Abstract
It has been well known that the conventional instruments, such as a spectrophotometer or a color difference meter can not be applied to the color measurement of dyed fabrics which have very small or complex dyeing patterns.
Hence, we applied the image analysis (I. A.) system to the color measurement and studied a novel technique for the instrumental assessment of the color fastness of dyed fabrics.
An excellent linear relationship exists between digitalized light intensities of the images of standard gray scales measured with the I. A. system and spectral reflection factors of the gray scales measured with spectrophotometer.
CIE-XYZ trichromatic values and CIE-LAB color differences of the sample dyeings could be obtained with fair to good accuracy with the I. A. system using three optical glass filters which are designed to set in front of a monochromatic video camera so that the curve of the spectral sensitivity of the total system is similar to that of the tristimulus values of CIE standard observer.
It can be concluded that the I. A. system is useful for the color measurement and can be developed as the novel system for the instrumental assessment of the color fastness of dyed fabrics, especially which have very small or complex dyeing patterns.
