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Try the inverse LUT. It just gives you a negative image.
What version of IMAQ are you using? I know NI changed some things going to IMAQ 2.2. In IMAQ 2.2 you can set a property node on IMAQ CREATE for specifying the lookup table. I am using the 1411 IMAQ card which is a little bit different from the 1408 IMAQ card.
Robert
Miguel wrote in message <37DFF6DE.77D47380@recol.es>... >Hi, > >In the IMAQ Reference Manual talks about predefinided look-up tables as >Equalize, Reverse, Square-Root and so on. > >However I can't find the Reverse look-up table anywhere. > >Does anyone know if it exists? > >Thanks to all. > >Miguel. > > >