CT&A REVISION HISTORY

For versions 3.x and older, please consult the CT&A Help manual.

Version 5.1 Version 5.0 Version 4.6 / 4.6.1 Version 4.5.2 Version 4.5 Version 4.2.1 Version 4.2 Version 4.0

Version 4.6.1 b346 (2016-04-26)

Bug fix (Windows version only): ISO 3664+ tools: Fixed a bug, introduced in Version 4.6, causing printed reports to be empty pages.

Version 4.6 b345 (2016-04-05)

New feature: RGB vs RGB tool: Added computation and display of the Web Content Accessibility Guidelines (WCAG) Contrast Ratio for text content ( http://www.w3.org/TR/2008/REC-WCAG20-20081211/ ). o Get the Contrast Ratio as well as Go/No-Go flags for the Minimal contrast requirements (Level AA) and for Enhanced contrast (Level AAA), for both Normal text and Large text. o Get the Contrast Ratio and contrast acceptance data for either one of the selected colors against a white or black background, and for one color against the other. o The WCAG results can be printed in a text-based report. Improvements: Display profile: o When rendering a color patch, the program uses the profile assigned to the display corresponding to the window position. If the window is moved to another display, the patches are rendered with the new display profile; there is no need to manually select a profile in multi-display systems. o The Preferences dialog now shows the names and file locations of the profiles assigned to all connected displays. It also shows the profile corresponding to its location. (Mac) The program is now compiled using the ‘Cocoa’ Framework instead of the ‘Carbon’ Framework, which was made possible by dropping support for PowerPC. Some of the effects of this change are: o GUI appearance; for instance, the windows can now be resized by dragging any edge. o More accurate color rendition with wide gamut displays, and, for all displays, a better match with the numbers shown by the Mac ‘Digital Color Meter’ Utility. Bug fixes: CRI (Color Rendering Index) tools: The patches displays are now erased when all measurements are deleted. Whiteness tools: Now shows the percentage sign for opacity in the saved image.

Version 4.5.2 b335 (2015-11-23)

Bug fixes: Graph and Whiteness tools: Solved an issue where in some OS configurations the saved image was incomplete and was not generated with a 2X scale. RGB vs RGB tool: Illuminance (ambient) measurements with the i1Display Pro are now provided with the correct scaling. Other: (Windows) The Help manual is no longer available in a self-contained compiled HTML application; it is now provided as a PDF file.

Version 4.5 b327 (2014-12-19)

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. o Measurements are performed on targets located on a 5 x 5 uniform grid. o Measurements can be performed with White, Grey, and Dark-Grey targets. o Export a spreadsheet savvy text report or print a well formatted one-page report which presents the overall characterization information. o 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. Improvements: ISO 3664+ tools / Color monitors: Improved the ISO 12646:2008 Brightness uniformity measurements interface (3 x 3 non-uniform grid). o Measurements can now be performed with White, Grey, and Dark-Grey targets instead of just White. o 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. o 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). Other: 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 10.7. 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.

Version 4.2.1 b317 (2014-10-23)

Bug fix: For Windows XP ONLY: The 'i1Pro / i1Pro 2 (XRGA)' instrument selection can make CT&A 4.2 b316 close unexpectedly on Windows XP computers. The problem was fixed by replacing the software libraries of the i1Pro Software Development Kit (SDK) Version 4.2.0 by those of an older SDK; as a consequence, the menu to check i1Pro / i1 Pro 2 lamp restore, introduced in CT&A 4.2, is not available in the software package dedicated to Windows XP.

Version 4.2 b316 (2014-07-28)

