色彩画像入力装置の色変換特性について

概要

論文の詳細を見る
For studies of color picture information processing, the authors install a color picture inputting device which is reported already, with the Ube Tech. Coll. Picture Information Processing System, U-P.I.P. S.. In this device, chromaticity coordinates of the three fundamental colors are selected peculiarly. In the paper the authors discuss the appropriateness of the chromaticity coordinates and derive a method for converting to the C.I.E. standard colorimetric system. This conversion formula requires those characteristics that spectral radiations of light source, spectral transmittance of color separation optical filter system and spectral sensitivity of photo multiplier tube. Next, device outputs are measured with 638 samples picked from J.I.S. standard color chart. By the least mean square error method, the photo-electric conversion characters are formulated for the J. I. S. standard gray scale. And the chromaticity coordinates are plotted in the diagram. At the last for a application, a chromaticity diagram is constructed with a sample which colors are distributed simply in the whole. The same sample is measured through monochrome picture input device. Comparing both results it is confirmed that color informations are more effective in partitioning.
宇部工業高等専門学校の論文
1979-03-15