Renzo Shamey

Renzo Shamey

Ciba Professor of Textile Chemistry,

Polymer and Color Chemistry
Textile Engineering, Chemistry and Science

Wilson College Directory

About Renzo Shamey

After obtaining a Bachelor of Engineering in a 5 year program offering a mixture of engineering and chemistry courses in 1989, Prof. Shamey worked in textile mills (dyeing and finishing industry) for three years in various capacities from process engineer to section manager.

Prof. Shamey obtained a Master of Science degree in Dyeing and Finishing (with Distinction) jointly from the “Colour Chemistry Department” and “School of Textile Industries” of Leeds University in 1993 working on a colour science project under the direction of Dr. James. H. Nobbs at the Colour Chemistry Dept. of Leeds University.

He continued to work with Dr. Nobbs for four years during his PhD program between 1993 and 1997. His work was focused on modelling and real time control of dye concentration in a dyebath. After completing his PhD he worked as a post doctoral research associate at the Colour Chemistry Department of Leeds University on an industrial project sponsored by Unilever between 1997 and 1998.

Prof. Shamey joined Heriot-Watt University in Galashiels (Scotland) in 1998, as Lecturer (Assistant Professor) in Dyeing, Printing and Finishing where he established the Automation and Novel Coloration Research Group. He was nominated for a University wide Excellence in Teaching Award in 2002 and was specially commended.

In 2003, Prof. Shamey joined the TECS Dept. at NCSU and served as Polymer and Color Chemistry (PCC) program director since 2009 till 2018.

Prof. Shamey is the President Elect of Inter-Society Color Council (USA) and a Fellow of the Society of Dyers and Colourists and a Chartered Colourist (CCol) (UK). He is also an honorary professor at Tianjin Polytechnic University (China).

Prof. Shamey was elected the Academic Secretary of the United Kingdom National Postgraduate Committee (NPC) as well as the President of the Postgraduate Representative Council (PGRC) of Leeds University between 1995-1998. He was a State champion in free style Olympic wrestling for several years. He enjoys playing badminton and basketball in his spare time as well as traveling, learning new languages, and classical guitar.



Research Interests

  1. Colour Science and Technology

    Ten PhD and five Masters projects have been completed in these areas. Four PhD projects are currently underway on perception & modelling of texture, and characterization of color of complex patterns using digital cameras. Other projects involve assessment of color difference formulae and development of visual datasets.

  2. Computer Applications in Textile Wet Processing

    Several PhD projects have been completed in this field. The current work focuses on the development of expert systems to troubleshoot dyeing/printing problems. Other areas involve the examination of the effect of various parameters in real time on individual dyes in a dye admixture.

  3. Dye Application and Textile Chemistry
    • Dyeing of Polyolefins (Polypropylene, PE)
    • The Effect of Colorants on Ageing and Degradation of Fibers

    Five PhD projects have been completed in these fields. Works of interest include exploring novel techniques to dye polyolefins, as well as the study of photodegradation of fibers as a result of inclusion of dyes and compounds such as nano TiO2 in fiber.

Academic Degrees

  • Post-doctoral Research Associate , Leeds University, Unilever, UK., 1998
  • PhD, Thesis: The Computer Control of Continuous Addition Dyeing of Cotton With Reactive Dyes, Leeds University, UK, 1997
  • MSc, Dissertation: Computer Match Prediction For Screen Printed Semi-Opaque Panels, Leeds University, 1993
  • BSc (Eng.) Textile Fiber, Chemistry and Engineering, IUT, 1989