New features: 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. o Test source data: CCT (kelvin); Duv (CIE1960); brightness (lux); LER (Light Efficiency Ratio, in lm/W); the Reference source (a blackbody or a D-Series illuminant). o CRI (Color Rendering Index): A graph of the 14 individual indices and Ra; numerical values of Ra (a general score based on the first 8 indices and better known as the current CRI), R9, R(9-14) (for indices 9 to 14) and R(1-14) for indices 1 to 14; a graph of the samples (a*, b*) coordinates; a representation of the samples illuminated by the Reference and Test sources; the CIELAB color difference between the patches. Ref.: CIE 13.3: 1995. o CQS (Color Quality Scale, NIST Version 9.0.3): A graph of the 15 individual indices and Qa; numerical values of Qa (general score based on the 15 indices), Qf (fidelity index) and Qg (relative gamut area); a graph of the samples (a*, b*) coordinates; a representation of the samples illuminated by the Reference and Test sources; the CIELAB color difference between the patches. Ref.: Wendy Davis, Yoshi Ohno, "Color quality scale," Optical Engineering 49(3), March 2010, 033602-1 to -16. o CRI2012 (nCRI Version 12.0): A graph of the 17 individual indices and Ra,2012; numerical value of Ra,2012 (based on the 17 indices); a graph of the samples (a'M, b'M) coordinates; a representation of the samples illuminated by the Reference and Test sources; the color difference between the patches. Ref.: KAG SMET, J Schanda, L Whitehead, RM Luo, "CRI2012: A proposal for updating the CIE colour rendering index," Lighting Res. Technol. 2013; 45: 689-709. o GAI (Gamut Area Index): Ref.: Mark S. Rea, Jean P. Freyssinier-Nova, "Color Rendering: A Tale of Two Metrics," COLOR research and application, Vol. 33, No. 3, June 2008, 192-202. o GAI and Ra: The arithmetic mean of GAI and Ra (the current CRI). Ref.: Kevin Smet, Wouter R. Ryckaert, Michael R. Pointer, Geert Deconinck, and Peter Hanselaer, "Correlation between color quality metric predictions and visual appreciation of light sources," OPTICS EXPRESS, Vol. 19, No. 9, 25 April 2011, 8151-8166. o MCRI (Memory Color Rendering Index): Rm (general memory color quality index); Sa (degree of similarity); Si (special color quality indicators of the ten objects). Ref.: K.A.G. Smet, W.R. Ryckaert, M.R. Pointer, G. Deconinck, P. Hanselaer, "A memory colour quality metric for white light sources," Energy and Buildings 49 (2012) 216-225. o Data input: Instrument or file input; a connected instrument is NOT required for file input. o File input: CGATS or Plain text files; 5 nm or 10 nm spectrum bandwidth; 380-730 nm or 400-700 nm spectrum range. The file must contain only one spectrum; multiple files can be inputted with drag-and-drop. o Supported instruments: Any i1Pro or i1Pro 2 with ambient adapter (the adapter is an option in some models). o Input is processed internally with a 5 nm bandwidth; 10 nm data is interpolated to 5 nm. o Custom export dialog: Select amongst the data used for the graphs, the general and specific metrics indices, and the Test source data. o Export a single file report with all measurements or only the selected measurements. o Export one file per measurement in either CGATS format, which can be used as file input, or in Plain text format. All measurements or only the selected measurements can be exported in batch. Color Management Module (CMM) changed from LCMS 1.19 to LCMS 2.5. o Full support of ICC v2 and ICC v4 profiles (LCMS 1.x had partial support of ICC v4 profiles). Improvements: i1Pro and i1Pro 2: o Now supports the i1 Pro SDK Version 4.2.0. o Added a menu to check i1Pro / i1 Pro 2 lamp restore. Lamp restoration is performed, if required, when the menu is called. Improved algorithm to compute the CCT. The algorithm is now more accurate over a larger chromaticity area. The acceptable isotemperature zone is between 1000 K and 100,000 K, with Duv (CIE1960) between +0.05 and - 0,05. o Tools which benefit from the improvement: RGB vs RGB, CRI, Graph, ISO 3664+, Metamerism Index.

Version 4.0 b298 (2013-04-03)

