get gray, you should rest assured in your methods, I skimmed through your document and it is good. trbrunet has not grasped the presence of this footroom and headroom, the digital range, nor the interface between digital and analog video.
|There seems to be some confusion on the expansion from 8 bit (235/16) to
PC with (255/000). If "black" is (0%) for one, then should it be (0%) for PC?
I have explained to you, that 0% stim, or black, is coded at level 0 with PC Graphics levels, and is coded at level 16 when following Video standards for video material. This is in the digital realm. Both 0 and 16 can represent 0% stim, or black, depending on the encoding standard used. For video it should always be at level 16, and not 0.
As I explained to you before, when digital is converted into analog, it depends on the source device what voltage(IRE) these values will become.
|Can someone please explain? How can anyone report "seeing" the BTB bar that is coded in the Avia/DVE grey ramps?
If your playback system does not clip the data, you can temporarily raise your black level, and decrease your white level to ensure that the entire signal is visible within the contrast range of your display, and you can see the BTB and peak white portions of the signal range. As I told you before, you must use DVE, DVE PRO, or Avia PRO for this testing. Avia's pattern elements are limited to the 16-235 range, there are no elements outside these bounds. Avia PRO has full-range patterns.