ID 152695 - Broadcast monitor - double check 8 and 10 bit colour conversion accuracy

8-bit and 10-bit colour conversion may be inaccurate causing a slight colour shift

 

9.0v5

 

1. Create a linear ramp from 0.0 to 1.0 with no VLUT

2. Select 10-bit 4:2:2 as the pixel format

result: the ramp on the SDI output does not go from 0 to 100 IRE as expected

3. Change the pixel format to 8-bit 4:2:2 

Result: range becomes correct 

4. Go back to 10-bit 4:2:2 and the range does not match either its original value or the correct value

 

Engineering repro

 

Values to be consistent between pixel formats