New features: Toolbar window: The tools can now be accessed with new a top-level window which contains: a toolbar, controls to select a measuring instrument, and status lights for the features supported by the connected instrument (measurement modes, measurement conditions, spectral tools compatibility). Separate tools windows. o One or more tool can be opened and used at any given time. o Simply click on a window and make a measurement by pressing the i1Pro or i1Pro 2 button, even if different measurement modes are selected in each window. o The Main screen of previous CT&A versions is now called the RGB vs RGB tool. This tool opens in a separate window, like the other spectral tools. Added support for the X-Rite i1Pro 2 spectrophotometer. o This instrument is used in the 'RGB vs RGB' tool and in all spectral tools. o Supported models: i1Pro 2 M0/M1/M2 and i1Pro 2 M2-only. o Supports the M0, M1, and M2 measurements mode for reflectance measurements. o Supports X-Rite’s XRGA calibration standard for reflectance measurements. o The i1Pro 2 can be used in CT&A on a PowerPC Mac with the older i1Pro driver; in this configuration, the i1Pro 2 behaves as an i1Pro. The new i1Pro 2 features are available only in conjunction with the new i1Pro 2 driver, which requires an Intel Mac with OS X 10.5.8+. i1Pro and i1Pro 2. o Both the older i1Pro and the new i1Pro 2 drivers are provided. The i1Pro2 driver is XRGA compliant and the older driver is NOT XRGA compliant. The new driver is referred to in CT&A as i1Pro / i1Pro 2 (XRGA); the older diver is referred to as i1Pro / i1Pro 2 (non-XRGA). You can thus make measurements with your instruments with or without XRGA calibration. o Calibration with the ‘i1Pro / i1Pro 2 (XRGA)’ driver always require that the instrument be positioned on its white calibration tile, even for measurement modes other than reflectance. Added support for the X-Rite i1Display Pro colorimeter. o This instrument is used in the RGB vs RGB tool (and not in the spectral tools). o Supported models: i1Display Pro hardware sold by X-Rite (i.e. the retail version, part #EODIS3-XR). Generic models sold by other companies (third parties, or OEM, part #EODIS-OEM) should also be compatible. At this time we cannot say if we will support or not custom models sold by other companies since separate agreements with these parties may be required. More specific info will be provided as new models are released. o CT&A can load and assign calibration matrices (contained in X-Rite Emissive Display Reference (EDR) files) specifically designed for various display technologies, and which provide improved measurement accuracy. Eight EDR files are supplied, including ones for OLED and Plasma displays; additional files could be added in the future without a need to reinstall CT&A. o Select between two measurement speeds. o Note: On Mac, OS X 10.5+ is required (Mac Intel tested, PowerPC TBD). FluoCheck tools: Added a set of tools to measure the effect of substrate fluorescence on measured colors. FluoCheck tools provide numerical data on the stability of a color under the M0, M1, and M2 Measurement Conditions as defined in ISO 13655. A Fluorescence Index (FI) is obtained by measuring a color using either M0 (i.e. Ill-A) or M1 (i.e. D50), and M2 (i.e. UV-cut), and computing the color difference between the two measurements. When two colors are compared, a Fluorescence Metamerism Index (FMI) is obtained by using the M2 measurements of the two colors, and either the M0 or M1 measurements (a different FMI is computed relative to M0 and M1). o An i1Pro 2 which supports the M0/M1/M2 measurement conditions is required to be able to use the FluoCheck tools. Density, Graph, and Metamerism Index tools: In reflectance mode, and if using an i1Pro 2 which support the M0/M1/M2 measurement conditions, you can now select the measurement condition applicable to the measured data. RAL Design tool: In reflectance mode, and if using an i1Pro 2 which support the M0/M1/M2 measurement conditions, you will now obtain the RAL Design measurement for all these measurement conditions. Whiteness tools: If using an i1Pro 2 which support the M0/M1/M2 measurement conditions, you can now obtain the fluorescence value by using the measurements corresponding to the M0 and M2 measurement conditions, without the need for an external UV filter. Preferences: You can now select between Bradford or CIECAT02 as the Chromatic Adaptation Transform (CAT) to be used for space conversion in the 'RGB vs RGB' and 'MI' tools, and to compute display colors. Improvements: RGB vs RGB tool (the Main screen of previous CT&A versions): o Entering data with an instrument is now done with dedicated controls which appear in the window whenever the 'L*a*b* / L*u*v* input' checkbox is selected. Each side, Space #1 and Space #2, can be set to use different measurement modes. o This window has a dedicated menu that regroups the functions which are dedicated to this tool. This window also has three dedicated icons on the toolbar, with two of these that can be used to open data tables and change some graphics on the chromaticity diagram. o Custom RGB space dialog: This dialog can also be called from the RGB space selection menu in Space #1 and Space #2. Improved data entry feedback in the dialog. The other dialog parameters and the graphics are updated dynamically as you enter the values. o The 'Bradford matrices' tables has been replaced by 'CAT matrices' so that both Bradford and CIECAT02 matrices can be inspected and copied. Density tools: The density standards now clearly correspond to those of ISO 5-3. Changing the density status no longer requires deleting previous measurements; the previous measurements are now recomputed according to the selected status. ISO 3664+ tools: Improved accuracy for MI (ISO 23603 / CIE S 012) and CRI (CIE 13; also computed in the Graph and Metamerism Index tools). Metamerism Index tools: Patches are not completely surrounded by a thin black border; this enables better discrimination for alike colors. Improved matching between the displayed colors on the various tools for different combinations of illuminants and CAT. Whenever feasible, a measured color is shown as it would appear under the selected illuminant (as in a virtual light booth). Measuring instruments: Instrument detection and connection is more robust and user-friendly. Emission measurements: The program now shows the White Point luminance and CCT in the toolbar window when making an calibration in emission mode. The program now better manages the device used for emission calibration (LEFT, RIGHT, or OTHER display). Default values are assigned if there is a problem measuring the White Point. Help manual: Simplified Table of Contents structure.
BabelColor ®
Color Measurement and Analysis
Features Features Specifications Specifications Screenshots Screenshots

Version 5.0 b358 (2016-06-20)

