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Summary:
This work provides a methodology used to perform a statistical analysis and evaluate the performance of the Nix Mini 2 color sensor device in terms of repeatability, reproducibility, and accuracy as compared to the standard device, X-Rite eXact. In this research, the values collected using the low-cost color sensors were compared to those from a standard device, X-Rite eXact. This work accepts the values collected by the X-Rite eXact as true and considers them to be accepted values for the given printed sample.
Initial analysis was performed by evaluating measurements collected from a number of printed samples and applying simple statistics to analyze ΔE* between the values obtained using the Nix Mini 2 devices and those recorded with the X-Rite eXact. As anticipated, the initial testing and data indicated statistically significant differences between the data collected using the Nix Mini 2 device and X-Rite eXact; however, due to the three-dimensional nature of color, these simple statistics do not illustrate the devices’ ability to correctly specify the color measured. This work aims to discuss the devices’ ability to measure and specify color when compared to a standardized device.