Operation and Features
3-52 BASLER L304kc
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3.11 Test Images
The test image mode is used to check the camera’s basic functionality and its ability to transmit
an image via the video data cable. Test images are especially useful for service purposes and for
failure diagnostics. In test mode, the image is generated with a software program and the cam-
era’s digital devices and does not use the optics, the CCD sensor or the ADCs. Ten test images
are available.
3.11.1 Guidelines When Using Test Images
When using a test image, take the following guidelines into account:
• If the camera is set for an exposure mode that uses an ExSync signal, the ExSync signal
must be present and must toggle in order to output a line on the test image. Multiple transi-
tions of the ExSync signal will produce a two dimensional image as shown in Figures 3-28
through 3-39.
• If the camera is set for free-run, each cycle of the camera’s internal control signal will trigger
the output of a line on the test image.
• The exposure time has no effect on test images.
• The detailed descriptions of the test patterns assume that the AOI feature is set to use the full
area of the sensor. The descriptions also assume that the red gain, green gain, blue gain, red
offset, green offset and blue offset parameters are all set to 0 and that shading correction and
color shift correction are disabled. If these conditions are not met, the test patterns will look
different.
3.11.2 Enabling Test Images
You can enable a test image with the Camera Configuration Tool Plus (CCT+) or by using binary
write commands from within your own application to set the camera’s control and status registers
(CSRs).
With the CCT+
With the CCT+ (see Section 4.1), you use the Test Image Mode parameter in the Output
parameters group to enable a test image.
By Setting CSRs
You enable a test image by writing a value to the Mode field of the Test Image Mode CSR (see
page 4-36).
See Section 4.2.2 for an explanation of CSRs and Section 4.3.1 for an explanation of using read/
write commands.
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