3F

If you're using Premiere Pro, just put the images in a dedicated folder, make sure they're numbered in sequence and consecutively, then in Premiere Pro right-click the Project window and choose "Import", select the first image, and check the checkbox "Image Sequence". It will automatically pull all the images in as a sequence called thefirstimageName.jpg but with an image "stack" icon. That's it, sort of. Drag it into a Sequence, then render it out (Export -> Media) as 1080p and then import the export as a new video clip. I do recommend exporting it and re-importing it as a clip because Premiere Pro and Media Encoder can be known to get crashy with hi-res footage if you tinker with cuts and speed changes, so exporting out the hi-res footage to 1080p, while compromising quality, restores stability.