Digital Cinema Initiatives 4K standard: 4096x2160 pixels, the official cinema projection resolution.
Definition
DCI 4K (4096x2160) is the cinema standard for 4K projection defined by the Digital Cinema Initiatives. It is wider than UHD 4K (3840x2160), which is used for consumer displays.
Practical Application
All major cinema chains project to DCI specifications. Professional cinema cameras such as ARRI, RED, and Sony record native DCI 4K. Mastering for cinema distribution is done according to DCI specifications.
Technical Details
DCI 4K Flat (1.85:1): 3996x2160. DCI 4K Scope (2.39:1): 4096x1716. Color Space: DCI-P3. Bit Depth: 12-bit. Compression: JPEG2000. Container: MXF (DCP). The specification also includes security (Encryption) and quality control.
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