New features: IES TM-30-15 (CRI tools): Added the IES Method for Evaluating Light Source Color Rendition to the CRI tools ( https://www.ies.org/ ). o 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). o Graph displays: A graph of the reference source, which is different from the source used in other color rendering metrics when the CCT is between 4500 K and 5500 K; a bar graph of the color fidelity by sample (Rfces); a bar graph of the color fidelity by Hue Angle Bin (Rfh); a graph of the average chromaticity (a'M, b'M) of the reference and test data of the Hue Angle Bins, which is used to compute the gamut area; a Color Vector Graphic (CVG) used to evaluate color saturation and desaturation; a plot of Rg versus Rf; and a visual representation of the 99 CES reference and test patches. o Data input: Instrument or file input; a connected instrument is NOT required for file input. o File input: CGATS or Plain text files; 5 nm or 10 nm spectrum bandwidth; 380-730 nm or 400-700 nm spectrum ranges. The file may contain one or more spectrums; multiple files can be inputted with drag-and-drop. o Supported instruments: Any i1Pro or i1Pro 2 with ambient adapter (the adapter is an option in some models). o Input is processed internally with a 5 nm bandwidth; 10 nm data is interpolated to 5 nm. o Custom export dialog: Select amongst the data used for the graphs, the general and specific metrics indices, and the Test source data. o Export all measurements or only selected measurements. o Export in a single file report or in a batch of individual files (one file per measurement), or both options. o The single file report or the individual files can be exported in either CGATS format, which can easily be used for file input afterwards, or in Plain text format. ISO 3664+ tools: Data entry forms were added to fill the reports description data fields. The forms appear when you press the ‘Print report…’ button. Two forms are presented, one for the P1, P2, and T1 Viewing Conditions, and another for the Color monitors  Viewing Condition. Improvements: CRI tools: o You can now select one or two of the available metrics, in any order, for better display use. o A separate button was added to load a file from an input menu; this is useful if an instrument is not connected when you use the CRI tools. You can also drag and drop one or more files on the button (you can still drag and drop files on the data table!). o You can now open files with more than one spectrum. o You can now also select the CGATS file type for ‘One file’ reports; this is useful if you want to open all your measurements from one file afterwards. o A ‘Resample’ option was added to the ‘Spectrum bandwidth’ section of the CRI export dialog. This option is recommended when you export measurements made with a 5 nm bandwidth to a 10 nm bandwidth. ISO 3664+ tools: o A separate button was added to load a file (with one spectrum) from an input menu. You can also drag and drop one (1) file on the button. o Because of this new button, you can now load a file even if an instrument is NOT connected! Bug fixes: ISO 3664+ tools (Windows version only): Now correctly shows the text and background colors of the PASS/FAIL labels. Please note that the text was always correct. ISO 3664+ tools (Mac version only): Corrected a problem where, is some cases, the arrow buttons did not change the measurement position. Before the fix, the workaround was to first press on the ‘Tab’ key before using the arrow buttons. Other: New licensing system: o Licensing is now based on a ‘Product Key’ which is used to activate a specific computer. o You can transfer a Product Key to another computer by deactivating the first computer and activating the second one. If you  are connected to the Internet, this process is free and you can repeat it as you require. If the computer is not connected to the Internet, offline activation and deactivation is possible but a service fee is required for each activation; this fee can be paid from the BabelColor Web site. o The same key can be used for the Mac and Windows versions (one OS at a time!). o Once a Product Key is activated on a computer, an Internet connection is not required.

Version 5.1 b364 (2017-01-31)

New features: Metamerism Index (MI) tools: o Added the Metameric Index (MI) computed according to CIE15:2004, Section 9.2.2.3. This index is computed when the Special Metamerism Index (SMI) obtained with the Reference illuminant is NOT zero. The MI is derived with a Multiplicative Correction applied to the data of the Sample patch obtained with the Test illuminant. o Note: The MI computed in previous versions, based on the HunterLab formula, is still available. It is now identified as “MI (HunterLab)”. o File input: It is now possible to enter spectral data from a file in addition to measurement from an instrument. A connected instrument is NOT required for file input. Input can be assigned to any of the supported Measurement Conditions (M0, M1, or M2). o Input file formats: CGATS or Plain text files; 380-730 nm or 400-700 nm spectrum ranges; 10 nm bandwidth. The file may contain one or more spectrums; multiple files can be inputted with drag-and-drop. o In addition to the MI report, you can now save the Reference and Sample patches spectrums in a CGATS format text file, which can easily be used for file input afterwards. RAL DESIGN tool: o File input: It is now possible to convert spectral data from a file. A connected instrument is NOT required for file input. The input data is immediately converted and saved in a CGATS format text file. o Input file formats: CGATS or Plain text files; 380-730 nm or 400-700 nm spectrum ranges; 10 nm bandwidth. The file may contain one or more spectrums; multiple files can be inputted with drag-and-drop. o Output data: L*a*b* computed with Illuminant D65 and the 10 degree Observer; the color in RAL DESIGN notation; the individual RAL Hue, Lightness, and Chroma (HLC) components. Improvements: CRI tools: Data table interface improvements. o Now updates the CRI window when browsing in the data table with the up-down arrows; there is no need to do a carriage return. o Will now select all ambient sources added by drag-and-drop in the data table. o The last input is always selected for display purposes and the data table is automatically scrolled to the bottom. o When measuring a light source with an instrument, the sample name is selected and you can edit it immediately. FluoCheck tools: When saving the report from an instrument measurement, the report now includes the spectral data for all Measurement Conditions. RAL DESIGN tool: When saving the report from an instrument measurement, the report now includes the spectral data for all applicable Measurement Conditions. RGB vs RGB tool: The CIEDE2000 color difference is now computed with the alternate three terms form equation in which the fourth term associated with rotation (RT) is now integrated with the chroma and hue differences. The DeltaE* display of the RGB vs RGB tool now shows the weighted L00, C00, and H00 values (and h’), instead of the unweighted L*, C*, and H* values (and h). Preferences – Color tab: The dialog now includes buttons which open various folders where user and system display profiles are stored. Other: Preferences – Color tab (Mac): Because Apple ColorSync is deprecated, it is no longer possible to provide the path of a display profile. The name of the profile assigned to a monitor is still available. Windows OS: Windows Vista is no longer supported. i1Pro DLL (Windows): Version 4.2.3 of the library (i1Pro.dll) is now provided with the program.

