Mike Johnson claimed he will release the rest of the Jan. 6 footage in the interest of transparency, as soon as staffers blur the faces of the participants.
Yes. You read that right. Johnson is saying that he is intentionally hiding insurrectionists from prosecution in the release of tapes that Republicans claim will vindicate them on January 6th.
That would depend in the degree of blur. If it is the average blur you'd have in japanese pornography, then no, that tech does not exist. Super resolution is good, but not that good.
In practice the results are often quite disappointing because of strong noise enhancement and ringing. To reduce these effects, the Wiener filter is preferred http://en.wikipedia.org/wiki/Wiener_deconvolution.
It depends on how the blur is done. A lot of the simple blurring teqniques have publicly available tools for reversing. If you need to hide information by blurring, make sure the blur you are using was designed with that in mind (as opposed to being an artsy feature)