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The Official ChromaPure thread - Page 161

post #4801 of 5348
Quote:
Originally Posted by timescape7 View Post

So a lumagen processor needs to be permanently installed in the setup? Or is it just a one time calibrating process?
It has to stay in the signal chain.
post #4802 of 5348
FYI, I just substantially edited the Gamma article on the ChromaPure web site, adding additional material about BT.1886 and clearing up some myths. This color science article was hopelessly out of date and should have been updated some time ago.
post #4803 of 5348
Quote:
Originally Posted by TomHuffman View Post

FYI, I just substantially edited the Gamma article on the ChromaPure web site, adding additional material about BT.1886 and clearing up some myths. This color science article was hopelessly out of date and should have been updated some time ago.

This is great Tom -- very informative.

Is there a tutorial anywhere on how to do BT.1886 with ChromaPure+Lumagen+advanced autocal? I'm having some trouble with gamma and I'll be working on my calibration later this week.
post #4804 of 5348
Quote:
Originally Posted by ScottJ View Post

Is there a tutorial anywhere on how to do BT.1886 with ChromaPure+Lumagen+advanced autocal? I'm having some trouble with gamma and I'll be working on my calibration later this week.
Help, The Calibration Process, Auto-Calibrate, Using Auto-Calibrate, BT.1886 Gamma
post #4805 of 5348
Lumagen Radiance XE/XE+/XE3D/XE/XE+/XE3D/Mini-3D/XD/XD3D + Radiance 20XX Series (2021, 2022, 2041, 2042) New 100113 Firmware Update

Release Notes

Fixes issue causing slow or no detection of hdmi sources using negative polarity (fairly unusual). Several audio issues fixed.

Download Link
post #4806 of 5348
I have done my calibration on a Samsung 51F8500 Plasma 4 times since I received the Chromapure software, and today I received the Accupel DVG 50000 and rerun the Calibration using it. Everytime I am getting crushed Blacks Big time. I even ran a Autocal thru a DVDO Duo same thing. What the hell am I doing wrong ? Everything checks out good on the computer. I have all equipment set to RGB, Rec709 and using a gamma of 2.2 all hooked up HDMI. I ran small windows and then large ones. I wouldn't ask cause I would of thought it was just me. Until I ran the Autocal thru the Duo and same thing. Using a brand new calibrated i1 Pro 3 meter.
I check Contrast and Brightness both times with a Test disc and then the accupel before running the Auto Calibrate.
Got any Ideas anybody ?
post #4807 of 5348
Quote:
Originally Posted by Glenee View Post

I have done my calibration on a Samsung 51F8500 Plasma 4 times since I received the Chromapure software, and today I received the Accupel DVG 50000 and rerun the Calibration using it. Everytime I am getting crushed Blacks Big time. I even ran a Autocal thru a DVDO Duo same thing. What the hell am I doing wrong ? Everything checks out good on the computer. I have all equipment set to RGB, Rec709 and using a gamma of 2.2 all hooked up HDMI. I ran small windows and then large ones. I wouldn't ask cause I would of thought it was just me. Until I ran the Autocal thru the Duo and same thing. Using a brand new calibrated i1 Pro 3 meter.
I check Contrast and Brightness both times with a Test disc and then the accupel before running the Auto Calibrate.
Got any Ideas anybody ?
You need to post some data. A calibration report, for example. Make sure that the Samsung's HDMI Black level is set to "Low". Make sure that the Duo's Input and Output Setup Video Level is set to "Video". If you do that and brightness and gamma are set correctly you won't have crushed blacks.
post #4808 of 5348
Couldn't see any mention of CP being compatible with windows 8. Does anyone know if it is? :-)

Sent from my GT-I9100 using Tapatalk 2
post #4809 of 5348
Quote:
Originally Posted by T0ne View Post

Couldn't see any mention of CP being compatible with windows 8. Does anyone know if it is? :-)

Sent from my GT-I9100 using Tapatalk 2
Yes, it is.
post #4810 of 5348
Quote:
Originally Posted by Glenee View Post

I have done my calibration on a Samsung 51F8500 Plasma 4 times since I received the Chromapure software, and today I received the Accupel DVG 50000 and rerun the Calibration using it. Everytime I am getting crushed Blacks Big time.

