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Color
conversion tools,
printer/monitor proofing, |
Color translation, |
Other products and services |
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Designed between 1947 and 1977, the OSA UCS is a very uniform color
space which begs to be better known. With a full support for import,
export, and a dedicated tool to generate uniformly perceived color lists
in UCS coordinates, PatchTool opens this space's features to all. The
OSA UCS was always recognized to offer designers and artists beautiful,
novel, and harmonious color scales, and as an excellent reference for human
color perception studies; however, we have found that such scales can
also be used for color-management evaluation and testing. See the text
below for more information. Click
here for
What's new? in PatchTool 2.7. |
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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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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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PatchTool can
import
data from CxF Version-2 files (CxF2). The CxF2 data is completely
different from the Version-1 format, which it replaces. Until now, there
have been very few program capable of opening such files. With
PatchTool, you can convert the CxF2 content to a CGATS format or into a
file which is easily opened in a spreadsheet; of course, you can also
manipulate this data with
PatchTool's other
tools. |
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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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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 get from PatchTool. Please download Application Note #4 (AN-4) on the Tutorials page for instructions on on how to get similar data.
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PatchTool was tested by Miles Hecker (WyoFOTO) whose review was referred in The Luminous Landscape's "What's New" section. 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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