Use the Window Level tool to change image brightness and contrast by adjusting window center and window width values.
 | Note: If an MG image contains padded pixels (or pixel padding range) as per the DICOM specification, the background remains black when window leveling or inverting images. |
To change the window level
From the Image area top toolbar, Window Level button menu, select Window Level.
Window Level may be the default tool, in which case you may not have to activate it.
If required, change the scope of window leveling to image, series, or study.
Otherwise, the default scope for window leveling is used.
Click an image to adjust.
The pointer may jump to a different location on-screen.
Adjust the brightness and contrast by the following methods.
To change the brightness (window center values), move the mouse up or down.
To change the contrast (window width values), move the mouse side to side.
To ensure that only brightness values change, press Ctrl and move the mouse up or down.
To ensure that only contrast values change, press Ctrl and move the mouse side to side.
To fine-tune the window level values, click the scroll wheel.
To set the window level, click at the position where the brightness and contrast are as you want them.
or
To cancel the window level change, right-click.
The pointer jumps back to the previous location on-screen.