作者: Robert P. Loce , Gaurav Sharma , Steven J. Harrington , Yeqing (Juliet) Zhang
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摘要: A novel spectral imaging technique is presented that allows multiple grayscale images to be combined in a single hardcopy print. The are individually revealed when the print illuminated by suitably chosen illuminants. In its basic form, utilizes complementary relation between cyan, magenta, and yellow colorants narrow-band red, green, blue illumination combine extract images. Colorant interactions compensated through simple calibration process. addition, we present techniques demonstrating how gray component replacement (GCR) may defined for illuminant multiplexed it successfully exploited allow embedding of additional patterns under uncontrolled illumination. paper accompanied light-booth based demonstration effects described herein.