Originally Posted by Pres2play
At present, the Linker is outputting YCbCr, but after reading the LightSpace Connection thread, I think it's just a setting in LightSpace that I've overlooked and it's resulting in the pattern clipping above 235.
I hope to hear from LS on this tomorrow. Thanks.
I'm not quite sure what is causing the difference in readings. All of the 100% stimulus grayscale patches within my pattern suite are true 10-bit 940|940|940 (235|235|235 8-bit) within the limited range for video. Here is a list of spec's and metadata for my patterns:
Format/Info: High Efficiency Video Coding
Format profile: Main 10@L5.1@High
Width: 3840 pixels
Height: 2160 pixels
Display aspect ratio: 16:9
Frame rate: 23.976 (24000/1001) FPS
Color space: YUV
Chroma subsampling: 4:2:0 (Type 2)
Bit depth: 10 bits
Color range: Limited
Color primaries: BT.2020
Transfer characteristics: SMPTE ST 2084
Matrix coefficients: BT.2020 non-constant
Mastering display color primaries: R: x=0.680000 y=0.320000, G: x=0.265000 y=0.690000, B: x=0.150000 y=0.060000, White point: x=0.312700 y=0.329000
Mastering display luminance: min: 0.0005 cd/m2, max: 1000.0000 cd/m2
Maximum Content Light Level: 1000 cd/m2
Maximum Frame-Average Light Level: 400 cd/m2
Just as a point of reference, here was the measured difference between my disc and the AccuPel 6000 on a 50% stimulus patch:
- Ryan M.