If this field is enabled, all localizations with a strength lower than its value are discarded and not displayed or stored in the suboutputs. The localization strength denotes the total signal detected in the PSF, i.e. the integral of the point spread function.

If this field is enabled, all localizations are shifted in space by an amount proportional to the time coordinate of their detection. This is used to implement linear drift correction.

If this field is checked, all localizations with a two-kernel improvement (quotient of residues with two kernels and residues with one kernel) greater than the given value are discarded. This value is used for artifact suppression and is only available when Compute two kernel improvement has been checked.

This option box determines the effect of the action. It can either take the value of Filter, in which case Expression to assign from must give a boolean result, or a variable name, in which case Expression to assign from must give a numerical result which matching dimensions. The possible variable names are formed by applying the modifiers from Table 2, “Variable name modifiers for expressions” to Table 1, “Variable base names for expressions”, with examples in Table 3, “Variable example names for expressions”.

This text field gives an arithmetic expression for the value of the action. An expression consists of variables explained in Value to assign to and constants, linked by the usual arithmetic operators. Constants are given as numbers with units, which can be m, ADC or fr for meters, camera A/D counts of frames, respectively, and be prefixed with the usual SI prefixes (with u for μ). The available operators are given in Table 4, “Operators in expressions”. Examples for complete actions are listed in Table 5, “Example actions”