X6

Measuring instruments 175
Waveform monitor
The Waveform monitor displays the
brightness of the video
. The connection to
the position on the image remains intact.
• X Axis (horizontal)
The image position on the horizontal axis of
the video monitor.
• Y Axis (vertical)
The brightness of the video (increasing) at
the corresponding image position (X-Axis).
• Brightness
The brighter an area is displayed in the
waveform monitor, the more image points
there will be at this position (X-Axis) in the
respective brightness area (Y-Axis)
Image in connection with the
Waveform monitor
The dotted lines on the upper and lower borders of the waveform monitor correspond
to the values for digital 0 (black) and digital 255 (white).
The lines 0 and 100 on the left border correspond to the limit values for analog
transfer of video signals.
The intensity of the curve is determined in the measuring instrument settings (view
page 178).
Cases for using the waveform monitor
Locating areas in the image that are too dark or too light
Because the horizontal axis of the waveform monitor corresponds to the horizontal
axis of the image, a connection with the image can easily be made:
• Lighter sections in the upper third of the waveform monitor:
Very many image points in the upper brightness area.
• Lighter sections in the middle third of the waveform monitor:
Very many image points in the middle brightness area.
• Lighter sections in the lower third of the waveform monitor:
Very many image points in the lower brightness area.
1. Transfer the horizontal position of the too light or too dark areas to the visible
image in the video monitor.
2. Locate the corresponding points on this horizontal position in the image.