Turning Off Auto Redraw
The Auto Redraw function (in the Controls Area) redraws the image in response to image processing commands. You may want to turn off the auto redraw function to save processing time, if your image is very large and takes considerable time to be redrawn. To do this:
*Position the pointer on the Auto Redraw button and click MB1.
 
note
If the Auto Redraw button is deselected, you must manually select the Redraw button on the button bar whenever you want to see your brightness or contrast changes applied.
See Also