Gamut Error
The total range of the SDI 10bit signal is 0 to 1023. The range 0 to 3 and 1020 to 1023 are the reserved
values for Sync, and the total video signal range is 4 to 1019.
In a video signal, each primary component should lie between 0 and 100% of the video range between black
level and peak level (R and G and B). Ideally, video levels should lie within the specified limits so that
programs can be distributed without adjustment.
100% White pa ern: Y - 940, Cb - 512, Cr - 512. 0% Black pa ern: Y - 64, Cb - 512, Cr - 512
Expected Video Range: 64 to 940
In prac ce, it is difficult to avoid genera ng signals slightly out of range, and it is considered reasonable to
allow a small tolerance. Therefore, the EBU recommends that the RGB components and the corresponding
Luminance (Y) signal should not normally exceed the “preferred minimum/maximum” range of digital
sample levels in the table below.
Type 2: Black & White Zebra
When the targeted color space is selected as BT.709, the pixels
outside of the targeted color space are displayed as Black or White
Zebra. The pxels over Y Maximum, Chroma Maximum, RGB
Maximum are displayed as Black Zebra, and the pixels below Y
Minimum, ChromaMinimum, RGB Minimum are displayed as
White Zebra.
Type 1: Black Zebra
When the targeted color space is selected as BT.709, the pixels outside of
the targeted color space are displayed as Black Zebra.
The pxels over Y Maximum, Chroma Maximum, RGB Maximum are
displayed as Black Zebra, and the pixels below Y Minimum, Chroma
Minimum, RGB Minimum are also displayed as Black Zebra.
System
Bit Depth
Range in Digital Sample (Code) Values
Expected Video Range
Preferred Min. / Max.
Total Video Signal Range
10 bit
64 - 940
20 - 984
4 - 1019
*References: EBU R 103 Version 2.0 page 4, Annex 1
Type 3: Mono
When the targeted color space is selected as BT.709, the pixels
inside of the targeted color space are displayed as Mono, and the
pixels outside of the targeted color space are displayed as the
color. In this type, black and white area is not recognized.
*Simulated image
OBM-8K Series
8K LCD Professional Monitor
12G-SDI Quad Link 8K
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