7 Graphical User Interface (GUI)
Look-Up-Table
Gray level transformation is remapping of the gray level values of an input image to new
values which transform the image in some way. The look-up-table (LUT) is used to convert the
grayscale value of each pixel in an image into another gray value. It is typically used to
implement a transfer curve for contrast expansion.
The MV-D1024E-40 camera performs a 10-to-8-bit mapping, so that 1024 input gray levels can
be mapped to 256 output gray levels (0 to 1023 and 0 to 255).
The default LUT is a gain function with value = 1.
Lut Mode:
Gain:
Linear function. Y = 255 / 1023 * value * X; Valid range for
value
[1...4].
Gamma:
Gamma function. Y = 255 / 1023^value * X ^ value; Valid range for
value
[0.4...4].
value:
Enter a value. The LUT will be calculated and downloaded to the camera.
Load File...:
Load a user defined LUT - file into the camera (*.txt tab delimited). There is an
example in the PFRemote directory (mv_d1024e_40_lut.txt).
Save File...:
Save LUT from camera into a file.
It is also possible to load a user LUT-file with missing input values (LUT-addresses). Then only
pixel values corresponding to listed LUT entries will be overwritten. Example of a user defined
LUT file:
Figure 7.6: Example of a user defined LUT file
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Summary of Contents for CameraLink MV-D1024E-160
Page 1: ...User Manual MV D1024E CameraLink Series CMOS Area Scan Cameras MAN028 03 2008 V1 3...
Page 2: ......
Page 4: ...2...
Page 8: ...CONTENTS 6...
Page 14: ...2 How to get started CameraLink 12...
Page 20: ...3 Product Specification 18...
Page 46: ...4 Functionality 44...
Page 94: ...9 Warranty 92...
Page 96: ...10 References 94...
Page 100: ...11 Pinouts 98...
