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La calibration Chromapure pas à pas

Message » 02 Jan 2014 15:26

PingouMasqué a écrit:
PingouMasqué a écrit:Je ne sais pas si ceux qui possèdent une licence peuvent demander à bénéficier de ce DVD (ou au moins, l'image ISO) a posteriori.

J'ai posé la question à Tom Huffman et la réponse a été très rapide.
Il m'indique que n'importe qui peut acheter le DVD...
Ce qui veut dire pour moi qu'il associe les précédents acheteurs de Chromapure à "n'importe qui": sympa :)

Il faut savoir que Tom a une société commerciale, et que le travail doit se payer un minimum.

Je suis sûr que tom ne te prends pas pour n'importe qui, c''est juste que maintenant si tu prends un bundle chez lui tu aura le disque gratuit. Mais si tu l'a déja acheté, il faut payer pour avoir le disque.

De toute façon, ce n'est pas un problème car tu peux trouver pleins de disques gratuit pour chromapure (voir ma signature)

:wink:
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Message » 02 Jan 2014 20:29

Justement, une bonne société commerciale donne l'impression/l'illusion de considérer ses clients pour qu'ils se sentent "particuliers".
Là, je suis considéré comme n'importe qui... donc je n'ai aucun sentiment d'attachement à Chromapure et donc, je n'aurais aucun scrupule à aller voir ailleurs. C'est un mauvais calcul... (d'autant que je ne parle pas d'avoir le beau DVD expédié chez moi mais juste pouvoir télécharger l'ISO pour les anciens acheteurs)
Sur le fond, bien évidemment qu'il y a d'autres possibilités pour avoir un DVD de mires.
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Message » 03 Jan 2014 13:10

Bonjour à tous. cela fait quelques temps que j'utilise chromapure et la sonde X-rite display3 Pro.

Comment positonnez-vous exactement votre sonde?

Car j'ai remarqué que suivant la position de la sonde, les valeurs mesurée était très différentes, surtout au niveau du rouge... J'ai l'impression que l'ombre de la sonde sur l'écran en est la cause. Donc je pense que plus la sonde est loin, 80cm à 1m sonde face à l'écran, plus les résultats sont correct.

Je précise que ce problème n'était pas ou peux présent lorsque mon projo était au plafond, mais actuellement je projette provisoirement en ayant le projo à l'axe de l'écran ce qui fait que l'ombre de la sonde se retrouve pile dans l'axe des mesures.

D'ou mes interrogations quant au placement idéal de la sonde... :roll:
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Message » 03 Jan 2014 13:13

La sonde doit être parfaitement horizontale et effectivement 80cm de l'écran ne me semble pas adapté. Je l'utilise bien plus loin que ca (en général entre 1,5 et 2m) cela permet d'ailleurs de prendre mieux en compte l'impact de l'environnement...

--Patrice

La configuration dans mon profil


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Message » 03 Jan 2014 18:19

Merci pour la réponse qui confirme ce que je pensais :wink: .

Lorsque le projo était au plafond je mettais la sonde à 40cm de l'écran et je n'avais pas de problème.

En fait par un malheureux concours de circonstance je venais de passer de la version 2.3.2 à la dernière version 2.4.5 et de déplacer le projo. Donc au début j'ai cru que c'était à cause de la nouvelle version que ça n'allait plus, donc je suis repasser à l'ancienne version, ensuite je l'ai installé sur un autre portable et toujours le même problème. J'ai donc pensé que ma sonde avait foiré, J'ai donc lancé des mesures en utilisant mon ancienne sonde et le programme HCFR qui n'ont fait que confirmer cela...

Puis, en dernier recours j'ai lancé une mesure en continu avec chromapure sur la balance des blancs à 80% et là je me suis rendu compte que suivant ou la sonde était positionnée cela changé grandement le résultat de la mesure et que cela était surtout dû au changement de place du projo qui se retrouve maintenant dans l'axe de la toile ce qui a induit que l'ombre de la sonde se retrouve pile poile au niveau de la mesure...

Du coup je me demande quelle est la distance idéale? Car en la mettant à 1m ou à 2m les résultats diffère quand même, mais bien sur dans une moindre mesure...
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Message » 03 Jan 2014 18:37

hamster a écrit:...J'ai donc lancé des mesures en utilisant mon ancienne sonde et le programme HCFR qui n'ont fait que confirmer cela...

Note que tu peux très bien utiliser ColorHCFR avec la Display 3 ;)

--Patrice

La configuration dans mon profil


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Message » 05 Jan 2014 15:44

Patlezinc a écrit:
tontonfunky a écrit:Bonjour Patlezinc,

Je tenais à te remercier chaleureusement pour la démarche dans laquelle tu t’es engagé avec ce tuto CHROMAPURE. Après des années de videoprojection, je vais enfin me décider à « mettre les mains dans le cambouis » grâce/à cause de toi :wink: . J’avais jusqu’ici profité des grandes compétences offertes par Alluciné et son enseigne dans ce domaine, pour faire calibrer mes VP :ohmg: . Un grand merci au passage, à Gilles, à qui j’exprime tous mes regrets pour la fin de sa fabuleuse aventure Audio Projection.

