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Color Communication in a Digital World
Traci May-Plumlee
With thanks to David Hinks, Associate Professor, College of Textiles,
NCSU for his assistance with this article.
Perception of color is a complex phenomenon. The color
that we see when we look at an object is affected by the light source,
the object’s
surface qualities, and our own color perception abilities. In addition,
colors carry a variety of emotional and psychological connotations that
influence our perceptions. To complicate matters even further, our perception
of a single color can change depending on the other colors that surround
it. Consequently, color communication along the textile product supply
is an ongoing challenge. Digital measurement and electronic communication
of color information can greatly improve the efficiency of the supply chain
and the ability of industry firms to manage color successfully in a global
environment.
Much work has been done, and continues to be done, in the field of color
communication in the NCSU College of Textiles Color Science Laboratory
under the direction of David Hinks. Dr. Hinks, his research team and students
work closely with the AATCC Committee RA 36: Color Communication, Measurement
and Testing, as well as a number of suppliers of color measurement technology
for the industry, in developing new test methods and standards for working
with color. In both graduate and undergraduate color science courses students
pursue team based projects targeted at understanding the relationships
among visual color assessment techniques, digital color measurement and
color models. Results of these projects are often shared with industry
via conference presentations. For example, at the 2003 AATCC Conference
a NCSU textile chemistry major presented results of a study on the variability
of spectrophotometric measurements of color.
Research is also being conducted using DigiEye, a new digital imaging system
for assessing color. With the DigiEye system, visual color information
is captured with a digital camera and then converted to color space coordinates.
NCSU researchers are studying the potential of the system for measuring
staining, a textile colorfastness attribute typically assessed visually
in most of the industry.
Datacolor, an industry firm offering computerized systems for color measuring,
matching, quality control and communication has supported color related
research and education at NCSU. Datacolor donated a spectrophotometer,
software, and autodispersing equipment used by students and faculty in
the Color Science Laboratory, and also supports the Lab through the provision
of technical expertise.
Researchers from NCSU will be participating in ISO meetings in July in
Barcelona, Spain. At these meetings, they will be discussing the work on
color staining that has been completed using the DigiEye technology. In
addition, they will lead initial discussions on work initiated this year
under a new National Textile Center project. The scope of the project involves
improving color control in the supply chain using an approach that entails
determining how much variability in color is discernable to observers and
on understanding how that discrimination ability relates to digital color
measurement.
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