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Technical Development

ScienceAsia 4 (1978): 178-187 |doi: 10.2306/scienceasia1513-1874.1978.04.178

 

COLORIMETRIC ANALYSIS AND EVALUATION OF FOUR-COLOR REPRODUCTION BY PHOTOMECHANICAL MEANS

 

SAKDA SIRIPANT

Summary: The analysis and evaluation of a color reproduction process, in which a color trans. parency was reproduced by offset lithography, is described. The object was to evaluate a variety of previously known methods of colorimetric and sensitometric analysis, and to compare the results with visual evaluations of the reproduction. The transparency included a picture of a color chart in addition to a portrait, so that it was possible to investigate the relationship of the reproduction to the original scene as well as to the transparency. Possible improvements of the color reproduction process are suggested and its main uses are discussed.

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Department of General Science, Faculty of Science, Chulalongkorn University, Bangkok, Thailand

Received 20 September 1978