[Openicc] Linux CM ideology, was: meta data in test chart

[Chris Murphy]

Haha yes to the point that we even have a fourth primary in one such display. Now how is it that it's cheaper to produce a TV with a yellow primary than to choose three better primaries? Whatever, good luck with that.

I tend to agree. The data indicates people like high contrast and more saturated everything, including skin tones, than reality. Although I wonder if this has something to do with the significantly lower dynamic range and in particular luminance of TVs. Lower luminance, lower colorfulness. So perhaps that's what's going on there at least in part. But suffice to say colorimetrically accurate isn't what the market appears to want. And that even applies to professionals, where colorimetric matches tend to not "look as good" as perceptual (whatever word you want to call it) renderings.

Chris Murphy

On Feb 3, 2011, at 11:23 PM, Graeme Gill wrote:

> edmund ronald wrote:
>>  I think the TV movie guys and camera guys are going to end up
>> figuring out a model which works for them, just to get things working
>> reasonably well - customers who walk into a TV store expect to compare
>> TVs, cinematographers expect their theater and TV audience to share an
>> experience etc - I think at some point these people are going to
> 
> The evidence is against this. The majority of customers (judging by
> the "features" in modern TV sets), care little about color, as long
> as it impresses them. They aren't interested in accurate or realistic
> color, just color with "impact". Hence the plethora of dynamic features
> that manipulate the image, from frame up-interpolators (something that
> should be unnecessary if the original images are sampled properly to
> include motion blur), to edge enhancers, color enhancers, and
> color and range "enhancers" and filters of all descriptions.
> 
> To get what I would call realistic pictures out of a modern TV
> requires turning off upward of half a dozen of these "features".
> 
> Wide gamut ? Much like "D3" (read stereo vision), the problem
> will be "solved" by taking normal gamut signals, and "enhancing"
> them (there have already been papers at the CIC on this, and many
> more in less color savvy technical publications). No need to
> accurately convey a wider gamut, simply compress wide gamut originals
> into normal gamuts, then "enhance" at the TV end, so that
> _every_ picture has eye popping color! That's how to sell TV sets,
> make sure that your set is more eye-popping than the one next to it!
> 
> [ I understand that some sets have a "store" setting to
> ramp up the picture, and "normal" setting for actual viewing of
> progran. ]
> 
> Graeme Gill.
> 
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