CT&A REVISION HISTORY

For versions 3.x and older, please

consult the CT&A Help manual.

Version 5.1 Version 5.0 Version 4.6 / 4.6.1 Version 4.5.2 Version 4.5 Version 4.2.1 Version 4.2 Version 4.0

Version 4.5.2 b335 (2015-11-23)

Bug fixes: Graph and Whiteness tools: Solved an issue where in some OS configurations the saved image was incomplete and was not generated with a 2X scale. RGB vs RGB tool: Illuminance (ambient) measurements with the i1Display Pro are now provided with the correct scaling. Other: (Windows) The Help manual is no longer available in a self-contained compiled HTML application; it is now provided as a PDF file.

Version 4.5 b327 (2014-12-19)

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. o Measurements are performed on targets located on a 5 x 5 uniform grid. o Measurements can be performed with White, Grey, and Dark-Grey targets. o Export a spreadsheet savvy text report or print a well formatted one-page report which presents the overall characterization information. o 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. Improvements: ISO 3664+ tools / Color monitors: Improved the ISO 12646:2008 Brightness uniformity measurements interface (3 x 3 non-uniform grid). o Measurements can now be performed with White, Grey, and Dark-Grey targets instead of just White. o 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. o 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). Other: 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 10.7. 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.

Version 4.2.1 b317 (2014-10-23)

Bug fix: For Windows XP ONLY: The 'i1Pro / i1Pro 2 (XRGA)' instrument selection can make CT&A 4.2 b316 close unexpectedly on Windows XP computers. The problem was fixed by replacing the software libraries of the i1Pro Software Development Kit (SDK) Version 4.2.0 by those of an older SDK; as a consequence, the menu to check i1Pro / i1 Pro 2 lamp restore, introduced in CT&A 4.2, is not available in the software package dedicated to Windows XP.

Version 4.2 b316 (2014-07-28)

New features: 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. o Test source data: CCT (kelvin); Duv (CIE1960); brightness (lux); LER (Light Efficiency Ratio, in lm/W); the Reference source (a blackbody or a D-Series illuminant). o CRI (Color Rendering Index): A graph of the 14 individual indices and Ra; numerical values of Ra (a general score based on the first 8 indices and better known as the current CRI), R9, R(9- 14) (for indices 9 to 14) and R(1-14) for indices 1 to 14; a graph of the samples (a*, b*) coordinates; a representation of the samples illuminated by the Reference and Test sources; the CIELAB color difference between the patches. Ref.: CIE 13.3: 1995. o CQS (Color Quality Scale, NIST Version 9.0.3): A graph of the 15 individual indices and Qa; numerical values of Qa (general score based on the 15 indices), Qf (fidelity index) and Qg  (relative gamut area); a graph of the samples (a*, b*) coordinates; a representation of the samples illuminated by the Reference and Test sources; the CIELAB color difference between the patches. Ref.: Wendy Davis, Yoshi Ohno, "Color quality scale," Optical Engineering 49(3), March 2010, 033602-1 to -16. o CRI2012 (nCRI Version 12.0): A graph of the 17 individual indices and Ra,2012; numerical value of Ra,2012 (based on the 17 indices); a graph of the samples (a'M, b'M) coordinates; a representation of the samples illuminated by the Reference and Test sources; the color difference between the patches. Ref.: KAG SMET, J Schanda, L Whitehead, RM Luo, "CRI2012: A proposal for updating the CIE colour rendering index," Lighting Res. Technol. 2013; 45: 689-709. o GAI (Gamut Area Index): Ref.: Mark S. Rea, Jean P. Freyssinier-Nova, "Color Rendering: A Tale of Two Metrics," COLOR research and application, Vol. 33, No. 3, June 2008, 192-202. o GAI and Ra: The arithmetic mean of GAI and Ra  (the current CRI). Ref.: Kevin Smet, Wouter R. Ryckaert, Michael R. Pointer, Geert Deconinck, and Peter Hanselaer, "Correlation between color quality metric predictions and visual appreciation of light sources," OPTICS EXPRESS, Vol. 19, No. 9, 25 April 2011, 8151-8166. o MCRI (Memory Color Rendering Index): Rm  (general memory color quality index); Sa  (degree of similarity); Si (special color quality indicators of the ten objects). Ref.: K.A.G. Smet, W.R. Ryckaert, M.R. Pointer, G. Deconinck, P. Hanselaer, "A memory colour quality metric for white light sources," Energy and Buildings 49 (2012) 216-225. o Data input: Instrument or file input; a connected instrument is NOT required for file input. o File input: CGATS or Plain text files; 5 nm or 10 nm spectrum bandwidth; 380-730 nm or 400- 700 nm spectrum range. The file must contain only one spectrum; multiple files can be inputted with drag-and-drop. o Supported instruments: Any i1Pro or i1Pro 2 with ambient adapter (the adapter is an option in some models). o Input is processed internally with a 5 nm bandwidth; 10 nm data is interpolated to 5 nm. o Custom export dialog: Select amongst the data used for the graphs, the general and specific metrics indices, and the Test source data. o Export a single file report with all measurements or only the selected measurements. o Export one file per measurement in either CGATS format, which can be used as file input, or in Plain text format. All measurements or only the selected measurements can be exported in batch. Color Management Module (CMM) changed from LCMS 1.19 to LCMS 2.5. o Full support of ICC v2 and ICC v4 profiles (LCMS 1.x had partial support of ICC v4 profiles). Improvements: i1Pro and i1Pro 2: o Now supports the i1 Pro SDK Version 4.2.0. o Added a menu to check i1Pro / i1 Pro 2 lamp restore. Lamp restoration is performed, if required, when the menu is called. Improved algorithm to compute the CCT. The algorithm is now more accurate over a larger chromaticity area. The acceptable isotemperature zone is between 1000 K and 100,000 K, with Duv  (CIE1960) between +0.05 and - 0,05. o Tools which benefit from the improvement: RGB vs RGB, CRI, Graph, ISO 3664+, Metamerism Index.