J’ai deux petites questions de base, pour bien commencer une calibration. La sonde doit elle être dirigée vers l’écran ou le VP (Désolé… :oops: ), et faut il débrancher l’iris dynamique pendant toute la procédure si le VP en possède un ?


De rien "tonton" :wink:

Pour la sonde, oui ,vers l'ecran car celui-ci est loin d'etre neutre... Tom Hoffman recommande pour la D3 entre 40cm et 1 m. 50 cm c'est bien donc.

Je ressors cette réponse mais a l'epoque j'avais demandé a Tom directement. Il avait dit entre 0.4m et 1.50m. De mon coté je le fais a 1m environ.
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Message » 31 Jan 2014 21:25

Je privilégie donc 1.5m :wink: .

Comment faites-vous une mesure du contraste ansi ?

Pour le contraste on/off, ce n'est pas très compliqué, on fait une mesure du noir et une du blanc et l'on a ensuite le résultat. Mais pour le contraste ansi j'ai pas tout compris... :wtf:
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Message » 01 Fév 2014 10:01

Tu passe une mesure ansi (carré noir carré blanc) et tu mesure le noir et le blanc
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Message » 01 Fév 2014 10:04

From ted on avs forum
Hello, I'm sorry but my website is not ready 100% but you will have a complete idea how the disk's Full Automated (for LightSpace) / Semi-Automated (for CalMAN/ChromaPure) works when you will read the following instructions:

Ted's LightSpace CMS Calibration Disk covers the 3 major software that pro/home calibratiors are using: LightSpace - CalMAN - ChromaPure.

For LightSpace the intergration with the Disk is Fully Automated, look how it works:

Intergration of Ted’s LightSpace CMS Calibration Disk with LightSpace Software for Automated Quick Profiling /10-Point Cube / 17-Point Cube Profilings without user prompt, How is this possible?

LightSpace is using 2 modes to display and measure the Patches of your SelecTED Cube Size:

Closed Loop Mode: Where the probe dictates the timings per patch, with bright patches measured much faster, darker ones need more time to be measured,

So with Closed Loop Mode you can use the LightSpace Internal Pattern Generator using you Notebook HDMI Output (with proper setup) or to use Lumagen Radiance Series as External Hardware Pattern Generator.

DIP mode (Display Independent Profiling): This mode uses a fixed time of displaying each color patch. Since the LightSpace is using the method of measuring only one time each color point, the patch sequence is fixed for each Cube Size, So My Disk is based to this fixed color point (patch) measuring order...

Example of DIP Mode:

Image

If you select the 5 sec DIP mode, each patch isdisplayed for exact 5 sec before it goes to the next color. LightSpace has a fixed internal delay of 0.5 sec (500ms) which gives command to your meter to read each patch 0.5sec after it’s been displayed via Lumagen or via HDMI Out or via my Disk.

If you want to add some extra delay time before each Patch Measurement, LightSpace has add a Selectable bar you can add any additional time you want, and LightSpace adds your extra time selection to the 0.5sec fixed internal delay.

Image

Example: If you select Extra Delay Time of 0.5sec, then the total delay you will have in total will be 1.0 sec (1000ms) before any meter read.

(This is something I requested from LightIlusion to Add it as a feature @ December 2012, to help Plasma Profilings for more stable measurements)

Plasma displays can benefit from adding an Extra Delay Time before each measurement; it's useful for the panel to have more stable presentation of each pattern. How to Find Out which DIP mode can be used for your display/meter?

To find out which DIP Chapter of my disk isrequiredfor your current display settings / meter settings, you have to use the Meter Time per Patch Finder Chapter of my disk which it displays the darkest colors of the selected LUT resolution and you need to measure these patches to find out which is the correct DIP mode Chapter you will need for your display profiling.

As we know, meters require more time to measure a low luminance color (Dark Patches) and also they can read faster a brighter color patch (With more Luminance). The time it takes for your meter to read the Darkest Color Patches of your selecTED LUT Size is something that you need to take some measurements to find out the max time in xxx ms that will be required.

Image

LightSpace has a feature called Measure & Log.

By Selecting this, you will be prompt to enter a File Name, for Example you can type ''5% Red'' and after clicking ok, the LightSpace will take continuous readingsof the pattern you are displaying, as long time as you want, to stop this , press ‘’Stop Measurement’’...

