On Fri, 2008-11-28 at 19:18 -0800, Hal V. Engel wrote: > On Friday 28 November 2008 18:44:06 Leonard Evens wrote: > > On Sat, 2008-11-29 at 12:16 +1100, Graeme Gill wrote: > > > Leonard Evens wrote: > > > > I understand correctly, that term refers to a table stored in my video > > > > card. Does the monitor have its own LUT which is used to `calibrate' > > > > the monitor? > > > > > > Generally LCD's have their own lookup tables they process the > > > video data through before sending to the actual panel. It is > > > this mechanism they use to simulate the range of controls > > > that people expect to be on monitors. For color calibration > > > and profiling purposes, these simulations usually degrade > > > the resulting images. > > > > > > Graeme Gill. > > > > I reviewed for myself how LCD monitors work. Is there anything, such > > as the brightness of the light soure, which one adjusts at the hardware > > level. Or it it just all done by the internal LUT. > > For consumer grade LCDs the only adjustment that does not use the internal > LUT > is the back light level (brightness). Everything else (contrast, color > controls, gamma...) uses the internal LUT. > > Hal Is the back light level denoted Brightness or is it denoted Contrast?