Version 4.0 b298 (2013-04-03)

New features: Toolbar window: The tools can now be accessed with new a top-level window which contains: a toolbar, controls to select a measuring instrument, and status lights for the features supported by the connected instrument (measurement modes, measurement conditions, spectral tools compatibility). Separate tools windows. o One or more tool can be opened and used at any given time. o Simply click on a window and make a measurement by pressing the i1Pro or i1Pro 2 button, even if different measurement modes are selected in each window. o The Main screen of previous CT&A versions is now called the RGB vs RGB tool. This tool opens in a separate window, like the other spectral tools. Added support for the X-Rite i1Pro 2 spectrophotometer. o This instrument is used in the 'RGB vs RGB' tool and in all spectral tools. o Supported models: i1Pro 2 M0/M1/M2 and i1Pro 2 M2-only. o Supports the M0, M1, and M2 measurements mode for reflectance measurements. o Supports X-Rite’s XRGA calibration standard for reflectance measurements. o The i1Pro 2 can be used in CT&A on a PowerPC Mac with the older i1Pro driver; in this configuration, the i1Pro 2 behaves as an i1Pro. The new i1Pro 2 features are available only in conjunction with the new i1Pro 2 driver, which requires an Intel Mac with OS X 10.5.8+. i1Pro and i1Pro 2. o Both the older i1Pro and the new i1Pro 2 drivers are provided. The i1Pro2 driver is XRGA compliant and the older driver is NOT XRGA compliant. The new driver is referred to in CT&A as i1Pro / i1Pro 2 (XRGA); the older diver is referred to as i1Pro / i1Pro 2 (non-XRGA). You can thus make measurements with your instruments with or without XRGA calibration. o Calibration with the ‘i1Pro / i1Pro 2 (XRGA)’ driver always require that the instrument be positioned on its white calibration tile, even for measurement modes other than reflectance. Added support for the X-Rite i1Display Pro colorimeter. o This instrument is used in the RGB vs RGB tool  (and not in the spectral tools). o Supported models: i1Display Pro hardware sold by X-Rite (i.e. the retail version, part #EODIS3- XR). Generic models sold by other companies (third parties, or OEM, part #EODIS-OEM) should also be compatible. At this time we cannot say if we will support or not custom models sold by other companies since separate agreements with these parties may be required. More specific info will be provided as new models are released. o CT&A can load and assign calibration matrices (contained in X-Rite Emissive Display Reference (EDR) files) specifically designed for various display technologies, and which provide improved measurement accuracy. Eight EDR files are supplied, including ones for OLED and Plasma displays; additional files could be added in the future without a need to reinstall CT&A. o Select between two measurement speeds. o Note: On Mac, OS X 10.5+ is required (Mac Intel tested, PowerPC TBD). FluoCheck tools: Added a set of tools to measure the effect of substrate fluorescence on measured colors. FluoCheck tools provide numerical data on the stability of a color under the M0, M1, and M2 Measurement Conditions as defined in ISO 13655. A Fluorescence Index (FI) is obtained by measuring a color using either M0 (i.e. Ill-A) or M1 (i.e. D50), and M2 (i.e. UV-cut), and computing the color difference between the two measurements. When two colors are compared, a Fluorescence Metamerism Index (FMI) is obtained by using the M2 measurements of the two colors, and either the M0 or M1 measurements (a different FMI is computed relative to M0 and M1). o An i1Pro 2 which supports the M0/M1/M2 measurement conditions is required to be able to use the FluoCheck tools. Density, Graph, and Metamerism Index tools: In reflectance mode, and if using an i1Pro 2 which support the M0/M1/M2 measurement conditions, you can now select the measurement condition applicable to the measured data. RAL Design tool: In reflectance mode, and if using an i1Pro 2 which support the M0/M1/M2 measurement conditions, you will now obtain the RAL Design measurement for all these measurement conditions. Whiteness tools: If using an i1Pro 2 which support the M0/M1/M2 measurement conditions, you can now obtain the fluorescence value by using the measurements corresponding to the M0 and M2 measurement conditions, without the need for an external UV filter. Preferences: You can now select between Bradford or CIECAT02 as the Chromatic Adaptation Transform (CAT) to be used for space conversion in the 'RGB vs RGB' and 'MI' tools, and to compute display colors. Improvements: RGB vs RGB tool (the Main screen of previous CT&A versions): o Entering data with an instrument is now done with dedicated controls which appear in the window whenever the 'L*a*b* / L*u*v* input' checkbox is selected. Each side, Space #1 and Space #2, can be set to use different measurement modes. o This window has a dedicated menu that regroups the functions which are dedicated to this tool. This window also has three dedicated icons on the toolbar, with two of these that can be used to open data tables and change some graphics on the chromaticity diagram. o Custom RGB space dialog: This dialog can also be called from the RGB space selection menu in Space #1 and Space #2. Improved data entry feedback in the dialog. The other dialog parameters and the graphics are updated dynamically as you enter the values. o The 'Bradford matrices' tables has been replaced by 'CAT matrices' so that both Bradford and CIECAT02 matrices can be inspected and copied. Density tools: The density standards now clearly correspond to those of ISO 5-3. Changing the density status no longer requires deleting previous measurements; the previous measurements are now recomputed according to the selected status. ISO 3664+ tools: Improved accuracy for MI (ISO 23603 / CIE S 012) and CRI (CIE 13; also computed in the Graph and Metamerism Index tools). Metamerism Index tools: Patches are not completely surrounded by a thin black border; this enables better discrimination for alike colors. Improved matching between the displayed colors on the various tools for different combinations of illuminants and CAT. Whenever feasible, a measured color is shown as it would appear under the selected illuminant (as in a virtual light booth). Measuring instruments: Instrument detection and connection is more robust and user-friendly. Emission measurements: The program now shows the White Point luminance and CCT in the toolbar window when making an calibration in emission mode. The program now better manages the device used for emission calibration (LEFT, RIGHT, or OTHER display). Default values are assigned if there is a problem measuring the White Point. Help manual: Simplified Table of Contents structure.
BabelColor ®
Features Features Specifications Specifications Screenshots Screenshots

