There is one last tool that you can use to help understand the pixel intensity levels in
your captured images. In the image display window if you hold down the <option> key
while mousing around the image, the intensity of the pixel under the mouse will be dis-
played. An example of this is shown below. It is sometimes helpful to have the zoom
scale set pretty high when using this feature of the program.
Pixel intensity display attached to cursor.
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Starfish
Guide Camera
