Manually changing image brightness and contrastTopic number: 1425412817178
You can change image brightness and contrast by using the Window level tool.
To manually change image brightness and contrast
- In the Image area top toolbar, click Window
level.
The window level icon appears beside the pointer to indicate that window level mode is active.
- Adjust the brightness and contrast by the following methods.
To Action Change the brightness (window center value). Drag the pointer up or down over the image. Change the contrast (window width value). Drag the pointer left or right over the image. Fine-tune window level values. Hold down Ctrl while you drag the pointer over the image. This slows the speed of brightness and contrast adjustment to allow for precise control.
- To disable window level mode, right-click.