GCD - Gamut Calibration Disk - Page 8 - AVS Forum
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post #211 of 633 Old 05-25-2012, 05:08 AM
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Respected Zoyd!
Why in your color checker palette in GCD_targets v8.xlsx.zip in measured table not taken into account Y [cd/m2] for all colors?
Mistake?
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post #212 of 633 Old 05-25-2012, 05:54 AM
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yes, thank you. Attached version fixed, please trash previous version.


Quote:
Originally Posted by anta1974 View Post
max dE below 3 - what dE (1976 or 1994 or 2000)?
94 or 2000, they are very close to each other.

 

GCD_targets v9.xlsx.zip 149.2275390625k . file
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File Type: zip GCD_targets v9.xlsx.zip (149.2 KB, 23 views)

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post #213 of 633 Old 05-25-2012, 08:02 AM
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Thank you very much.

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post #214 of 633 Old 05-25-2012, 08:03 AM
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Why not change the gamma in calculation?
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post #215 of 633 Old 05-25-2012, 08:05 AM
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Which calculation? I don't understand the question.

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post #216 of 633 Old 05-25-2012, 09:10 AM
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in your table list:
1) color targets
2) gamma target
3) calculation
4) worksheet

gamma in calculation i can not change
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post #217 of 633 Old 05-25-2012, 09:35 AM - Thread Starter
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All,

as you know I have not been very active lately and I will not be active either for the next few weeks, as work is taking over my life

however I am still planing on finishing this disk.

meanwhile if there is any comments please let me know.
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post #218 of 633 Old 05-25-2012, 09:36 AM
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You can change gamma on tab 1.

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post #219 of 633 Old 05-25-2012, 09:40 AM
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Not work button pop-up menu.
Why pattrens 10% area rather than 12% area - recommendations THX?
Signature at the bottom patterns prevents the calibration plasmas.

Good to have expand the color checker patterns.
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post #220 of 633 Old 05-25-2012, 09:41 AM
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Quote:
Originally Posted by zoyd View Post

You can change gamma on tab 1.

So I did
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post #221 of 633 Old 05-25-2012, 09:46 AM - Thread Starter
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Pop-up menus will be included, but just not yet.
10% was what was agreed early in the thread - not sure what the difference really would be either?
I find it hard to believe that the signature at the bottom will give you inaccurate results when calibrating - I included these as I find them invaluable when navigating through saturation and luminance sweeps.
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post #222 of 633 Old 05-25-2012, 10:02 AM
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I had recently learned from the professional (THX 2) these data.
It is important for plasma.
I have LED - this is why I am not particularly worried about.
Professionals (THX/ISF) hide the information, and laugh at the fans!

Valuable information for free, and worth the money they do not want to give.
They've got probably the law of omerta.
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post #223 of 633 Old 05-25-2012, 10:06 AM
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Quote:
Originally Posted by anta1974 View Post

Not work button pop-up menu.
Why pattrens 10% area rather than 12% area - recommendations THX?
Signature at the bottom patterns prevents the calibration plasmas.

Good to have expand the color checker patterns.

Demand much? Whether we use 10 or 12% window size is irrelevant so we chose 10% (close to accupel generator size).

Which additional colors would you add and why?

Are you worried about image retention from the annotation? That can happen with any fixed pattern so follow common sense usage.

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post #224 of 633 Old 05-25-2012, 10:18 AM
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requirements THX for calibration plazm - 12%(private information onto a closed NDA) (I invented it does not I do not care I do not have a plasma).

