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Old 03-01-2015, 11:15 PM   #1821
Penton-Man Penton-Man is offline
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Quote:
Originally Posted by dvdmike View Post
There are three kinds of lies: lies, damned lies, and statistics.
Caveats as described in the previous post and if I recall my numbers right, the findings were accepted and presented to the 150th? Meeting of MPEG and the 15th? International Workshop on Multimedia Signal Processing of the IEEE (Institute of Electrical and Electronics Engineers).
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Old 03-02-2015, 06:13 AM   #1822
dvdmike dvdmike is offline
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Quote:
Originally Posted by Penton-Man View Post
Caveats as described in the previous post and if I recall my numbers right, the findings were accepted and presented to the 150th? Meeting of MPEG and the 15th? International Workshop on Multimedia Signal Processing of the IEEE (Institute of Electrical and Electronics Engineers).
It matters not who presented them to who, people are involved in the numbers the placebo effect would kill have of what people perceive.
how many people see a white and gold dress....
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Old 03-02-2015, 05:17 PM   #1823
Penton-Man Penton-Man is offline
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Richard, or anyone, Lyris, etc., did you get thru the Cinealta article linked to on the last page (which just became available online about a week ago) and pertaining to the HDR explanation and eventual consumer television applications…what think you as to which display type will provide a superior image…..LG’s 4K OLED (with claimed 800 nits capability) showing HDR movie content using the open standard (or Dolby Vision) or….the other LCD brands (starting with Samsung, etc.), offering the same, but at a max. luminance of 1000 nits or more?

In other words, will ~200 nits beat out OLED (hdr) quality? I think not.
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Old 03-02-2015, 05:18 PM   #1824
Penton-Man Penton-Man is offline
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Quote:
Originally Posted by dvdmike View Post
It matters not who presented them to who, people are involved in the numbers the placebo effect would kill have of what people perceive.
how many people see a white and gold dress....
Sorry Mike, I’m not following ….what dress? What the hell are you talking about?
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Old 03-02-2015, 07:54 PM   #1825
raygendreau raygendreau is offline
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A little humor, perhaps? "Repurposing Blu-ray Movie Discs as Quasi-random Nanoimprinting Templates for Photon Management."

http://phys.org/news/2014-11-blu-ray...olar-cell.html
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Old 03-02-2015, 07:58 PM   #1826
dvdmike dvdmike is offline
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Quote:
Originally Posted by Penton-Man View Post
Sorry Mike, I’m not following ….what dress? What the hell are you talking about?
http://www.bbc.co.uk/news/uk-scotlan...lands-31656935
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Old 03-02-2015, 11:08 PM   #1827
jono3000 jono3000 is offline
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Originally Posted by dvdmike View Post
My social media feeds were full of this the other day. Just goes to show how most people dont understand contrast, brightness and how different displays are (un)calibrated differently.
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Old 03-03-2015, 02:00 AM   #1828
Penton-Man Penton-Man is offline
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Wow! That’s great!

I didn’t understand your analogy for I’ve been out of the ‘social media’ loop, as for one thing, it’s tax preparation time here in the U.S. so my wife and I’ve been very involved in searching and accumulating all necessary paperwork (basis(es) for real property as well as stocks, etc.) for our accountant, plus, just generally still catching up with other things/obligations since spending a week at HPA tech retreat.

Anyways, that BBC clip of the dress and peoples’ reactions is fabulous! With the photo, my wife clearly sees gold and white whereas I clearly see blue and black despite both of us having been tested in the past as having normal color vision as per this tool - http://www.amazon.com/ColorDx-Waggon.../dp/B00KWIBQOE

So you see ‘collectors’, Science can be cool. Hopefully that dress example will inspire some young kid out there to become a neuroscientist, ophthalmologist or neurosurgeon in order to learn where/why we (individual humans) visualize the dress as different colors. Is it based upon reception (human variability in the number/ratio of L vs. M cones) or processing in the striate cortex (or beyond - http://www.ncbi.nlm.nih.gov/pubmed/17988638) ?

