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Figure 65: Mid-grey 12 bit pixel image and 8 bit display with 2 example shifts
In this particular case, the pixel will be brighter (as the most significant bits are 1’s). Perhaps you already
recognized it. Each shift means that each pixel value is multiplied or divided by 2 according to the direction.
Anyway, there is one restriction in the 8 bit display:
If the pixel value is greater than 255, the pixel value will be clipped to 255. To describe this from a
programmer’s view; \c a represents the pixel value:
a = ( a > 255 ) ? 255 : a
With wxPropView you can shift the bits in the display using the left and right arrow keys. Furthermore you
can turn on the monitor display to compare the images synchronously.
wxPropView - Bit-shifting an Image
13.4.1.2 How to configure a device
As described above, after the device has been initialized successfully in the "Grid" area of the GUI the
available interface layout properties are displayed in a hierarchy tree. GenICam is the default interface
layout
of the mvBlueLYNX-X and we recommend to use it!
wxPropView - Configuring a device
13.4.1.2.1 How to see the first image
As described earlier, for each recognized device in the system the devices serial number will appear in the
drop down menu in the upper left corner of the Upper Tool Bar. When this is the first time you start the
application after the system has been booted this might take some seconds. Once you have selected the device
of your choice from the drop down menu click on the Use button to open it.
For color sensors, it is recommended to perform a white balance calibration before acquiring images.
This will improve the quality of the resulting images significantly.
Now, you can capture images, just
select an Acquisition Mode e.g. SingleFrame and •
click the Acquire button. •
mvBlueLYNX-X Technical Manual
108 22 April 2016 Version - 1.49 MATRIX VISION GmbH