General Calibration Information
General information to help understand how to get the best possible calibration result, and potential problems and issues that users may encounter during calibration and colour management work.
User Guides
Chasing dE
Chasing Delta-E, Grey Scale and Primary Colours for Perfect Calibration
Chasing dE
chasing delta-e, why delta E is misleading, dE 2000 vs dE 1976 vs dE ITP, JND just noticeable difference, volumetric verification patch count, skin tone colour accuracy, memory colours, PQ HDR delta E ITP issues, grey scale and primary dE limitations
Data vs Legal Levels
Issues with incorrect levels mapping
Data vs Legal Levels
data vs legal TV levels, 0-255 vs 16-235 levels, 0-1023 vs 64-940 levels, signal path level mismatch, black and white clipping, level compression, EDID scaling, BarsandBlack calibration image, post-production signal path
Display Certification
What does manufacturer Display Certification actually mean?
Display Certification
what does display certification mean, Calman Verified, Pantone Validated, Technicolor Colour Certified, THX Certified, certification delta E tolerance, colour accuracy guarantee, certification vs true calibration accuracy
HDR Calibration
Calibration, or not, of HDR displays and TVs
HDR Calibration
HDR TV calibration limitations, HDR grading display calibration, HDfury metadata injection, Murideo SIX-G SEVEN-G patch generator, PGenerator HDR, Dolby Vision Calibration 2.0, HDR10 HLG calibration difference, Increased Resolution PQ LUT
Mac Colour Management
The issues with Mac ColorSync
Mac Colour Management
ColourSync, ICCs, ColorSync is always active, no bypass, inaccurate colour
Viewing Environment
Accepted standards for viewing environment & display calibration
Viewing Environment
SMPTE EBU ITU-R viewing standards, reference viewing environment vs home viewing environment, Grade-1 display specification, surround luminance, room illumination for grading, SDR and HDR viewing environment differences
What is a LUT?
Within the industry there is a lot of confusion regarding LUTs
What is a LUT?
what is a LUT, 1D LUT vs 3x3 matrix vs 3D LUT, LUT size and interpolation, calibration LUTs vs technical vs creative Look LUTs, film emulation LUT accuracy, LUT generation size vs profiling patch count
What is ACES?
What is ACES, what workflow benefits can it provide, and what alternatives are there?
What is ACES?
what is ACES, Scene Referred vs Display Referred workflow, IDT RRT ODT explained, ACEScc ACEScg ACESproxy, alternatives to ACES workflow, Viewing LUT working colour space, ACES suitability for VFX productions
What is HDR?
Understanding PQ HDR and HLG
What is HDR?
what is HDR, PQ vs HLG explained, HDR10 HDR10+ Dolby Vision, HDR metadata static and dynamic, Wide Colour Gamut Rec2020, absolute vs relative HDR standard, ABL auto brightness limiting, local dimming, HDR viewing environment
What is wrong with ICCs?
Why do ICC/ICM profiles often not work as expected?
What is wrong with ICCs?
why ICC profiles are unsuited to film and TV calibration, image correction vs true display calibration, CMM colour management module, rendering intents perceptual vs colourimetric, profiling patch count limits, chromatic adaptation Bradford transform, v4 ICC LutAtoBType 3D LUT emulation
Windows Colour Management
Issues with Windows Color Management
Windows Colour Management
Colour Management, not OS wide, inaccurate colour