Preview ViewportPreview Viewport

Click inside the Preview Viewport or press D to activate.

The left part of the Main Dialog provides the Preview Viewport, which shows you a real-time, interactive preview of your image and the results when you make changes to the settings. In short, this is the appearance of what will be written back to your image if you click [ OK ].

The Viewport Controls around the Preview Viewport allow you to control what you see in the Viewport. You can set the zoom and position of the viewed image and whether to see the flat alone, the original image alone, or the two in combination.

Zoom Buttons Zoom Buttons

Increase or decrease the magnification of the image displayed in the Preview Viewport by one step.

Zoom Control Zoom Control

Displays the current magnification of the image displayed in the Preview Viewport and lets you set a new magnification value. You may also set some additional display options using this control.

Choose how to display your image in the Viewport View Menu

Right click in the Preview Viewport and choose from the list of zoom values (and view options) presented.

Progress Bar Progress Bar

Indicates an update of the Preview Viewport is in progress. If the progress bar is showing activity, the Viewport has not yet been updated to reflect the latest control changes.

Scroll Bars Scroll Bars

Change what part of the image is showing in the Preview Viewport.

Mouse Wheel Mouse Wheel

A Mouse Wheel, along with modifier keys, can be used to zoom and scroll the image in the Preview Viewport.

Use Selection [  ] Use Selection Checkbox

This checkbox shows only if a selection has been made before running the plug-in. It allows you to include or exclude the deselected pixels.

Enhance Preview [  ] Enhance Preview Checkbox

This checkbox allows you to invoke an extreme levels stretching operation on the image so as to be able to more easily judge if the background levels are truly flat when adjusting the main controls.

Flat Only [  ] Flat Only Checkbox

Display the background illumination map ("flat") alone or combined with the original image in the Preview Viewport. This checkbox also determines whether the image saved back to your image editor will consist of your original image flattened, or just the flat alone.

Preview Checkbox [  ] Preview Checkbox

Display analysis/flattening results or just your original image in the Preview Viewport. Can be useful for "blinking" back and forth, to easily see what the plug-in is doing with your image.