After doing that, a ‘5% Red.cvs’’ file will be created and you will be able to open it with Excel to see the xyY Readings and the time it took for your meter to read this patch.

(This Measured & Log Mode is something I requested from LightIllusion to Add as a feature @ December 2012, while I was trying to find out a way to use the DIP Mode to by synced with My Disk)

This is an example of the CVS file Data contents:

Image

Here you can see the exact time it took to read the 5% Red of my KURO, with my iD3 (I have selected 1.5sec Intergration time).

This is a good way to find out and set your Meter Intergration Time, by checking the repeatability of any patch, and compare 2-3 different Intergration time settings (1sec. 1.25sec, 1.50sec…etc..) to find out which setting have more stable and repeatable xyY measurements.

IMPORTANT DETAIL: Enabling Average Low Light Measurements IS NOT RECOMMENDED TO BE USED WITH MY DISK! Avoid this Low Average Feature because the meter is reading more that one time the same patch (probably it will take 15-40 sec to return a single xyY number)

After you have decided about your Meter Settings, by selecting the Intergration Time and the Display Type (for colorimeters only), you have to spend a few minutes to take some measurements using my Disk’s Meter Time per Patch Finder Chapter.

Example: By Selecting the 17-Point Cube Time per Patch Finder Chapter, you will see this introduction screen..

Image

Here you are able to see the Pattern Order Sequence.

Before each displayed pattern there a notification screen which displays what pattern it will be displayed… so when you will see that 5% Red Info Screen, click Measure and Log... and enter ‘5% Red’ as a file name, to collect data about any measured color.

Image

You have to do this for all the 5% RGBCMY+Gray+Black Patchs to examine later which is the longest meter read with your Current Display Settings.

It’s very important step to keep the Disk-Software Synced during the whole 17-Point Profiling Time.

Image

After you have completed all the required measurements (you will have saved a similar list of measurement files like this one), you have to open each one *.CVS Data

File to find the longest in xxx.ms time it took from you meter to read it.

For example if your Longest in time read is4200ms,add +500ms to this (because LightSpace adds that 500ms internal delay before each reading)…your total max measuring time will be 4700ms… so you will have to use the 5sec DIP mode for your 17-Point Profiling using my Disk.

If you need to add extra additional time of about 1sec, then you can select that from the probe setup window and later select the 6sec DIP mode 17-Point Profiling. (Because 4200ms+500ms+1000ms will need 5700ms).

Be sure you have disabled any Screen Protection, Auto Stand-by mode or your Blu-Ray Player ‘Screen Saver Mode’ during before any Profiling Run.

How the Sync of Ted’s LightSpace CMS Calibration Disk with LightSpace CMS Software Works without user prompt for 17-Point Cube Profilings (4.913 Color Points) is working?

To sync the Ted's LightSpace CMS Calibration Disk played from your Blu-Ray Player with the software it requires ONLY ONE Synced Click from your Notebook Mouse.

My Disk’s DIP Mode Chapters are Starting with a 5 Sec of Chapter Announcement like this one:

(You can check the total chapter time here or from LightSpace software before starting the profiling measurements.)

Image

...A 5sec 'Old Film Like' Countdown with Start,likethis one:

Image

And when you see the last frame.....

Image

You have to click 'OK' the LightSpace Start Measurements Confirmation Window

Image

Click 'OK' to start the measurements or press ‘Enter Key’ from your keyboard (I prefer this for perfect timing)

For the LightSpace users, all chapters are automated with Ted's LightSpace CMS Calibration Disk.

The video below shows the chapter that Klein K-10Ausers can use since it's their meter is so fast; they can use 1 sec per patch only!.

http://youtu.be/fkZSlNFUp7w"]http://youtu.be/fkZSlNFUp7w

* Change the resolution to 1080p and run it at fullscreen.

With this method id3 users can use DIP Mode Chapter with 4 or 5 or 6 sec per Color Patch to perform a 10-Point Cube Calibration in total time between 1 hour - 1hour 40 minutes max, this is something it depends on user display and meter settings.

Image

The LightSpace has a PercentageBar you are able to see your progress...

There is not any other user prompt till the end, After the last Color Patch is being measured, the LightSpace is saving that sesssion of measurements automatically and the same time you will see that image at your TV screen:

Image

CalMAN use with Ted's LightSpace CMS Calibration Disk

The CalMAN Chapters are created based to the exact same pattern order sequence that CalMAN requests them.

The RGB Triplets of each color patch are exact the same as CalMAN Internal Engine works/expects.

None of my disk patterns has a small lettering indicator of which pattern you are viewing; inside or outside the pattern area. (like other calibration disks)

There is a small 2 sec Pattern Info Screen announcement before any Pattern... I have placed the Pattern Info (for example: 100% Red, 30% Gray etc.) at the right side of the screen and not at the center.....

