In this step, you control the tradeoff between image quality and stitching speed.  In document stitching, this is Wizard step 3/7.

Positionnement automatique / Automatically fine tune — Automatically applies the Positionner / Fine tune command (Image / Image menu) while stitching the panorama.

When The Panorama Factory aligns adjacent images it finds the offset that minimizes the differences between the images in the overlap region. It is rarely possible to align the images perfectly. When the images are not perfectly aligned, some portions of the overlap region will show double images called ghosts. The Positionner / Fine tune command analyzes overlap region and makes local adjustments in an attempt to remove the ghosts.

Uniformiser l'exposition / Enable exposure matching — Selecting this checkbox causes The Panorama Factory to adjust the brightness of successive images to improve the agreement between the images. You should normally select this checkbox if your images were made with different exposure settings (e.g. your camera was set to automatically determine the exposure). You should normally reset this checkbox if your images were all made with the same exposure settings (e.g. you manually controlled the exposure yourself).

Corriger l'exposition / Enable exposure correction — Selecting this checkbox causes The Panorama Factory to adjust the overall brightness of the stitched image.  For 45-bit images, this sets the Niveaux des blancs / White level, Niveaux des noirs / Black level and Tons moyens / Midrange on the Outil couleur / Color tool to adjust the brightness.  For 24-bit images, this adjusts the pixel values themselves.

calculer l'image corrigée... / Make the corrected image...
<--- plus sombre / Darker    0    plus claire / Lighter --->

If you have enabled exposure correction, select one of the radio buttons to control the overall brightness.  The center radio button adjusts the overall brightness so that the median brightness value is at 50%.  Each radio button step above or below 0 increases or decreases the median brightness.

Don't worry too much about this setting.  If your final panorama image is too light or dark, you can change the setting later by using the Propriétés de la fusion / Blending properties dialog box.

Accentuer l'image finale / Sharpen the final image — Selecting this checkbox causes The Panorama Factory to apply the Accentuer / Sharpen command (Nouvelle image / New image menu) to the final image.

Quantité / Amount (percent)
         Determines the amount of sharpening.

The amount of sharpening you need may depend upon how much sharpening was done by your digital cameras.  Some cameras produce sharper pictures and some produce softer pictures.  Remember that you can change the amount of sharpening after exiting the Wizard.  If you want to change the amount later, select the sharpened image and use the Montrer les sources / Show source command (Image / Image menu) to display the Accentuer l'image / Sharpen image dialog box.

After making your image quality choices, press the Suiv. / Next> button to advance to the next step of the Wizard.