A section of an intra-coded frame (frame 1) from a test sequence filmed in summer 2001 showing the top of a tree against blue sky with high contrast and many details, downscaled and encoded to AV1 using a version of the reference encoder from March 20, 2018 with image quality decreasing from left (quantizer 20) to right (quantizer 63).
Dr. Karl Mauthe, Producer: Martin Kreitl, Camera Operator: Jürgen Würzinger, Camera Assistant: Yean Ives Diss (Taurus Media Technik)
2001
<a rel="nofollow" class="external free" href="ftp://ftp.ldv.e-technik.tu-muenchen.de/pub/test_sequences/1080p/blue_sky.yuv">ftp://ftp.ldv.e-technik.tu-muenchen.de/pub/test_sequences/1080p/blue_sky.yuv</a>