I did that because at the center of your screen you have placed your meter ;)

After the small pattern announcement, you will see the pure pattern, like it was generated from an External Pattern Generator wink.gif

For example to run a 21-Step Grayscale Set @ CalMAN the Pattern AutoAdvance (Or use the provided workflows I'm hooking up my disk users) and select the 21-Step CalMAN Chapter of the disk.

After that each pattern will be displayed for 10 sec from the disk, you will have to click 21 times the Single Read button of CalMAN. When i was using my id3, it worked very good, I used 1 sec delay also before each meter read.

Unfortunately for C6 (which is extra slow @ low end, it will require to pause the 5-10% patches of the disk, but this has to do with the display you are measuring, for LCD/LED maybe will not required)

I have decide 10sec for each patch because these CalMAN/ChromaPure Chapters are mainly for verification purpose, this means a quick read per color, but if someone needs to perform a 1D LUT Calibration, he can do this by using it's pause button.

No need for IR Controlling, The Chapter for CalMAN or ChromaPure are Auto-Changing every 10 sec. to the next required pattern.

For Example to perform a Color Checker Classic Run you have to press 24 mouse clicks for the meter to read; using my workflow below:

Image

I have uploadTED an example video to show how it works.

Each Chapter starts with 5 sec of Chapter Information Details, and after that there is a 2sec pattern announcement to prepare you of what you will measure and 1 sec of black frame and then 10sec for the color patch, if you like you can use your player remote next button to go faster to the next patch or leave it without user prompt to finish the total pattern displaying.

http://youtu.be/3dOg7HafBBw"]http://youtu.be/3dOg7HafBBw

* Change the resolution to 1080p and run it at fullscreen.

ChromaPure use with Ted's LightSpace CMS Calibration Disk

Same as explained at CalMAN infos above.

Each ChromaPure Chapter starts with a 5 sec of Chapter Information Details, and after that there is a 2 sec pattern info announcement before each color patch to prepare you of what you will measure; after that pattern info announcement there is 1 sec of black frame and then 10 sec for the color patch, if you like you can use your player remote next button to go faster to the next color patch.

RGB Triplets from each Color Patch are coming from the exact RGB Triplets that ChromaPure Color Engine Calculations are based.

Each ChromaPure Chapter has the exact pattern order as ChromaPure request it.

Video Example:

Verify Calibration Tools - ChromaPure: 4-Step Amplitude

https://www.youtube.com/watch?v=fbvty56uTIA

* Change the resolution to 1080p and run it at fullscreen.

You can say that CalMAN / ChromaPure intergration with my disk is Semi-automated, since the user will have only to simply perform some single measurements clicks.
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Message » 03 Fév 2014 16:41

bonjour,
depuis la création de ce sujet, il y a une meilleur sonde à acheter? rapport qualité prix pour un vidéoprojecteur.
merci.
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Message » 04 Fév 2014 11:21

Non, toujours la ID3.
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Message » 04 Fév 2014 12:46

ok, merci :)
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Message » 04 Fév 2014 20:06

realzven a écrit:Tu passe une mesure ansi (carré noir carré blanc) et tu mesure le noir et le blanc


Donc si je comprends bien il faut mesurer chaque carré blanc et chaque carré noir ? C'est à priori ce que demande chromapure...

Ca veut dire aussi qu'il faut alors placer la sonde très près de l'écran, au centre de chaque carré ?
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Message » 07 Fév 2014 19:53

Ted's LightSpace calibration disk MP4 sampler

http://www.avsforum.com/t/1454804/teds- ... t_24323548
Ted's LightSpace CMS Calibration Disk - MP4/MKV Media Files Version Sampler

Users they are sking me if the Media Files Version of my Disk is compatible with their players, so I'm uploading here for all a Test Chapter in both formats for those who need to check.

I have include 2 versions of MP4/MKV Files for each CalMAN/ChromaPure or LightSpace Meter Setup Chapters.

One version of the files has 1 File per Chapter and it's encoded with included Chapter Marks informations, if your device is supporting Chapter Marks for MP4/MKV Files then you will be able to change the Chapters using your player remote control left-right buttons, but it has to do with the device you are using, if it supports chapters on MP4 or MKV files or if it handles them as a single file without Chapters.

These files are located in CalMAN/ChromaPure or LightSpace Meter Setup Folders.

The other version of that files are located in subfolders of these directories and it's the splited version of color patches at separate files.

For example, inside the 11-Step Grayscale file folder you will find 11 files; each file per color patch (named as 01. 0% Black , 02. 10% Grey, 03. 20% Gray etc.) and your media player will auto advanced to the next color patch since these files are located in the same folder, but you will able to navigate thou the previous/next pattern using your player remote next-previous buttons.

The loading delay time between each file is expected to be at ~0.1-0.5s range because the file format stays the same.
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