VWR avantor CHEMI Instruction Manual page 36

IMAGE SLIDER CONTROLS
The following controls are available to adjust the way a captured image looks.
Digital Zoom slider
Image Inversion button
The Digital Zoom slider allows you to zoom in or out of the displayed image. Dragging the slider towards
the + sign zooms in, dragging the slider towards the - sign zooms out.
The Gamma slider changes the tone of the overall image. With reference to the histogram mentioned
previously, the Gamma function changes the relative brightness of the recorded midrange tones by shifting
them either towards the dark end or the white end of the graph, 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 Reset icon.
Use the Image Inversion 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 Image Inversion button a second
time changes the image back to normal.
CAPTURED IMAGE INFORMATION
Select the Image Information icon
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.
35 vwr.com Instruction manual
Reset button
IMAGE SLIDER CONTROLS
. This displays a pop-up window displaying captured image
IMAGE INFORMATION POP-UP WINDOW
®
VWR
Gamma slider
Contrast / Brightness
sliders