Graduate Research Papers


Open Access Graduate Research Paper


Process color photography has been continually developing for many years. In fact, color printing techniques are still benefiting, through additional sophisticated requirements, and from a discovery made about 300 years ago. At that time Sir Isaac Newton, British scientist, mathematician • and philosopher, placed a glass prism in the path of a narrow beam of sunlight entering his room through a pinhole in an opaque window shade. He determined that ordinary white light is a mixture of colored lights.

Unfortunately, in practice, ideal pigments for three-color inks do not exist and this impasse greatly complicates the job for the photo-processor. To improve the accuracy and speed of color reproduction, one of the newest methods of color correction being employed today is the electronic scanner. Electronic color scanning is accepted today as a rapid method of producing very high quality color separations.

This research paper attempts to uncover some of the "mystery" associated with these electronic marvels in a systematic presentation. Conventional techniques in color separation theory are described first, . including types of copy and color dimensions involved in separation work. With a practical understanding of traditional (conventional) color separation techniques clearly defined, the reader is introduced to early attempts at developing working scanners, some popular present day scanners and finally an outlook into the future growth and potential use of color scanners in the graphic communications industry throughout the world.

Year of Submission


Degree Name

Master of Arts


Department of Industrial Arts and Technology


The copyrighted works referenced in this graduate research paper, Cromagraph DC 300 User Manual, Colour Scanning and Reproduction by Crosfield Graphic Equipment, Electronic Screening with Laser Beam on the Chromograph DC 300, and Single Magazine (Jan 1974), are currently not being made available in electronic format through UNI ScholarWorks.

If you are the rightful copyright holder of this dissertation or thesis and wish to have it removed from the Open Access Collection, please submit a request to and include clear identification of the work, preferably with URL.

Date Original


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1 PDF file (viii, 59 pages)



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