It puts a smile on my face to think that something as cutely trivial as this online dress *controversy* might induce some young scholar into a career into unlocking secrets of the visual system leading someday to clinical applications of more serious ‘Seeing is Believing’ significance .
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Old 03-03-2015, 02:11 AM   #1829
Penton-Man Penton-Man is offline
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Originally Posted by Penton-Man View Post
something as cutely trivial as this online dress *controversy* might induce some young scholar
e.g. like a high school kid choosing a “big book” in the library simply in order to learn something new….and thereby, later on becoming a neuroscientist -

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Old 03-03-2015, 02:15 AM   #1830
Penton-Man Penton-Man is offline
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Quote:
Originally Posted by Penton-Man View Post
something as cutely trivial as this online dress *controversy* might induce some young scholar
Please nobody take the above ^ wording as me being dismissive of all social media...for on the contrary, I try to be as open-minded and well read as possible, it’s just that I have a lot on my plate right now. Mike, thanks for the link, truly.
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Old 03-03-2015, 02:21 AM   #1831
Penton-Man Penton-Man is offline
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Quote:
Originally Posted by jono3000 View Post
My social media feeds were full of this the other day. Just goes to show how most people dont understand contrast, brightness and how different displays are (un)calibrated differently.
jono, me thinks the mixed perceptions among the public is related to acquisition (poor photo)…or to see it from a different perspective (grrreat photo that leverages a sweet spot in the differences in color perception by people) rather than a matter of display calibration. Experiments by color scientists (esp. the RIT folks) have shown that (color normal) observers perceive colors quite differently and therefore some worry that this could become an issue in color-critical professional applications involving modern wide-gamut (BT.2020) displays.
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Old 03-03-2015, 05:43 PM   #1832
NuJazz NuJazz is offline
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Default No 3D in 4K blu rays!

May somebody confirm this information?
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Old 03-03-2015, 05:49 PM   #1833
Penton-Man Penton-Man is offline
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Quote:
Originally Posted by Penton-Man View Post
jono, me thinks the mixed perceptions among the public is related to acquisition (poor photo)…or to see it from a different perspective (grrreat photo that leverages a sweet spot in the differences in color perception by people) rather than a matter of display calibration...
Follow-up to the above ^. We viewed the dress photo again this morning on not just any calibrated display, but one calibrated (not by me) with a Photo Research spectroradiometer, latest CalMAN software, test pattern generators, i.e. the whole 9 yards.

(as an aside, a plug for those locals in need of calibration(s) –
http://www.solvengineering.com/

Anyway, today’s observation yielded the same mixed results as seen at home last night with me and my better half as sole ‘study’ participants viewing on our more crudely calibrated desktop monitor running Windows. She still sees gold and white, whereas, I see her gold as black and her white as blue.

So, given perfect conditions, or the *perfect storm* if you will, it is not unusual for people to perceive colors differently with certain content. In fact, research regarding the concept of the diversity of human perception of color was recently presented to a Study group at a recent SMPTE standards meeting as previously noted about 30 pages back -
Quote:
Originally Posted by Penton-Man View Post
...there is a challenge involving a possible need for standardized spectral power distributions for display primaries due to more variation in spectral power density because of the range of technologies used…research concerning of which was just presented to a SMPTE working group (closed to the general public or A/V reporters), a few weeks ago.
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Old 03-03-2015, 09:00 PM   #1834
Penton-Man Penton-Man is offline
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My social media feeds were full of this the other day....
I asked my wife today to keep me up to speed with any social media news on "the dress", so she sent me this – http://www.nbcnews.com/politics/poli...r-says-n316281
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Old 03-03-2015, 09:07 PM   #1835
FilmFreakosaurus FilmFreakosaurus is offline
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Quote:
Originally Posted by NuJazz View Post
May somebody confirm this information?
As of now, there is no 4k 3D spec. included with Ultra HD discs. It isn't used in DCP's for the cinema either.