A novel image retrieval strategy based on transfer learning and hand-crafted features for wool fabric
Zhang, N., Shamey, R., Xiang, J., Pan, R., & Gao, W. (2022), EXPERT SYSTEMS WITH APPLICATIONS, 4.
Azurite blue in the Qing dynasty
Wang, R., Wang, M., & Shamey, R. (2021), COLOR RESEARCH AND APPLICATION, Vol. 1.
The effect of luminance on the perception of small color differences
Kulappurath, S. K., & Shamey, R. (2021), COLOR RESEARCH AND APPLICATION, Vol. 46, pp. 929–942.
Accurate colorimetric images using LEDs
Trussell, H. J., & Shamey, R. (2020), JOURNAL OF ELECTRONIC IMAGING, 29(4).
X-ray photoelectron spectroscopy study on the photodegradation of copolyester model compounds
Arangdad, K., Yildirim, E., Detwiler, A., Cleven, C. D., Burk, C., Shamey, R., … El-Shafei, A. (2020), JOURNAL OF APPLIED POLYMER SCIENCE.
Influence of UV stabilizers on the weathering of PETG and PCTT films
Arangdad, K., Yildirim, E., Detwiler, A., Cleven, C. D., Burk, C., Shamey, R., … El-Shafei, A. (2019), JOURNAL OF APPLIED POLYMER SCIENCE, Vol. 7, p. 48198.
Photodegradation of copolyester films: A mechanistic study
Arangdad, K., Detwiler, A., Cleven, C. D., Burk, C., Shamey, R., Pasquinelli, M. A., … El-Shafei, A. (2019), Journal of Applied Polymer Science, 136(10), 47148.
Pretreatment effects on pigment‐based textile inkjet printing – colour gamut and crockfastness properties
Ding, Y., Shamey, R., Chapman, L. P., & Freeman, H. S. (2019), Coloration Technology, 135(1), 77–86.
Unique hue stimulus selection using Munsell color chips under different chroma levels and illumination conditions
Determining the colorimetric attributes of multicolored materials based on a global correction and unsupervised image segmentation method
Li, Z., Xiong, N., Liu, J., Gao, W., & Shamey, R. (2018), Applied Optics, 57(26), 7482–7491.

View All Publications


Color Quality of Dyed Textiles as a Measure of Water Quality
Nike, Inc.(9/01/21 - 8/31/23)
Visual Evaluation of Textiles
Patagonia(5/10/21 - 9/10/21)
Digital Print Durability
Lubrizol Corporation(11/30/-1 - 12/31/17)
Characterization Of Lubrizol’s Pre-Treatment Interactions
Lubrizol Corporation(9/08/14 - 4/15/16)
Capping and Modeling Cationized Cotton
Cotton, Inc.(1/01/13 - 12/31/16)
A Digital Camera Based Method for Color Quality Control of the OCP Camouflage Fabrics
US Army(9/23/13 - 3/01/19)
Instrumental and Visual Color Assessment of Universal Camouflage Fabric -Phase II
US Army - Soldier Systems Center (Natick)(7/01/10 - 3/31/13)
The National Textile Center: Optimizing Color Control Throughout the Supply Chain (C04-NS11)
NCSU National Textile Center Program(4/01/08 - 3/31/09)
Development of Instrumental Color Measurement and Tolerancing of the US Army Universal Camouflage Fabric
US Army - Soldier Systems Center (Natick)(4/21/08 - 6/30/10)
The Development of Optical Reader, Technology and Image Processing Solutions to Identify Fiber Tagging Components
US Dept. of Commerce (DOC)(7/01/06 - 10/31/08)


  • Society of Dyers and Colourists, UK - Fellow
  • Inter-Society Color Council ISCC - President Elect
  • American Association of Textile Chemists & Colorists - Senior Member
  • Optical Society of America - Member
  • Society for Imaging Science and Technology - Member
  • Fiber Society - Member
  • Colour Group, UK; - Member
  • The Society for Modeling and Simulation International - Member
  • The International Institute of Informatics and Systemics - Member


  • PCC 101 - Introduction to Polymer and Color Chemistry ,
  • PCC 104 - Introduction to Polymer and Color Chemistry, Lab ,
  • PCC 301 - Technology of Dyeing and Finishing (PCC majors) ,
  • PCC 304 - Technology of Dyeing and Finishing , Lab ,
  • PCC 302 - Technology of Textile Wet Processing ,
  • PCC 302 - Technology of Textile Wet Processing, Lab ,
  • PCC 350 - Introduction to Color Science and Application ,
  • PCC 354 - Introduction to Color Science and Application, Lab ,
  • PCC 490 - Undergraduate Research Coordinator ,
  • PCC492 (PCC450) - Advanced Colorimetry and Color Appearance Models ,
  • TC 705 - Theory of Coloration ,
  • TC 706 - Color Science ,
  • TC 707 - Color Science Laboratory ,

