Measurement correction

GMG OpenColor offers an automatic correction for your measurement data. This correction averages duplicates, removes outliers, and smooths the measurement data spectrally. 

How to automatically correct measurement data

1. Open the Measurement Data dialog box
2. The dialog box lists all measurement data sets in a table. If you imported multiple matching data sets, the data is marked as Combined Measurement File.
3. Start the measurement correction
4. If the measurement data contains deviations in the highlight areas that are attributable to the printing process and you do not want to smooth them, you can enter a percentage in the field Preserve single colors below (index %), which will protect the highlight area. Measurements below this limit will not be smoothed.

Measurement evaluation

The measurement data dialog box provides some tools to evaluate the applied auto correction.

1. Average dE / Max dE: The deviation to the original measurement data gives you an indication of the data quality and how much impact the correction has on the data.
2. Statistics: For further analysis, you can open a table (see below) showing L*a*b* values for all measurement values before and after the correction.
3. Undo: You can revert the measurement data to the original state.
4. Export: It is possible to save the original measurement data you imported into GMG OpenColor for further use in other applications. This is especially helpful if you have no access to the original data you imported or measured into GMG OpenColor.
   
   

Overview of delta-E values in the statistics

• The values in the table can be sorted, e.g by dE
• You can define a threshold. Values which are higher, will be marked in red.
• You can export the values for further evaluation.