Dalsa Linea HS Series, Руководство пользователя

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Camera Performance and Features
When an image contains no useful dark image data below a specific threshold, then it may be
beneficial to increase the contrast of the image.
The camera has an offset feature that allows a specified level to be subtracted from the image
data. The gain feature can then be used to return the peak image data to near output saturation
with the result being increased image contrast.
First, determine the offset value you need to subtract from the image with the current gain setting
you are using. Then set this as a negative offset value and apply additional gain to achieve the
desired peak image data values.
Note: A positive offset value is not useful for contrast enhancement. However, it can be used while
measuring the dark noise level of the camera to ensure zero clipping is not present.
Changing Output Configuration
Pixel Format
See the section Image Format Control Category in Appendix A for GenICam features associated
with this section and how to use them
Related Feature: Pixel Format
The camera can output video data as 8-bit or 12-bit.
Use the Mono8 Pixel Format to process image data as one, or two separate image planes.
Note: Pixel Format, and associated features, can only be changed when the image transfer
to the frame grabber is stopped.
For example, to change from 8-bit to 12-bit pixel format:
1. In Acquisition and Transfer Control, set Stop Acquisition.
2. Set Pixel Format to Mono 12.
3. In the host frame grabber configuration, set Pixel Depth to 12.
4. In Acquisition and Transfer Control, set Start Acquisition.
Refer to the “Acquisition and Transfer Control’ category in the appendix for details on stopping and
starting acquisitions.
Saving & Restoring Camera Setup Configurations
See the section Camera Information Category in Appendix A for GenICam features associated with
this section and how to use them
Related Features: Power-up Configuration Selector, UserSet1 thru UserSet16, User Set Selector,
Power-on User Set, Current User Set
An inspection system may use multiple illumination, resolution, and responsivity configurations in
order to cover the different types of inspection it performs.