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RadiAnt DICOM Viewer

Navigation: Advanced Topics > 3D Multiplanar reconstruction (MPR)

Changing brightness / contrast

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Click the  Adjust image window  button on the toolbar (or press the  W  key).




Next, press the left mouse button over the image and drag the mouse to change brightness (window level - WL) or contrast (window width - WW):


Up to decrease brightness (window level goes up)

Down to increase brightness (window level goes down)


Left to increase contrast (window width shrinks)

Right to decrease contrast (window width expands)






By default, the windowing tool is associated with the middle mouse button.

Press the  Ctrl  key and drag the mouse with the left button down and the windowing tool will be active, regardless of the current association.


On multi-touch devices, touch the image with three fingers and drag them in the directions described above to adjust the window level and width.


Press  0  to set the default window for the loaded series.


Negative mode


Press the  F11  key or click the  Negative  menu item to toggle the negative mode for the image.









Window settings are synchronized in all viewports by default.

To toggle the synchronization, click the  Synchronize window settings  menu item.





Custom window


Press the  Ctrl + F11  keys or click on the  Custom window  menu item to precisely adjust the WW/WL settings.




You can learn more about the custom window setting in the 2D viewer section.