You mention a computer. Is that used as a source for the display? I.e as a HTPC? If using a computer the HDMI input on the TV needs to be set in High, Full or PC (or whatever lingo Samsung uses, i.e level 0-255). The video decoders and the graphics card drivers (such as Nvidia) may have video level settings as well that influence the final video levels.

If you are using a DVD or BluRay etc as input hawever and get crushed blacks, then I don't know. HDMI is always uses low or "limited", i.e 16-235 video-levels and that is the "normal". If this is the case maybe you have calibrated to the wrong levels as Tom suggested.
post #4811 of 5348
Hi,

I am having serious trouble getting my calibrations right. They always come out too warm in the lower IREs. The higher IRE seems pure white to me. I have done several runs on a Panasonic VT30 plasma and on a projector and the problems are the same there too. I am beginning to suspect my Display 3 pro for not being linear. Is there some way to confirm this? Is this a known problem? Or is my PRO-calibration just a bit off? I got it from Kalibrate in the UK.

I use a panasonic higer-end BluRay with Ryan Masciola's calibration disc (all setting to normal for pure video levels). I also tried the built-in signal generator and tried the grayscale tracking with both methods. They are spot on equal so there is probably not a problem with the pattern source.

Hmm. Should also add the fact that I used the same meter with ArgyllCMS which is an excellent profiling software for computer displays. I ran a calibration on my computer screen and that calibration was just fine. Strange...
Edited by Barsk - 10/18/13 at 12:07am
post #4812 of 5348
By the way, thumbs up for the improved readbility on plasmas with the later versions of Chromapure. A significant improvement!
It was driving me nuts with the earlier handling with readings jumping randomly all the time even with smoothing on...
post #4813 of 5348
Quote:
Originally Posted by Glenee View Post

I have done my calibration on a Samsung 51F8500 Plasma 4 times since I received the Chromapure software, and today I received the Accupel DVG 50000 and rerun the Calibration using it. Everytime I am getting crushed Blacks Big time. I even ran a Autocal thru a DVDO Duo same thing. What the hell am I doing wrong ? Everything checks out good on the computer. I have all equipment set to RGB, Rec709 and using a gamma of 2.2 all hooked up HDMI. I ran small windows and then large ones. I wouldn't ask cause I would of thought it was just me. Until I ran the Autocal thru the Duo and same thing. Using a brand new calibrated i1 Pro 3 meter.
I check Contrast and Brightness both times with a Test disc and then the accupel before running the Auto Calibrate.
Got any Ideas anybody ?



You might also want to touch base in your display's thread to be sure that there isn't some odd setting that you have to turn off to do a calibration such as a dynamic brightness control.
post #4814 of 5348
I will check all this before my next Calibration session. Thanks for the Help from all.
post #4815 of 5348
Quote:
Originally Posted by T0ne View Post

Couldn't see any mention of CP being compatible with windows 8. Does anyone know if it is? :-)

Sent from my GT-I9100 using Tapatalk 2
Yes it is and it works very well with it. I am a Apple guy and had to purchase a cheap Laptop just to run this software. I have had No Major Problems any where, except in the ability of the OPERATOR.
post #4816 of 5348
Tom, What happened to the Tool Strip button for Operating the DVDO Duo Manual Adjustments ?
post #4817 of 5348
Quote:
Originally Posted by Glenee View Post

Tom, What happened to the Tool Strip button for Operating the DVDO Duo Manual Adjustments ?
What happened to it? Nothing. You have to click the little icon to the left of the Signal Generator drop-down (View, Toolbars, Signal Generators).
post #4818 of 5348
Quote:
Originally Posted by TomHuffman View Post

