BOBCAT HD-SDI
Hardware User’s Manual
Imperx, Inc.
Rev. 1.4
6421 Congress Ave.
6/2/2014
Boca Raton, FL 33487
+1 (561) 989-0006
157 of 175
B.1
OVERVIEW
The Lookup Table file can be created using any standard ASCII text editor or
by using Microsoft Excel. Additionally, any spreadsheet or mathematical
program capable of generating a comma delimited (.csv) file can be used.
See Appendix E for software load procedure.
B.2 USING AN ASCII TEXT EDITOR
A custom LUT (lookup table) can be prepared using any ASCII text editor,
such as “Notepad” or similar. Alternatively, any spreadsheet program (i.e.
Microsoft Excel) can be used by converting the spreadsheet into a comma
delimited (.csv) file. In either case, the file must be renamed to include the .lut
extension. The .lut file has two main sections: a header and a table. The
‘header’ section is a free text area of up to 256 ASCII characters. Each line of
the header section must be terminated in a comma. The ‘table’ section of the
file contains an array of 1024 lines for mono camera, 1024*3 lines for color
camera with each line containing an input value followed by a comma and an
output value. The input values represent incoming pixels and the output values
represent what each incoming pixel should be converted into as an output
pixel.
The format of the .LUT file for mono camera is as follows:
-- Look Up Table input file example,
-- lines beginning with two dashes are comments,
-- and are ignored by parser,
:Header,
-- this is the text that will get displayed with a 'glh'
command,
Function is 'Negative Image',
Created by John Doe,
Date 1/14/09,
:Table,
-- input output,
0,4095
1,4094
2,4093
3,4092
4,4091
:
4095,0
