  Along with the development of science and technology, the application of
various computational processes in the field of science engineering is
something that is being developed, even today. Currently, many studies have
applied image analysis technology to the field of textile evaluation and
identification, one of which is yarn. Computer image analysis techniques can be
used to identify textile products, especially textile products in the form of
yarn. This chapter has reviewed various methods and application of image
processing technology in the field of identification and evaluation of various
thread parameters, together with a brief review of historical developments, as
well as the need for the application of these methods.
  Keywords: yarn, digital image processing, evaluation and identification,
textiles.
