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Old 29th April 2019, 16:08   #56052  |  Link
nevcairiel
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Join Date: Mar 2010
Location: Hamburg/Germany
Posts: 10,348
Quote:
Originally Posted by tp4tissue View Post
It isn't that Tvs can't produce a certain color, they simply don't produce right colors by choice of the maker, influenced by the ignorance of the consumer.
Thats why they have several presets. Some cater to people that like warmer image, some like colder, and some like it accurate. Its easy enough to read various TV reviews, measuring pre/post calibrated color is something many better reviews do these days (with post-calibration being done using TV integrated calibration solutions, so that already gives you some information how good those work as well)

Quote:
Originally Posted by tp4tissue View Post
What has not been solved is End to End, and the only way to solve it is Consumer measurement.

For example, just in this thread, we have red hue green hue oddities with simple driver differences. What assurance do we have that a bluray player or some other electronic isn't rendering / outputting something equally anomalous. How would the user know without measuring ?

That 20 point gamma adjustment, do it by eye ? This is the solution?

Yes we have a better picture today than yesteryears, but that last stretch towards the viewer has always been the missing component.

Factory calibration is good but drifted after 1000 hours, and worthless after 5000 hours. That could be between 1-2 years.

[...]

Calibration and RE-Calibration are critical.
I never said you should not measure. You can measure and then calibrate the colors in the TVs controls as much as it lets you. In fact, even if you use a 3DLUT, you should do that, since it can often correct in directions that a 3DLUT simply cannot go (ie. if the gamut is too narrow, a 3DLUT cannot expand it, it can only ever narrow it further, while TV controls can potentially expand it).

With a good TV with good calibration controls, this can get you to levels close to perfect, beyond visible differences. This is how TV calibration has worked for years, without any fancy external boxes. Some people even pay professionals for a one-time calibration (which is often cheaper then buying a colorimeter if you only do it once, nevermind needing to know wtf you are doing).
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Last edited by nevcairiel; 29th April 2019 at 16:12.
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