Version 4.6.1 b346 (2016-04-26)

Bug fix (Windows version only): ISO 3664+ tools: Fixed a bug, introduced in Version 4.6, causing printed reports to be empty pages.

Version 4.6 b345 (2016-04-05)

New feature: RGB vs RGB tool: Added computation and display of the Web Content Accessibility Guidelines (WCAG) Contrast Ratio for text content ( http://www.w3.org/TR/2008/REC-WCAG20-20081211/  ). o Get the Contrast Ratio as well as Go/No-Go flags for the Minimal contrast requirements (Level AA) and for Enhanced contrast (Level AAA), for both Normal text and Large text. o Get the Contrast Ratio and contrast acceptance data for either one of the selected colors against a white or black background, and for one color against the other. o The WCAG results can be printed in a text-based report. Improvements: Display profile: o When rendering a color patch, the program uses the profile assigned to the display corresponding to the window position. If the window is moved to another display, the patches are rendered with the new display profile; there is no need to manually select a profile in multi-display systems. o The Preferences dialog now shows the names and file locations of the profiles assigned to all connected displays. It also shows the profile corresponding to its location. (Mac) The program is now compiled using the ‘Cocoa’ Framework instead of the ‘Carbon’ Framework, which was made possible by dropping support for PowerPC. Some of the effects of this change are: o GUI appearance; for instance, the windows can now be resized by dragging any edge. o More accurate color rendition with wide gamut displays, and, for all displays, a better match with the numbers shown by the Mac ‘Digital Color Meter’ Utility. Bug fixes: CRI (Color Rendering Index) tools: The patches displays are now erased when all measurements are deleted. Whiteness tools: Now shows the percentage sign for opacity in the saved image.

Version 5.0 b358 (2016-06-20)

