?
The video format mp4 doesn't support alpha channel transparency, so it has to have a background of some desscription. Removing backgrounds from videos is great for overlaying videos one on top of the other within Adobe Express, but there always needs to be a background for mp4 videos.
Ultimately you would need to put a background in that you could remove elsewhere e.g. a green screen in effect to remove in Premiere Pro and save in a format that supports transparency.
Ahh, thank you Jane. I typically use Camtasia for video editing and have been avoiding Premiere Pro because I'm a coward, but I guess it's time to dive in. So, to clarify, exporting a video with no background is an affordance with Premiere Pro?
Hello Pete, to be honest although I use Premiere Pro I'm not an expert on videos with transparent backgrounds. All I know is that mp4 doesn't support it. A quick Google search tells me that "Many video formats and codecs support transparency channels: WebM (VP8 and VP9), MOV/QuickTime (HEVC, Apple ProRes 444), FLV, and AVI. The main difference lies in the coding efficiency and the maximum alpha bit-depth." It doesn't really matter what editor you use to get to that format - and of course what your end use is for the video might be important too. You could also try the Premiere Pro Community Forum here for further help or if you use Discord there's an Adobe Video channel https://discord.gg/adobepremiere
So Adobe offers this Premium Service (the ability to upload a video and remove the background) but then offers no way to download the resulting video with said transparent backgound.
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