VWR Gel Documentation Imager2 Instruction Manual page 93

without changing the extreme dark or extreme white values. This gives the recorded image an
overall darker or lighter appearance.
Contrast is a measure of how bright highlights are in an image. Brightness is a measure of how
bright shadows are in an image. Use the Contrast slider to control how bright the lightest
objects in an image are displayed. Use the Brightness slider to control how bright dark objects
in an image are displayed.
If you make changes using the sliders you can undo the changes by selecting the Auto Levels
icon.
Use the Invert button to invert the image, i.e. white appears black, black appears white. This
can help when making changes with the slider controls. Selecting the Invert button a second
time changes the image back to how it was originally.
CAPTURED IMAGE INFORMATION
Select the Image Information icon
image information. The information displayed is as follows:

Dye

Image capture date / time

Filter

Light

Exposure time

Iris f number

Image size

Range (range of grey scales captured)
The Image Information icon turns red. Selecting the Image Information icon a second time
closes the pop-up window.
IMAGE HISTOGRAM
Select the Histogram button
distribution of grey scales recorded by the camera sensor; with black to the extreme left, white
to the extreme right.
The Histogram button turns red to indicate that the function has been selected. Selecting the
button again cancels the Histogram function.
93 vwr.com Instruction VWR
. This displays a pop-up window displaying captured
IMAGE INFORMATION POP-UP WINDOW
. This displays a histogram or graphical representation of the
HISTOGRAM DISPLAY
®
Imager2