カラービデオ画像によるCIE表色系三刺激値XYZの測定 : ビデオ測色法の開発

概要

論文の詳細を見る
A new colorimetry technique by color video images is developed and named "Video Colorimetry". A digital camera is colorimetrically calibrated using a colorimeter, a xenon lamp, and color samples. The calibration describes the device dependent characteristics of the camera as a series of regression functions. In the actual measurement, the calibration functions transfer the video signal values RGB on a digital color image into the absolute values of the CIE 1931 tristimulus values XYZ pixel by pixel. The XYZ values of each pixel are transferred into the absolute values of color coordinates xy. For light sources, correlated color temperature is also calculated. The accuracy of the video colorimetry is validated by comparison with the colorimeter.
社団法人日本建築学会の論文
2001-05-30