Originally Posted by HDgaming42
Switched to PC 0-255. Confirmed bolded. Reran LUT. Behold, what I refer to as "macroblocks".
Frustrating as all hell. I'm hoping you can help me troubleshoot this further...
LUT with PC 0-255
LUT Unity / Passthrough
LUT with PC 16-235
Passthrough / Unity LUT with TV Brightness Maxed
LUT with PC 0-255
LUT with Unity
The only configuration differences between the PC 0-255 LUT and the PC 16-235 LUT (beyond the video card output levels) was running fewer patches (154 vs 11K). All I did was drop the number of patches down. I didn't have to adjust brightness or contrast on the plasma--patterns looked good. DisplayCAL was happy with the white point RGB Balance and read 117cd/m2.
I did see something fly by in the logs along the lines of "black point hack failed to fire". Does that warrant looking into?
Just to inform, we have discussed that issue via email between us, usually the ways the user has to use to locate issues to a system is to evaluate the performance by taking post-calibration measurements with a meter, verify color reproduction patterns (this is why I have added about 150 Color Reproduction patterns to my calibration disk for that evaluation) or watch real content to see if there problems introduced.
What I did? since LightSpace CMS has tools and you can import any 3D LUT correction table, I can locate the errors in a cube generated correction in a few seconds, not only for those generated for my system but from any other user which has used any other calibration solution and it's experiencing problems.
There 3 ways to locate the problems with LightSpace, looking the: 1) 1D LUT Viewer, 2) Looking and rotating the 3D Cube Viewer, 3) using LUT Preview.
Looking the 1D LUT Viewer, I saw a strange (large) lift of near black details, is the the reason of the strange blocking of near black.
I used LightSpace's LUT manipulation filter to fix that problem (flatten near black) and user verified that blocking issue gone after loaded the fixed correction but it's not the solution, he has to find out why this is happening.
Also another strange issue is that the user had pre-calibrated his 100% White before starting the display profiling but as you see at top right end of the 1D LUT Viewer the RGB channels balance has changed (re-adjusted a lot).
The Pink line is the UNITY line, I added this manually using PhotoShop for better understanding of what the LUT is doing to the signal.
This shows that there something wrong not related with hardware used as 3D LUT table holder (eeColor 3D LUT Box), but something related to software or setup configuration, just it needs some further testing from the user.