Clear Skies Ahead: Towards Real-Time Automatic Sky Replacement in Video

Tavi Halperin, Harel Cain, Ofir Bibi, Michael Werman

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Digital videos such as those captured by a smartphone often exhibit exposure inconsistencies, a poorly exposed sky, or simply suffer from an uninteresting or plain looking sky. Professionals may edit these videos using advanced and time-consuming tools unavailable to most users, to replace the sky with a more expressive or imaginative sky. In this work, we propose an algorithm for automatic replacement of the sky region in a video with a different sky, providing nonprofessional users with a simple yet efficient tool to seamlessly replace the sky. The method is fast, achieving close to real-time performance on mobile devices and the user's involvement can remain as limited as simply selecting the replacement sky.

Original languageAmerican English
Pages (from-to)207-218
Number of pages12
JournalComputer Graphics Forum
Issue number2
StatePublished - May 2019

Bibliographical note

Publisher Copyright:
© 2019 The Author(s) Computer Graphics Forum © 2019 The Eurographics Association and John Wiley & Sons Ltd. Published by John Wiley & Sons Ltd.


  • CCS Concepts
  • Image processing
  • • Computing methodologies → Computational photography


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