This dialog box controls the 3x3 or 5x5 FIR (Finite Impulse Response) filter coefficients used by the Perfeziona / Enhance command (Nuova immagine / New image menu). As you change the filter coefficients, The Panorama Factory shows you the effect interactively within the preview rectangle.

Filtro kernel / Filter kernel
The 3x3 or 5x5 convolution kernel coefficients.

Tipo filtro / Filter type

3x3           3x3 FIR filter.

5x5           5x5 FIR filter.

Contrasto / Sharpen                   3x3 sharpening filter. This filter is generated automatically from its center coefficient. You can also use the slider to control the center value.

Filtro contrasto / Filter shape

Simmetria orizzontale / Horizontally symmetric

Simmetria verticale / Vertically symmetric

Simmetria circolare / Circularly symmetric
Constrains the filter to have the specified symmetry.

Separabile / Separable
Constrains the filter be separable. A separable filter can be applied in separate horizontal and vertical passes. This has the potential of improving filtering speed (although The Panorama Factory currently does not take advantage of this).

Normalizza / Normalize
Normalizes the filter coefficients so that the filter neither brightens nor darkens the image (on average). Selecting this option causes The Panorama Factory to divide each filter coefficient by the sum of all coefficients when the filter is applied.

Carica impostazioni da un profilo: / Load settings from profile:
Select a profile from this dropdown list to load all settings that apply to the current tool dialog box.

Salva impostazioni in un profilo... / Save settings to a profile...
Select this button to activate the Salva impostazioni in un profilo / Save settings to a profile dialog box.   You can save the current settings to an existing profile or create a new profile to hold the settings.

To learn more, see the Organizza profili / Profile organizer dialog box and the Salva impostazioni in un profilo / Save settings to a profile dialog box in Chapter 13, “Dialog boxes.”