Imaging Colour Measurement System (ICM) based on Multi-spectral Technique

The 3rd generation ICM system provides a total solution for the textile and apparel industry when meeting rigorous standards of colour measurement, colour management, colour communication and quality control. The system can measure multi-coloured fabric samples with different sizes and regular or irregular shapes, and different textures ranging from yarn-dyed sample, laces, lingerie, accessories, to printing fabric.

It consists of an illumination and imaging system, providing a non-contact colour measurement based on multispectral imaging technology. It can perform a high definition, consistent and reliable colour measurement to satisfy the increasingly diverse applications of the textiles and apparel industry as well as other industries with colour applications.

The ICM system is mainly used for colour measurement and quality control of multi-coloured and irregular fabric products in the textile and apparel industry. With improvement and upgrading of the existing system, its usage of colour quality control can also be extended to industries of plastic, home textiles, food, cosmetics and electronic products industries.

  • Non-contact colour measurement: use multispectral imaging technique to capture high spatial and spectral resolution images.
  • Measure full visible/UV spectral illumination for printing fabrics and yarn-dyed fabrics with gradational colours and complex patterns.
  • Unique features: enable colour measurements of multi-coloured fabrics and samples of accessories in different sizes and irregular shapes.
  • Colour measurement and quality assessment of yarn and fabric sample mixed with fluorescent whitening agents(FWA).
  • High definition accuracy: calibration performed with standards traceable to the U.S. National Institute of Standards and Technology (NIST) which provides a reliable and consistent spectral reflectance measurement.
  • High fidelity visualisation: able to solve the problem of metamerism under different illuminant conditions.
  • Intelligence: extract the dominant colours from the measured fabric samples automatically to conduct colour formulation.
  • Shortened product development cycle: speed up the development of new fabric and different colour products by measuring and changing colours on the calibrated display terminals, and speed up the development of new fabric and different colour products.
  • Less time and cost spent on colour communication: transmit multispectral images via internet or intranet to eliminate deliveries of physical samples.

By means of the special optic design, the visible spectrum of the ICM system can be split into more than three narrow bands and a fabric sample captured by a set of monochrome images under a controlled and uniform illumination system. Compared with the conventional trichromatic imaging technology, this system can output a series of high definition image data and give a better performance. It can overcome the problem of the metamerism and offers a more rigorous and accurate colour measurement and quality control.

The ICM system provides a total solution on colour management for the textiles and apparel industry

The ICM system can be applied to colour measurement and quality control of multi-coloured and irregular fabric products

Project coordinator: Prof John H XIN
Research institution: The Hong Kong Polytechnic University
Enquiry: The Hong Kong Research Institute of Textiles and Apparel
Email: / Website:

© COPYRIGHT 2016 The Hong Kong Research Institute of Textiles and Apparel. ALL RIGHTS RESERVED