Evaluating colorimetric repeatability of continuous ink jet images

John L. Ingraham

doi:10.1117/12.2322232

1 May 1992 Evaluating colorimetric repeatability of continuous ink jet images

John L. Ingraham

Proceedings Volume 1670, Color Hard Copy and Graphic Arts; (1992) https://doi.org/10.1117/12.2322232
Event: SPIE/IS&T 1992 Symposium on Electronic Imaging: Science and Technology, 1992, San Jose, CA, United States

Abstract

Determining the color repeatability of images from color output devices is paramount for color-critical applications. Color should be described in coloriinetric values which are then used to make a probability statement about printed color repeatability. Experiments are described that determine color repeatability for a four color continuous ink jet printer using colorimetric methods and probability ellipses. CIELab measurements were taken from several ink jet prints which contained a standard test image. The test image consisted of an array of color patches with different colorant amounts. Two-dimensional ellipses, representing the 95% a*,b* confidence interval, were then computed for each color patch to establish color repeatability. Typical results showed that ellipse axes were not parallel to the a*,b* axes, suggesting that simple a*,b* tolerances would lead to an inaccurate repeatability statement.

Citation Download Citation

John L. Ingraham "Evaluating colorimetric repeatability of continuous ink jet images", Proc. SPIE 1670, Color Hard Copy and Graphic Arts, (1 May 1992); https://doi.org/10.1117/12.2322232

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