Working with the preprocessing pane

Tip:The preprocessing pane is not shown in the default layout. Use the Window menu to show it.

The preprocessing pane is rarely used, and exists only to allow fine tuning of the underlying algorithm used to detect colours. This is a stochastic algorithm, meaning that it may produce slightly different results each time, although generally this will not be noticeable to the naked eye. You may occasionally, however, see slightly different colours selected, even for the same photo and same settings.

Care should be taken when adjusting the first two of these settings in particular, as large values may make the program unresponsive.