In the movie projection industry, DCI is the dominant standard for 2K output.
|Format||Resolution||Display aspect ratio||Pixels|
|DCI 2K (native resolution)||2048 × 1080||1.90:1 (256:135, ~17:9)||2,211,840|
|DCI 2K (flat cropped)||1998 × 1080||1.85:1||2,157,840|
|DCI 2K (CinemaScope cropped)||2048 × 858||2.39:1||1,755,136|
Comparison to 1080pEdit
Occasionally, 1080p (Full HD or FHD) has been included into the 2K resolution definition. Although 1920x1080 could be considered as having a horizontal resolution of approximately 2,000 pixels, most media, including web content and books on video production, cinema references and definitions, define 1080p and 2K resolutions as separate definitions and not the same.
Although 1080p has the same vertical resolution as DCI 2K resolutions (1080 pixels), it has a smaller horizontal resolution below the range of 2K resolution formats.
- 1080p Full HD – digital video format with a resolution of 1920 × 1080
- 1440p Quad HD – digital video format with a vertical resolution of 1,440 pixels
- 21:9 – a common widescreen cinema aspect ratio
- 5K resolution – digital video formats with a horizontal resolution of around 5,000 pixels
- 10K resolution – digital video formats with a horizontal resolution of around 10,000 pixels
- 16K resolution – experimental VR format
- Ultra-high-definition television (UHDTV) – various digital video format standards for high resolution television
- Rec. 2020 – ITU-R Recommendation for UHDTV video formats with resolutions of 4K (3840 × 2160) and 8K (7680 × 4320)
- Aspect ratio (image) – proportional relationship between an image's width and height
- High Efficiency Video Coding (HEVC) – video standard that supports 4K & 8K UHDTV and resolutions up to 8192 × 4320
- Digital cinema
- Graphics display resolution
- James, Jack (2006). Digital Intermediates for Film and Video. Focal Press. p. 125. ISBN 978-0-240-80702-7. Retrieved April 19, 2014.
- "Digital Cinema System Specification" (PDF). Digital Cinema Initiatives. 10 October 2012. Archived from the original (PDF) on 2016-05-27. Retrieved 2015-04-02.
- Swinson, Peter R (November 2005). "DCI and OTHER Film Formats" (PDF).
- Lenovo. "What is 2K Resolution?".
- Ascher, Steven (2007). The Filmmaker's Handbook: A Comprehensive Guide for the Digital Age. Penguin. pp. 189, 714. ISBN 045-2-286-786. Retrieved March 29, 2015.
- Siglin, Tim (March 8, 2013). "What is 2K and 4K Video?". www.streamingmedia.com. Archived from the original on April 2, 2016. Retrieved March 29, 2015.
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