Image: GreenscreenCompare

Description: Video screenshots of Obama-impersonator Iman Crosson (YouTube channel Alphacat). Top panel: in front of a "green screen" (Chroma key) in a "behind-the-scenes" video published 2011-05-08. Bottom panel: in the final version of a Barack Obama speech Spoof video that was published 2011-05-04. Two screenshots were composited into a single png file by uploader RCraig09. Mr. Crosson granted CC-by-SA-3.0 permission for the composite in an email dated 2011-05-24 and forwarded in an OTRS email sent the same day.
Title: GreenscreenCompare
Credit: Iman Crosson's Alphacat channel, YouTube videos, "President Obama on Death of Osama bin Laden (SPOOF)" and "President Obama on Death of Osama SPOOF- BEHIND THE SCENES"
Author: Iman Crosson
Permission:   This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page. Wikimedia has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by an OTRS member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2011052510000066. If you have questions about the archived correspondence, please use the OTRS noticeboard. Ticket link: https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2011052510000066
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes