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Asim Kumar Roy Choudhury

Principal, KPS Institute of Polytechnic, Belmuri Retired Professor (Dr.) A. K. Roy Choudhury, Govt. College of Engineering and Textile Technology, Serampore - 712201, Hooghly (W.B.), India -- Dr Asim Kumar Roy Choudhury is presently working as principal, KPS Institute of Polytechnic, Belmuri. He retired as Professor and HOD (Textile) from the Government College of Engineering and Textile Technology, Serampore (W.B.), India. He has over 35 years’ experience in textile colouration and finishing in academia and industry, and has written numerous papers in International and national journals. He has written 25 books published by reputed publishers namely Woodhead, Elsevier, CRC Press, Springer, Apple Academic Press etc. He has authored several books on dyeing, finishing, colour measurement. His future projects are Principles of Textile Printing and Flame Retardant Textiles.

Basic concepts of colour measurement

People involved with colour and colour reproduction needed a unique and unambiguous specification of colour, leading to colours being expressed in numeric codes, which is explained in detail in this article like the perception of colours, the representation of colours, and other interesting semantics of it.