3D is limited on the consumer side to frame packed MVC 1080p as before.
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Old 03-03-2015, 09:13 PM   #1836
Penton-Man Penton-Man is offline
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Quote:
Originally Posted by Penton-Man View Post
jono, me thinks the mixed perceptions among the public is related to acquisition (poor photo)…or to see it from a different perspective (grrreat photo that leverages a sweet spot in the differences in color perception by people) rather than a matter of display calibration. Experiments by color scientists (esp. the RIT folks) have shown that (color normal) observers perceive colors quite differently and therefore some worry that this could become an issue in color-critical professional applications involving modern wide-gamut (BT.2020) displays.
Received an email pertaining to this ^ post. In that regard, how do people get my email addy when I don’t freely give it out? Nevertheless, I try to answer all emails respectfully unless they come from Hollywood studio executives issuing veiled threats, which has happened before.

Anyway, readers shouldn’t make the erroneous linkage that the situation with *the dress* (not Monica's) is due to what some have recently popularized as an unequivocally seriously significant issue for home theater enthusiasts…that of observer metamerism with wide color gamut displays of the future. Beecause, for one thing, display technology can improve/change over the course of time.

To clarify -
People are seeing the dress as different colors due to the diversity of human perception of color.

Observer metamerism is also due to the diversity of human perception of color.

….BUT…different color perception of the dress is not due to observer metamerism. There are different etiologies involved.

Lunch break over. Back to the salt mines
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Old 03-03-2015, 09:39 PM   #1837
raygendreau raygendreau is offline
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Hmmm. I hear there is a bit of white and gold on that blue Lewinski dress. Could be removed by drycleaning
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Old 03-03-2015, 09:51 PM   #1838
dvdmike dvdmike is offline
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Quote:
Originally Posted by Penton-Man View Post
Received an email pertaining to this ^ post. In that regard, how do people get my email addy when I don’t freely give it out? Nevertheless, I try to answer all emails respectfully unless they come from Hollywood studio executives issuing veiled threats, which has happened before.

Anyway, readers shouldn’t make the erroneous linkage that the situation with *the dress* (not Monica's) is due to what some have recently popularized as an unequivocally seriously significant issue for home theater enthusiasts…that of observer metamerism with wide color gamut displays of the future. Beecause, for one thing, display technology can improve/change over the course of time.

To clarify -
People are seeing the dress as different colors due to the diversity of human perception of color.

Observer metamerism is also due to the diversity of human perception of color.

….BUT…different color perception of the dress is not due to observer metamerism. There are different etiologies involved.

Lunch break over. Back to the salt mines
It's down to the cones in the eyes and how we see rgb, plus an over exposed image
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Old 03-04-2015, 05:31 PM   #1839
Penton-Man Penton-Man is offline
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Forget easy ones like the theories by Edwin Land or von Helmholtz (or opponents…http://proceedings.spiedigitallibrar...ticleid=857697 ) or whether a tumor in V1 is more or less devastating than one occupying any other cortical visual area of….da brain. Let’s skip right to the hard one that everyone wants to know….”What’s the color of the boathouse at Hereford?” ….or is it Hareford?
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Old 03-04-2015, 08:38 PM   #1840
dvdmike dvdmike is offline
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Quote:
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Forget easy ones like the theories by Edwin Land or von Helmholtz (or opponents…http://proceedings.spiedigitallibrar...ticleid=857697 ) or whether a tumor in V1 is more or less devastating than one occupying any other cortical visual area of….da brain. Let’s skip right to the hard one that everyone wants to know….”What’s the color of the boathouse at Hereford?” ….or is it Hareford?
Herafud and watch out for the coffee cup
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Geoff D (03-05-2015)
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