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Media Composer 7.0 Color Management (LUTs). Igor Riđanović. Some new features in Media Composer 7.0. LUT and CDL support FrameFlex AMA media management Background transcoding. Technology. MXF, MOV are wrappers carrying encoded essence and metadata DNxHD, Prores are codecs
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Media Composer 7.0 Color Management (LUTs) Igor Riđanović
Some new features in Media Composer 7.0 • LUT and CDL support • FrameFlex • AMA media management • Background transcoding
Technology • MXF, MOV are wrappers carrying encoded essence and metadata • DNxHD, Prores are codecs • RAW are camera manufacturer proprietary files
Technology • AMA (Avid Media Access) • LUT (Lookup Table) • CDL (Color Decision List) • Rec. 709 color space
Terminology • Color model—an abstract primary color mixing principle • Color space—specific values for the primaries • Color gamut—unambiguous color set defined by the primaries • Gamma—nonlinear encoding
Color gamut PAR
Gamma perceived brightness recorded intensity Wolphram|Alpha linear light intensity
Device dependent color—numerical representation Values are intrinsically tied to the device R 255 G 255 B 000 R 255 G 255 B 000 sRGB color space (computer monitor) mystery color space (some handheld device)
Device dependent color R 205 G 012 B 005 R 205 G 012 B 005 device 1 source device R 205 G 012 B 005 device 2
Device dependent color R 205 G 012 B 005 source device R ? G ? B ? device 2
Device dependent color CMS R 205 G 012 B 005 source device R 212 G 008 B 010 device 2
Project setup • Y'CbCr—4:2:2 chroma subsampling • R'G'B' – 4:4:4 sampling • Both use 2.2 gamma
AMA plugins • Plugins are provided by third party manufacturers • Open console window: CTRL+6 or Command+6 • Execute AMA_ListPlugins
CDL (color decision list) TITLE: ONE EVENT CDL 001 Reel01 V C 10:05:29:14 10:05:43:08 01:00:00:00 01:00:13:18 *ASC_SOP (1.000000 1.000000 1.000000)(0.000000 0.000000 0.000000)(1.000000 1.000000 1.000000) *ASC_SAT 1.000000 Slope Offset Power p out = (i x s+o)
Legacy files import • Correct level settings • New color options for AMA linked files • FrameFlex
How do popular programs color manage? 0 255 235 255 0 16 16 700 mV 0 mV superblack superwhite
How do popular programs color manage? without dithering with dithering
Special Thanks James Mathers, Digital Cinema Society Matt Feury, Avid Technologies Luc Amiot, Avid Technologies Bojan Stanivukovich, T-Stop, Inc., Hollywood Schy Gleason, Clapping Trees Media