I wrote about the inscription verbatim quote from the professional.
"Major label can be placed plasma configuration"
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post #225 of 633 Old 05-25-2012, 10:21 AM
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"Which additional colors would you add and why?"
I do not know.
But I think that they need to expand because the films are used:
greyscale - 10-90
colors - 30-80
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post #226 of 633 Old 05-25-2012, 10:33 AM
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Quote:
Originally Posted by anta1974 View Post

"Which additional colors would you add and why?"
I do not know.
But I think that they need to expand because the films are used:
greyscale - 10-90
colors - 30-80

The idea with the color checker is not to try and quantify all film(video) levels but to have a selection of "memory" colors (1-5) and other key gamut points (6-12) so as to weight the most important sub-set of the gamut more heavily than the standard calibration points if your display has a non-linear CMS. Displays like plasmas and LCD which do not have well separated primaries will always have some level of non-linearity.

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post #227 of 633 Old 05-25-2012, 10:45 AM
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that is, it will be enough

"have a great Russian proverb-
the best the enemy of good"
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post #228 of 633 Old 05-27-2012, 05:46 AM
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1) Why not be used patterns in the form of pictures in JPEG (RGB->YCbCr 4:4:4 or 4:2:0 or lossless JPEG)?
2) for LED TV can use fields patterns?
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post #229 of 633 Old 05-27-2012, 06:19 AM - Thread Starter
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1: bluray players does very rarely show picture files correctly (see Smackrabbit research on this subject.
2: as far as I am aware use windows on LED sets, fields is only for front projectors and LCD.
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post #230 of 633 Old 05-27-2012, 06:20 AM
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if you create a 12% patterns with APL what should be APL - 10% or 15% or 20% or another?
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post #231 of 633 Old 05-27-2012, 06:26 AM - Thread Starter
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if you want that big size patterns the APL would very for each pattern.
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post #232 of 633 Old 05-27-2012, 06:36 AM
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What do I use patterns to calibrate my LED Samsung UE55B7000?
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post #233 of 633 Old 05-27-2012, 06:37 AM
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why THX recommends that for the plasma 12% patterns?
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post #234 of 633 Old 05-27-2012, 06:51 AM
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Quote:
Originally Posted by visca blaugrana View Post

1: bluray players does very rarely show picture files correctly (see Smackrabbit research on this subject.
2: as far as I am aware use windows on LED sets, fields is only for front projectors and LCD.

I propose to use YCbCr 4:4:4 - player Pioneer,Samsung correctly - look http://www.hometheaterhifi.com/blu-r...s-reviews.html
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post #235 of 633 Old 05-28-2012, 11:14 AM
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Quote:
Originally Posted by visca blaugrana View Post

if you want that big size patterns the APL would very for each pattern.

How to count APL for each pattern?

I want to do for yourself only 75/75 RGBYCMW and greyscale with 12% patterns!
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post #236 of 633 Old 05-29-2012, 11:00 AM
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Quote:
Originally Posted by zoyd View Post

APL background should be full field 25% so as not to trigger ABL on plasmas.



What should be APL background full field on LED so as not to trigger ABL ?


Only 25% or can be 50% or any?

A better way to APL = 60 cd/m2 (50% of the 120 cd/m2)?

And for 12% patterns what should be APL?
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post #237 of 633 Old 06-16-2012, 08:28 AM - Thread Starter
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I have some time this weekend so I am updating a bit. hopefully by tomorrow there should be a release with some extra misc patterns/pictures (thanks zoyd) and also some simple popup navigation. Adobe Encore is s*% for this, so its very basic.
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post #238 of 633 Old 06-16-2012, 09:11 AM
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Great news!
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post #239 of 633 Old 06-17-2012, 07:30 AM - Thread Starter
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please see first post for latest demo version.
(link will be available in about 30 minutes)

this release contain very basic pop-up menus

pleas comment on what navigation would be desired within these menus

also if someone have some experience with photoshop, and want to help please let me know. would love some better looking layout.

regards.

Visca
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post #240 of 633 Old 06-17-2012, 08:00 AM
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Here is the latest disk worksheet, can you attach to post #1 - thanks.

GCD_targets v11.xlsx 176k .xlsx file



edit: gave the new disk a quick check and couldn't find any pop-ups active.
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File Type: xlsx GCD_targets v11.xlsx (176.0 KB, 39 views)

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