An inverse display color characterization model based on an optimized geometrical structure
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OriginalversjonThomas, J.-B., Colantoni, P., Hardeberg, J. Y., Foucherot, I., & Gouton, P. (2008). An inverse display color characterization model based on an optimized geometrical structure. In R. Eschbach, G. G. Marcu & S. Tominaga (Eds.), Color Imaging XIII: Processing, Hardcopy, and Applications (Vol. 6807, pp. 68070A-68070A). Bellingham, Washington: SPIE - International Society for Optical Engineering. http://dx.doi.org/10.1117/12.766487
We have defined an inverse model for colorimetric characterization of additive displays. It is based on an optimized three-dimensional tetrahedral structure. In order to minimize the number of measurements, the structure is defined using a forward characterization model. Defining a regular grid in the device-dependent destination color space leads to heterogeneous interpolation errors in the device-independent source color space. The parameters of the function used to define the grid are optimized using a globalized Nelder-Mead simplex downhill algorithm. Several cost functions are tested on several devices. We have performed experiments with a forward model which assumes variation in chromaticities (PLVC), based on one-dimensional interpolations for each primary ramp along X, Y and Z (3×3×1¿D). Results on 4 devices (2 LCD and a DLP projection devices, one LCD monitor) are shown and discussed.
This is the copy of journal's version originally published in Proc. SPIE 6807. Reprinted with permission of SPIE: http://spie.org/x10.xml?WT.svl=tn7