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Color
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PatchTool
Features
BabelColor Color Translator & Analyzer (CT&A)BabelColor CT&A lets you select, compare, and convert color samples from twenty preset RGB spaces, and a custom space that you can define with any Illuminant, primaries and gamma, in a color-managed environment. You can also select and convert colors from color catalogues (Color Decks); the provided catalogues are the colors of British Standard 5252, FED-STD-595B, Munsell, and RAL CLASSIC, and you can create your own catalogue by exporting a color list (ex. A Pantone color list saved in CxF format) using the "BabelColor CT&A Export" dialog of the PatchTool program (purchase of PatchTool not required for this export).
When connected to an Eye-One Pro (from X-Rite), you get these powerful spectral tools: a full featured densitometer; a RAL DESIGN converter tool; a unique set of Metamerism analysis tools to evaluate the constancy (i.e. shift) of colors under various lights, including two of your own lights; ambient illumination (ex.: light booths) and monitor evaluation tools based on ISO 3664, with the possibility of printing a single page report for compliance assessment; a multi-purpose graph tool where two inputs in any measurement mode (Emission, Ambient, Flash, or Reflectance) can be compared; and a set of tools to measure paper whiteness, brightness, fluorescence, and opacity, as well as measure white and black backings compliance.
Features
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Use this tool to determine a Color Correction Matrix between two instruments according to ASTM E1455-2010. A Color Correction Matrix helps improve inter-instrument agreement in emission (i.e. display) measurements; it can also be used to correct the response of a colorimeter designed for standard LCD displays when doing measurements on a wide gamut display. Please read this Application Note (PDF file) for more information on the Correction Matrix tool, with an example on how inter-instrument measurements are improved:
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This set of tools is specifically designed to measure white paper Whiteness, Brightness, Fluorescence, and Opacity in three clicks of your Eye-One Pro (requires a non-UV-cut model). Since these measurements need to be done on compliant white and black backings and require a well characterized UV-cut filter for fluorescence measurements, we also provide tools to check the compliance of such backings and measure the characteristics of UV-filters (backings and UV-filter not included). Click on the link below for an Application Note dedicated to fluorescence measurements:
AN-8 How to optimize the accuracy of fluorescence measurements with
BabelColor CT&A |
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By customer demand, it
is now possible to
measure a flash output using CT&A's
Graph tools. You
can measure a flash illuminance (in lux-sec) and get its color
temperature (CCT, in kelvin) as well as its Color Rendering Index
(CRI). You can also compare the flash spectrum against an ideal
Illuminant of the same intensity. |
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Convert color
lists using one or two ICC profiles, check if a color list
will be clipped by a profile conversion, and generate fixed pitch
color lists
in device dependent (RGB and CMYK) and device independent (L*a*b*,
L*C*h*, XYZ) color spaces. You can also get the patches located on a
profile edge or obtain the
gamut
volume of a profile. |
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When performing a
Quick-Test where a Neutral (i.e. gray) ramp and RGB ramps are measured
on a display, the resulting Compare file now includes a chromaticity
diagram (CIE1931 xy coordinates). This chromaticity
diagram shows the measured primaries locations relative to the ones of
standard RGB spaces.
You can use it, for example, to check how close a wide gamut display is
relative to the reference Adobe RGB space. Click
here for
What's new? in PatchTool 2.8. |
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This very comprehensive Application Note describes the structure and
geometry of the Optical Society of America
Uniform Color Scales
(OSA UCS).
The document contains examples of how to navigate within this color
space and presents many color scales (color ramps) images which can be
generated with PatchTool. The document includes four mini-tutorials. In
particular, one tutorial shows how to generate a uniform list of colors
which completely fills the gamut of a device profile; such a list can
then be used to check a monitor's accuracy with PatchTool
Display Check
for instance. Another tutorial shows how to compare the gamut of two
devices in specific color ranges. This document can be downloaded in the
Tutorials page
(Look for the
AN-7
App Note).. |
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Display check is a specialized tool of PatchTool. Use it to check your display calibration or to certify your monitor using the recommendations of IDEAlliance. Many popular colorimeters and spectrometers are supported. Click here for an example of a monitor certification report you can get from PatchTool (converted to a PDF format). Please download Application Note #4 (AN-4) on the Tutorials page for instructions on on how to get similar data. Use this tool in association with BabelColor CT&A
ISO 3664 tools
for complete monitor analysis. |
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PatchTool was tested by Miles Hecker (WyoFOTO) whose review was referred in The Luminous Landscape's "What's New" section. See also how Miles uses BabelColor CT&A to evaluate high-performance B&W ink-jet papers (see Part 2 of his Canson Platine Fibre Rag paper review). Marcel Patek Digital Photography: A Web site dedicated to the technical aspects of digital imaging, where you will find many examples of how to use BabelColor CT&A and PatchTool, with this page dedicated to BabelColor software. Univest PrePress: This Company, located in Kiev, uses both PatchTool and BabelColor CT&A to evaluate displays and viewing booths for their customers. Click on the following links for extracts from their reports; you can also do a right-click to download the file. You will find contact info in the documents.
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You need to find equivalents between
FED-STD-595B, PANTONE, MUNSELL, RAL or other
color spaces ? |
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