New features: IES TM-30-15 (CRI tools): Added the IES Method for Evaluating Light Source Color Rendition to the CRI tools ( https://www.ies.org/ ). o 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). o Graph displays: A graph of the reference source, which is different from the source used in other color rendering metrics when the CCT is between 4500 K and 5500 K; a bar graph of the color fidelity by sample (Rfces); a bar graph of the color fidelity by Hue Angle Bin (Rfh); a graph of the average chromaticity (a'M, b'M) of the reference and test data of the Hue Angle Bins, which is used to compute the gamut area; a Color Vector Graphic (CVG) used to evaluate color saturation and desaturation; a plot of Rg  versus Rf; and a visual representation of the 99 CES reference and test patches. o Data input: Instrument or file input; a connected instrument is NOT required for file input. o File input: CGATS or Plain text files; 5 nm or 10 nm spectrum bandwidth; 380-730 nm or 400- 700 nm spectrum ranges. The file may contain one or more spectrums; multiple files can be inputted with drag-and-drop. o Supported instruments: Any i1Pro or i1Pro 2 with ambient adapter (the adapter is an option in some models). o Input is processed internally with a 5 nm bandwidth; 10 nm data is interpolated to 5 nm. o Custom export dialog: Select amongst the data used for the graphs, the general and specific metrics indices, and the Test source data. o Export all measurements or only selected measurements. o Export in a single file report or in a batch of individual files (one file per measurement), or both options. o The single file report or the individual files can be exported in either CGATS format, which can easily be used for file input afterwards, or in Plain text format. ISO 3664+ tools: Data entry forms were added to fill the reports description data fields. The forms appear when you press the ‘Print report…’ button. Two forms are presented, one for the P1, P2, and T1  Viewing Conditions, and another for the Color monitors Viewing Condition. Improvements: CRI tools: o You can now select one or two of the available metrics, in any order, for better display use. o A separate button was added to load a file from an input menu; this is useful if an instrument is not connected when you use the CRI tools. You can also drag and drop one or more files on the button (you can still drag and drop files on the data table!). o You can now open files with more than one spectrum. o You can now also select the CGATS file type for ‘One file’ reports; this is useful if you want to open all your measurements from one file afterwards. o A ‘Resample’ option was added to the ‘Spectrum bandwidth’ section of the CRI export dialog. This option is recommended when you export measurements made with a 5 nm bandwidth to a 10 nm bandwidth. ISO 3664+ tools: o A separate button was added to load a file (with one spectrum) from an input menu. You can also drag and drop one (1) file on the button. o Because of this new button, you can now load a file even if an instrument is NOT connected! Bug fixes: ISO 3664+ tools (Windows version only): Now correctly shows the text and background colors of the PASS/FAIL labels. Please note that the text was always correct. ISO 3664+ tools (Mac version only): Corrected a problem where, is some cases, the arrow buttons did not change the measurement position. Before the fix, the workaround was to first press on the ‘Tab’ key before using the arrow buttons. Other: New licensing system: o Licensing is now based on a ‘Product Key’ which is used to activate a specific computer. o You can transfer a Product Key to another computer by deactivating the first computer and activating the second one. If you  are connected to the Internet, this process is free and you can repeat it as you require. If the computer is not connected to the Internet, offline activation and deactivation is possible but a service fee is required for each activation; this fee can be paid from the BabelColor Web site. o The same key can be used for the Mac and Windows versions (one OS at a time!). o Once a Product Key is activated on a computer, an Internet connection is not required.

Version 5.1 b364 (2017-01-31)

New features: Metamerism Index (MI) tools: o Added the Metameric Index (MI) computed according to CIE15:2004, Section 9.2.2.3. This index is computed when the Special Metamerism Index (SMI) obtained with the Reference illuminant is NOT zero. The MI is derived with a Multiplicative Correction applied to the data of the Sample patch obtained with the Test illuminant. o Note: The MI computed in previous versions, based on the HunterLab formula, is still available. It is now identified as “MI (HunterLab)”. o File input: It is now possible to enter spectral data from a file in addition to measurement from an instrument. A connected instrument is NOT required for file input. Input can be assigned to any of the supported Measurement Conditions (M0, M1, or M2). o Input file formats: CGATS or Plain text files; 380- 730 nm or 400-700 nm spectrum ranges; 10 nm bandwidth. The file may contain one or more spectrums; multiple files can be inputted with drag-and-drop. o In addition to the MI report, you can now save the Reference and Sample patches spectrums in a CGATS format text file, which can easily be used for file input afterwards. RAL DESIGN tool: o File input: It is now possible to convert spectral data from a file. A connected instrument is NOT required for file input. The input data is immediately converted and saved in a CGATS format text file. o Input file formats: CGATS or Plain text files; 380- 730 nm or 400-700 nm spectrum ranges; 10 nm bandwidth. The file may contain one or more spectrums; multiple files can be inputted with drag-and-drop. o Output data: L*a*b* computed with Illuminant D65 and the 10 degree Observer; the color in RAL DESIGN notation; the individual RAL Hue, Lightness, and Chroma (HLC) components. Improvements: CRI tools: Data table interface improvements. o Now updates the CRI window when browsing in the data table with the up-down arrows; there is no need to do a carriage return. o Will now select all ambient sources added by drag-and-drop in the data table. o The last input is always selected for display purposes and the data table is automatically scrolled to the bottom. o When measuring a light source with an instrument, the sample name is selected and you can edit it immediately. FluoCheck tools: When saving the report from an instrument measurement, the report now includes the spectral data for all Measurement Conditions. RAL DESIGN tool: When saving the report from an instrument measurement, the report now includes the spectral data for all applicable Measurement Conditions. RGB vs RGB tool: The CIEDE2000 color difference is now computed with the alternate three terms form equation in which the fourth term associated with rotation (RT) is now integrated with the chroma and hue differences. The DeltaE* display of the RGB vs RGB tool now shows the weighted L00, C00, and H00  values (and h’), instead of the unweighted L*, C*, and H* values (and h). Preferences – Color tab: The dialog now includes buttons which open various folders where user and system display profiles are stored. Other: Preferences – Color tab (Mac): Because Apple ColorSync is deprecated, it is no longer possible to provide the path of a display profile. The name of the profile assigned to a monitor is still available. Windows OS: Windows Vista is no longer supported. i1Pro DLL (Windows): Version 4.2.3 of the library (i1Pro.dll) is now provided with the program.