'Smoothing of color data' Dialog
You can call up this dialog with the "Test chart > Correct - Smoothing" menu.
Check and smooth color data
You can enable or disable two subfunctions for smoothing the color data depending on the case at hand:
•plausibility check of the data and
•intelligent, global smoothing.
These two functions can be used separately or as a combination and be applied to the color data of both CMYK and RGB printing processes.
You can basically distinguish between two types of distortion of the color data: on the one hand, those that have a local effect (i.e. at a certain area in the color space) and those whose effect is global and across the entire color space.
Note: You can also use these functions in the "Create" main function in "Profile Generation Setup" (see 'Smoothing of color data' Dialog).
The difference is that, in this case, the color data are changed irrevocably by the correction whereas, in "Create", the correction is only applied to profile calculation and the original color data are retained.
When calculating profiles from smoothened color data, remember that an appropriate setting for the profile causes the smoothened data to be smoothened once again.
You can find more details about this subject in the Example of correction or smoothing of measured data ("Create" main function). An example is used to explain the effect of smoothing on the data.
Enable the correction/smoothing function you want.
Click "OK" to confirm your changes and close the dialog.
Click "Cancel" to close the dialog and discard any changes to it.
Automatic plausibility check of color data
This function lets you adjust implausible values which were detected during the analysis. Such values can result from errors during the measuring process but also from dirt or scratches on the test chart. Such local distortions of the color data are corrected automatically.
Intelligent smoothing of color data
You can use this function to eliminate distortions that have a global effect. In this process, empirical models for typical printing processes are used with all the measuring points to eliminate large-scale distortions. This result of the calculation is that the current measured data are smoothened without changing the accuracy greatly.
This method also works with unusual process colors and with printing materials with color cast.