Snapshot
23
"
The image area set with the
ROI for Partial Readout
applies to the
following snapshot, should
Partial Readout
be enabled.
6)
Acquire a snapshot.
Either a partial readout or a clipping is possible all the time. A partial readout
is disabled if you enable a clipping on the
Format
tab located in the
Config-
ure Input
dialog box. The ROI which was set for the partial readout remains
intact. Clipping is disabled if you enable a partial readout while clipping is en-
abled. The settings for the clipping, however, remain intact. They will be
once again utilized as soon as you disable the partial readout.
Partial Readout
on/off
Click the
Partial Readout On/Off
button to activate the Partial Readout. In-
stead of the camera's entire CCD chip, only a rectangular area which was
defined with the
Set ROI for Partial Readout
function is read. Clipping will be
disabled should it have been enabled. A predefined ROI is used in the image
center, should you activate the partial readout before a ROI has been set for
this function.
Set ROI for Par-
tial Readout
Click the
Set ROI for Partial Readout
button to interactively set the rectan-
gular area of the image to be read out. Pull the ROI's red frame shown in the
image document to a position on the image which is to be read out. Change
the size of the area by keeping the mouse button depressed and moving the
pointer. Rightclick to confirm position and size of the ROI. The
Set ROI for
Partial Readout
command does not enable the partial readout; you still have
to click the
Partial Readout On/Off
button afterwards.
Snapshot
Use the
Image>Snapshot
command acquire a single images and to make it available for the image-anal-
ysis software.
You may also
You can also click the
Standard (button bar) > Snapshot
button.
Available
The command is not available if the active image buffer is write protected.
If the live mode was enabled with the
Image > Acquire
command, it will
automatically disabled with the
Snapshot
command.
Before acquiring an im-
age
You should first check the live mode if you are not certain if the object to be
acquired is positioned, focussed, or illuminated correctly. The illumination of
the object, the setting of the diaphragm, as well as the setting of brightness
and contrast are important for the quality of your images.
intelligent Exposure
Use the
intelligent Exposure
procedure to make acquisitions with little effort.
intelligent Exposure
largely makes the acquisition procedure automatic. The
exposure times for the live acquisition and the snapshot are automatically
set independent of one another so that the dynamic range of the camera are
fully taken advantage of. The optimization of the exposure time occurs con-
tinually and automatically.
Histogram-Analysis
intelligent Exposure analyzes the real time histogram during a live acquisi-
tion in order to optimize the exposure times.The automatic gain display and
the exposure time are set so that the signals use one of the dynamic ranges
set by the user.