Additional Information

Current Students

  1. Muhammad Zubair
    2019, PhD, Chair, Shamey
    Development of a diagnostic expert system for the coloration of blend fibers
  2. Nian Xiong
    2019, PhD,Chair: Shamey
    Quality Control of Multicolored Objects Using Imaging Systems
  3. Zhenhua Luo
    2022, PhD, Chair:Shamey
    Modelling Texture
  4. Jiaying Wu
    2022, PhD, Chair, Shamey
    Imaging Multicolored Objects
  5. Kazi Islam
    2022, PhD, Chair, Shamey
    Development of a diagnostic expert system for the coloration of polyamide and polyolefin fibers
  6. Jiajun Liu
    2019, PhD, Chairs, Chapman- Shamey
    Inkjet Printing of Textiles

Postdocs, and Visiting Scholars

  1. Dr. Yu Lin, Postdoctoral Associate, 2014- Present
  2. Ms. Ge Zhang, Visiting Scholar, Jiangnan University, China, 2017- 2018
  3. Ms. Meiqin Wu, Visiting Scholar, Donghua University, China 2016-2018
  4. Mr. Zhongjian Li, Visiting Scholar, Jiangnan University, China, 2016- 2017
  5. Mr. Chen Zhe, Visiting Scholar, Jiangnan University, China, 2016- 2017
  6. Dr. Lin Luo, Postdoctoral Assistant, 2015-2016
  7. Dr. Juan Lin, Postdoctoral Assistant, 2013-2014
  8. Ms. Shaungyan Wu, Visiting Scholar, Jiangnan University, China, 2015
  9. Ms. Jiajun Liu, Visiting Scholar, Wuhan Textile University, China, 2015
  10. Dr. Eunjou Yi, Visiting Scholar, Jeju National University, Korea, 2012-2013.
  11. Dr. Yuzheng Lu, Visiting Scholar, Jiangnan University, China, 2012-2013.
  12. Dr. Khaled El-Tahlawy, Research Associate, 2006-2008
  13. Dr. Maqbool Hussain, Visiting Scholar, Pakistan, 2008- 2010
  14. Ms. Merce Alsina Costabella, Visiting Scholar, Spain, Jan 2008- 2008
  15. Dr. Senthilkmar Muthusamy, Visiting Scholar, India, 2006- 2007
  16. Mr. Mahmud Elgammal, Visiting Scholar, National Research Center, Egypt, 2008

Undergraduate Research Projects

  1. Haley Lindell
    2017, The effect of LEDs on light fastness of conventional and cationic cotton dyed with reactive dyes
  2. Emily Rundell
    2017, Assessment of the degree of blackness of commercial colorants
  3. Kaylin Sutton
    2017, The effect of fabric color on perceived facial attractiveness of Caucasian and Chinese
  4. Anne MacLean
    2014, Threshold determination of “simultaneous contrast” and “spreading”
  5. Haley Barkely
    2013, Development of a perceptually geometric gray scale on polyester woven substrate
  6. Chris Ohnstad
    2013, Effect of certain chemical and mechanical treatments on colorimetric attributes of polyester substrate dyed with disperse dyes
  7. Sarah Shepherd
    2011, Brunescence and Its Influence on Assessment of Small Color Differences.
  8. Troy Tomassino
    2011, Development of a Sample Set around a CIE High Chroma Blue Color Center
  9. Sarah Jane Simpson
    2011, Development of a ‘gray’ hue circle.
  10. Adam Stegall
    2010, Development of a fabric based gray scale for assessment of color change
  11. Michael Sedito
    2007, Determination of unique hue based on Munsell chips
  12. Hal Walrod
    2007, Establishing a translucency index for textiles using translucent compression garments
  13. Kevin Bullock
    2006, Determining the Effect of Relative Humidity, Fabric Structure, and Finishing on Colorimetric Properties of Direct Dyed Cotton Fabrics
  14. Karmen Cressman Miller
    2005, Assessment of large color differences using DigiEye and Datacolor spectrophotometers

