GMG has extended the functionality of its GMG OpenColor profiling solution with measurement data optimisation based on spectral calculation.

The company says this makes creating profiles for packaging printing simpler and more reliable.

GMG OpenColor creates colour accurate proofing and separation profiles based on characterisation of the planned print production. The user measures test charts or colour patches in order to obtain data needed for characterisation. It combines this data with other parameters from the printing process to create a dynamic profile. It has to optimise the data obtained from the calibration process. GMG says that erroneous test charts, poor substrate textures, and dust can all cause an excessive degree of distortion. Deviations can also arise from the measuring device itself.

Previously, users of GMG OpenColor relied on third-party software for optimising the measurement data or had to subsequently correct profiles themselves in a manual process. Now, using Version 2.2, users can create a colour accurate profile in a few steps.

Peter Schöffler, product manager at GMG, says, “The optimisation is based directly on the measured spectral data, which is then processed via our spectral model. This ensures that the measurement data is preserved and not distorted by conversion into Lab. Ultimately, this leads to highly reliable profiles. Within the software, the user can configure and analyse the level of optimisation required.”

The new version also has CxF/X-4 support according ISO 17972-4.  Spectral values along with dot gain steps can be communicated to other parties involved in a print production.

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