Matrix Vision mvBlueFOX, Technical Manual, Page: 175 / 255

168 CONTENTS
19.5.1 Introducing LUTs
19.5.1.1 Introduction
Look-Up-Tables (LUT) are used to transform input data into a desirable output format. For example, if you want to
invert an 8 bit image, a Look-Up-Table will look like the following:
Figure 1: Look-Up-Table which inverts a pixel of an 8 bit mono image
I.e., a pixel which is white in the input image (value 255) will become black (value 0) in the output image.
All MATRIX VISION devices use a hardware based LUT which means that
• no host CPU load is needed and
• the LUT operations are independent of the transmission bit depth.
19.5.1.2 Setting the hardware based LUTs via LUT Control
Note
The mvBlueFOX cameras also feature a hardware based LUT. Although, you have to set the LUT via
Setting
- > Base - > ImageProcessing - > LUTOperations
(p. 168), you can set where the processing takes place.
For this reason, there is the parameter LUTImplementation . Just select either "Software" or "Hardware" .
19.5.1.3 Setting the Host based LUTs via LUTOperations
Host based LUTs are also available via "Setting -
>
Base -
>
ImageProcessing -
>
LUTOperations" ). Here, the
changes will affect the 8 bit image data and the processing needs the CPU of the host system.
The mvBlueFOX cameras also feature a hardware based LUT. Although, you have to set the LUT via "Setting - >
Base - > ImageProcessing - > LUTOperations" , you can set where the processing takes place. For this reason,
there is the parameter LUTImplementation . Just select either "Software" or "Hardware" .
Three "LUTMode"s are available:
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