What is new in this release:
- Added the Spot Colour Tone Value (SCTV) formula for "Dot/Tone (Dot area)" measurements as defined in ISO 20654-2018 in the "Density tool".
What is new in version 5.1.1:
- Now saves a copy of the display profile in the user documents folder when doing a Display-Check, plus various improvements and bug fixes.
What is new in version 5.1:
- Added the Metameric Index (MI) computed according to CIE15:2004, Section 9.2.2.3.
- Added file input with no instrument in the Metamerism Index and RAL DESIGN tools.
- Improved data table interface for the CRI tools.
- New in 5.0: Addition of the IES TM-30-15 Method to the CRI tools.
- See the CT&A Revision History page for all changes.
What is new in version 5.0b358:
Data output: The Fidelity Index (Rf); the Gamut Index (Rg); the fidelity index for skin (Rf,skin); the color fidelity (Rfces) for each of the 99 Color Evaluation Sample (CES); the color fidelity (Rfh) for each of the 16 Hue Angle Bins; the chromaticity coordinates (J'a'b') of all CES reference and test patches; the color difference (DeltaE') for each set of CES patches; the average chromaticity coordinates (a'M, b'M) of the Hue Angle Bins; and the normalized chromaticity data used to draw the Color Vector Graphic (CVG).
What is new in version 4.5:
New features:
- ISO 3664+ tools / Color monitors: Added support for measuring the Tone uniformity (i.e. Color uniformity, Section 4.2.2) and Tonality Evaluation (i.e. Grey/White Tone ratio uniformity, Section 4.2.3) requirements of ISO 12646:2014-Final Draft.
- Measurements are performed on targets located on a 5 x 5 uniform grid.
- Measurements can be performed with White, Grey, and Dark-Grey targets.
- Export a spreadsheet savvy text report or print a well formatted one-page report which presents the overall characterization information.
- Built-in dialog to create image files of targets for any display size. Separate files are generated for the White, Grey, and Dark-Grey target patches. File formats : PNG or TIFF; RGB; 8-bit.
- ISO 3664+ tools / Color monitors: Improved the ISO 12646:2008 Brightness uniformity measurements interface (3 x 3 non-uniform grid).
- Measurements can now be performed with White, Grey, and Dark-Grey targets instead of just White.
- Built-in dialog to create image files of targets for any display size. Separate files are generated for the White, Grey, and Dark-Grey target patches. File formats : PNG or TIFF; RGB; 8-bit.
- When doing measurements with the 'Take all' sequence, you can now change the target position at anytime (if you want to go back to redo a bad measurement for instance).
- Complete revision of Tutorial 8 of the Help manual (Measure your display characteristics with the ISO 3664+ tools).
- (Windows) The minimal system requirement is now Windows Vista. As previously announced, CT&A Version 4.2.1 was the last version to support Windows XP.
- (Mac) The minimum system requirement is now Mac OS X 10.6. As previously announced, CT&A Version 4.2 was the last version to support PowerPC. Future CT&A versions may require Mac OS X 10.7 (Lion) or newer.
What is new in version 4.2:
CRI (Color Rendering Index) tools : Added a set of tools to evaluate the color rendering properties of white-light sources. The tools comprise the current CRI standard as well as proposed replacement metrics, and new metrics for gamut area and memory colors.
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