Results

            The colorimetric evaluation showed that RegalRez varnish did in fact improve color saturation.  The following graph is a vector plot of the beginning and ending a* and b* for each color patch, comparing the unvarnished color target with the varnished color target.

IDL TIFF file

The arrows radiate out from the center and there is almost an equal change in both a* and b*, which is analogous to an increase in chroma.

The spatial response analysis did not show a significant difference between the PVA or Regalrez..  The target used with the Regalrez had a CMT of 29.7 unvarnished and a CMT of 27.8 varnished. The target used with the PVA had a CMT of 29.7 unvarnished and a CMT of 28.2 varnished. These values show no significant difference between the varnishes and also show that the varnish actually decreased the spatial response.

IDL TIFF file

sample SFR target


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