Thank you so much! I think the title was something like "Don't trust your eyes"? Probably misremembering, cause I searched for hours...
edit: You're welcome!
Found it: Video technology in action. Reality is not what it seems. This will give you a new perspective on TV.
I could see the clip the instant it loaded. The focus is off and the edge is too hard.
Wish I had your eye because I did not notice even though I looked for fakery, because the original post title gave away that there were shenanigans to be expected.
Do you work with video compositing? What gave it away for you? The low rez, compression artifact ridden vid makes it hard to make out where the seams are.
I did photo and video back in the 90s and early 00s as a cottage job for bands. Until I got into my 2nd year of college with more intensive classes and got a serious girlfriend. Basically my eyes are trained from that. Even though I have about a -6/-6 l/r/ prescription in my glasses, but they fix that. Though my focus takes a bit because my eyes focus at different rates. It's easy on a flat screen though. I haven't done it in a while, but I did it so much that I can see the jaggies and the tells most of the time.
I would have done a rounded blur on that edge and softened the original video to make the focus from the greenscreen background not seem so jarring. Or you could use Lanzos to upscale the background. But that takes more time. Even a bilinear softening on the source would be enough and take minutes.
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