Former Graduate Students 

  1. Sonali Mandal
    NCSU Postdoc, 2017, PhD, Chairs: Hauser-Shamey
    Colorimetric characteristics of cationized cotton dyed with anionic colorants
  2. Sajeesh Kulappurath
    Subject matter expert, color, Apple, 2017, PhD, Chair, Shamey
    Assessment of Texture
  3. Heekwang Koo
    2018, MS, Chair, Shamey
    Dermatological Application of Colorants
  4. Daniel Hines
    2018, MS, Chair, Shamey
    Assessing the role of glare in colorimetric use of cameras
  5. Renbo Cao
    Camera Algorithm Engineer, Apple, USA, 2015, Chair: Shamey
    Development of an instrumental technique for quality control of complex colored patterns.
  6. Weethima Sawatwarakul
    Johnston Printing, Thailand, 2014, Chair: Shamey
    Development of a diagnostic expert system for coloration of protein fibers.
  7. Juan Lin
    Reiko, USA, 2013, PhD, Chair: Shamey
    Factors Affecting the Perception and Measurement of Optically Brightened White Textiles.
  8. Berdan Kalav
    Lecturer, Istanbul Technical University, 2012, PhD, Chairs: Shamey- Dayioglu
    Development of a diagnostic expert system for inkjet printing of cotton substrates.
  9. Gang Fang
    Qualcom, USA, 2012, PhD, Co-Chairs: Shamey-Hinks
    Development of Instrumental Techniques for Color Assessment of Camouflage Patterns.
  10. J. Reid Clonts
    2011, PhD, Co-Chairs: Shamey-Hinks
    Perception of Blackness and the Formulation of a Blackness Index
  11. Mehmet Ozturk
    Research Associate, Cornell University, 2011, PhD at Istanbul Technical University, Co-Chairs: Shamey-Dayioglu
    Optimization & Study of Exhaustion Profiles in the Dyeing of Cotton.
  12. Changhai Xu
    Professor, Jiangnan University, Wuxi, China, 2009, PhD, Co-Chairs: Hinks-Shamey
    The Chemistry and Perception of Fluorescent White Textile Materials
  13. Woo Sub Shim
    Research scientist, Korea, 2009, PhD, Co-Chairs: Shamey-Joines
    Development of a Diagnostic Expert System for the Dyeing of PolyesterSubstrates
  14. Lina Maria Cardenas
    Assistant Professor, Chile, 2009, PhD, Co-Chairs: Shamey-Hinks,
    Evaluation of Variability in Visual Assessment of Small Color Differences
  15. Kamran Iqbal
    Textile Research & Innovation Center, Pakistan, 2008, MS, Chair: Shamey
    Development of a visual dataset around a CIE high chroma blue color center.
  16. Seung Geol Lee
    Assistant Professor, Korea, 2007, MS, Co-Chairs: Shamey-Jasper
    Assessment of Metrics in Color Spaces
  17. Reduwan Bilal Shah
    Postdoctoral Research Fellow, UK, 2007, PhD, Co-Chairs: Christie-Shamey
    The Molecular Design, Synthesis and Application of Photochromic Dyes on Protein Substrates
  18. Mukesh Kumar Sinha
    Assistant Director, defense research labs, India, 2006, PhD, Co-Chairs: Shamey-Christie
    An Investigation of the Photodegradation of a Nylon Support Net used in Exhibition of Historic Textiles
  19. Mr. Mohammad K. Basher
    Sales manager, Canada, 2005, MPhil, Co-Chairs: Wardman-Shamey
    An Investigation on the Characteristics and Role of Surface Deposits Formed on the Wool Fiber During the Dyeing Process with Metal-Complex Dyes and Minimising Their Formation.
  20. Syed Iqbal Ahmed
    Process Engineer, UK, 2005, PhD, Co-Chairs: Shamey-Mather
    Coloration of Polypropylene: Prospects and Challenges
  21. Xiaoming Zhao
    Professor, Tianjin Polytechnic University, China, 2004, PhD, Co-chairs: Shamey-Wardman
    Modelling of the Mass Transfer and Fluid Flow in Package Dyeing Machines
  22. Tanveer Hussain
    Dean of Engineering, Pakistan, 2004, PhD, Co-Chairs: Shamey-Wardman
    A Knowledge Based Expert System for the Dyeing of Cotton.