Canon PIXMA MG2440 - Manual (Page 284)

(3) Operation Buttons
Noise Reduction
Reduces noise (tonal variation that may appear in images taken in dark locations such
as night scenes using a digital camera).
Enhance Resolution
Reduces jaggies (roughness in images).
Undo
Restores the original uncorrected state.
Close
Switches to the Video Frame Capture view.
(Previous Image/Next Image)
Switches the preview display when there are multiple images in the Selected Images
area.
(4) Display Size Setting Bar
(Display Correction Screen)
Switches to the preview (correction screen).
(Display Comparison Screen)
Displays the images before and after the correction side by side in preview so that you
can compare them.
284