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SDR video with a conventional gamma curve and a bit depth of 8-bits per sample has a dynamic range of about 6 stops, assuming a luminance quantisation threshold of 5% is used. [10] A threshold of 5% is used in the paper (instead of the standard 2% threshold) to allow for the typical display being dimmer than ideal.
High-dynamic-range formats for image and video files are able to store more dynamic range than traditional 8-bit gamma formats. These formats include: HDR formats that can be used for both storage and transmission to HDR displays, such as: For video: HDR10; HDR10+ Dolby Vision; HLG (backwards compatible with SDR displays) For images:
Chart showing a conventional SDR gamma curve and the hybrid log–gamma curve. HLG uses a logarithmic curve for the upper half of the signal values, which allows for a larger dynamic range. HLG is an HDR format that uses the HLG transfer function, BT.2020 color primaries and a bitdepth of 10-bit. [8] HLG was designed to be backward compatible ...
HLG format is an HDR format that can be used for video and still images. [ 26 ] [ 27 ] It uses the HLG transfer function, Rec. 2020 color primaries, and a bit depth of 10 bits. [ 28 ] The format is backwards compatible with SDR UHDTV , but not with older SDR displays that do not implement the Rec. 2020 color standards.
Standard-dynamic-range video, color clarity and realism in images and videos, the current standard for video and cinema displays; Super Dynamic Range, SDR (audio) or XDR, an encoding system for audio cassettes; System of distinct representatives, in mathematics
Linear pulse-code modulation (LPCM, generally only described as PCM) is the format for uncompressed audio in media files and it is also the standard for CD-DA; note that in computers, LPCM is usually stored in container formats such as WAV, AIFF, or AU, or as raw audio format, although not technically necessary.
High Efficiency Image File Format (HEIF) is a digital container format for storing individual digital images and image sequences. The standard covers multimedia files that can also include other media streams, such as timed text, audio and video. [1] HEIF can store images encoded with multiple coding formats, for example both SDR and HDR images.
First is the potential for distracting motion artifacts due to interlaced video content. The solution is to either up-convert only to an interlaced BT.709 format at the same field rate, and scale the fields independently, or use motion processing to remove the inter-field motion and deinterlace, creating progressive frames. In the latter case ...