HD200 colour space conversion

[routerunner]

Hi All,

I hope someone can tell me if the HD200 does the SD->HD colour space conversion automatically or not.

Basically, I have the HD200 connected to one of the HDMI port of my TV and want to ISF calibrate the TV input to the HD (Rec. 709) standard, but of course if you display SD source material which have a different colour space (Rec. 601) that material requires a different TV calibration, so the idea is to have the HD200 always displaying at 1080i (HD200 de-interlacer is not that good) without resolution switching so that, ideally, any SD material will be automatically converted to HD by the HD200 and with the right colour space, does it make sense? I know that disabling the resolution switching on the HD200 is not a good idea as the TV does make a better job in up-scaling and filtering, but IMHO is better to have the calibration right than a slightly better picture quality, I said slightly because I spent quite a lot of time comparing the same source material with and without the resolution switching and I must say that the difference was barely noticeable, so I can leave with that, but different colour space will be definitively more obvious.

Any thought, help will be appreciated...

[routerunner]

I found on the M$ MSDN website what the HD200 should do in order to answer my question.

Does anyone knows if the HD200 does something like that?


Color Space Conversion

Conversion from one Y'CbCr space to another requires the following steps.

Inverse quantization: Convert the Y'CbCr representation to a Y'PbPr representation, using the source nominal range.

Upsampling: Convert the sampled chroma values to 4:4:4 by interpolating chroma values.

YUV to RGB conversion: Convert from Y'PbPr to non-linear R'G'B', using the source transfer matrix.

Inverse transfer function: Convert non-linear R'G'B' to linear RGB, using the inverse of the transfer function.

RGB color space conversion: Use the color primaries to convert from the source RGB space to the target RGB space.

Transfer function: Convert linear RGB to non-linear R'G'B, using the target transfer function.

RGB to YUV conversion: Convert R'G'B' to Y'PbPr, using the target transfer matrix.

Downsampling: Convert 4:4:4 to 4:2:2, 4:2:0, or 4:1:1 by filtering the chroma values.

Quantization: Convert Y'PbPr to Y'CbCr, using the target nominal range.

Steps 1–4 occur in the source color space, and steps 6–9 occur in the target color space. In the actual implementation, intermediate steps can be approximated and adjacent steps can be combined. There is generally a trade-off between accuracy and computational cost.

For example, to convert from RT.601 to RT.709 requires the following stages:

Inverse quantization: Y'CbCr601to Y'PbPr601

Upsampling: Y'PbPr601

YUV to RGB: Y'PbPr601to R'G'B'601

Inverse transfer function: R'G'B'601to RGB601

RGB color space conversion: RGB601to RGB709

Transfer function: RGB709to R'G'B'709

RGB to YUV: R'G'B'709to Y'PbPr709

Downsampling: Y'PbPr709

Quantization: Y'PbPr709to Y'CbCr709