What happened to it? Nothing. You have to click the little icon to the left of the Signal Generator drop-down (View, Toolbars, Signal Generators).
Thanks Tom. Everything is at the office and can't check now. I had watched the Video on your website and it showed it right center ( last Tab going left to Right) of the toolbar. I will look more intensely on the left side when I get back to the office.
post #4819 of 5348
Hello Tom,

Do you have any specs on profiling a K10-A with a I pro 2 and a Jeti 1201 Luminance only and do you think there would be a visual benefit using the Jeti over the I1Pro. ?

For calibrating large LUT for flat screens (Plasma, LCD, OLED) or projectors, would there be any benefit in getting the full Jeti 1201 over the Luminance only.?

Thanks,

ss
post #4820 of 5348
Quote:
Originally Posted by sillysally View Post

Do you have any specs on profiling a K10-A with a I pro 2 and a Jeti 1201 Luminance only and do you think there would be a visual benefit using the Jeti over the I1Pro. ?

For calibrating large LUT for flat screens (Plasma, LCD, OLED) or projectors, would there be any benefit in getting the full Jeti 1201 over the Luminance only.?
I am not sure what you mean by "specs" in this context.
Yes, I do.
Not really. The only thing you lose with a luminance-only JETI is the ability to read directly from a projector lens. If you are using a K-10, then you have the most sensitive colorimeter on the market, so reading from the lens would be unnecessary.
post #4821 of 5348
Guys,

I just bought a Sony VPL-VW1000 projector. The first thing I always do when I calibrate my projector is make sure the contrast and brightness are set correctly. I always do this by putting up a black clipping test pattern for the brightness and white clipping pattern for the contrast (from the AVS709 disc). I first adjust the brightness and after that the contrast.

For the contrast I raise the contrast level to the point where I can still see 230-234 flash. But I just got a reply in the official VW1000 topic that changing the contrast does not only affect the bright parts of the greyscale but also affects the individual color channels. From what I ve been told the individual color channels will clip BEFORE the white will clip. So am I correct that I need to check the color clipping FIRST and only AFTER that look if the white does not clip?

If I m right with the above, HOW do I exactly check the color clipping (with the AVS709 dics)?
post #4822 of 5348
^^^^^^^^
I would use your meter to measure White Balance while adjusting Contrast, when one of the colour channels begins to clip it will show up as a significant imbalance in the channels. That should tell you the max value of contrast that is possible, but then you need to follow the other golden rules of contrast:-
No clipping, no crushing, no eye fatigue - hopefully with new PJ you should end up well below the max setting, with a great picture.
Regards, Mike.
post #4823 of 5348
Quote:
Originally Posted by AV_mike View Post

^^^^^^^^
I would use your meter to measure White Balance while adjusting Contrast, when one of the colour channels begins to clip it will show up as a significant imbalance in the channels. That should tell you the max value of contrast that is possible, but then you need to follow the other golden rules of contrast:-
No clipping, no crushing, no eye fatigue - hopefully with new PJ you should end up well below the max setting, with a great picture.
Regards, Mike.
Thanks for your reply. Can you specifically tell me HOW to do this with my i1Display Pro III meter and the latest version of CP?
post #4824 of 5348
Quote:
Originally Posted by sanderdvd View Post

Thanks for your reply. Can you specifically tell me HOW to do this with my i1Display Pro III meter and the latest version of CP?
There are test patterns for testing clipping of individual color channels, though I am not sure that AVSHD has them. It doesn't really matter. In my opinion, it is more important to have adequate light output than a complete lack of color clipping. Film is a relatively dark medium and the amount of content that will contain an individual color near the limit of 100% video is infinitesimally small. Turning contrast down to get a better test pattern response on these will negatively influence image impact by substantially lowering luminance.

  1. Display a white clipping test pattern.
  2. Adjust contrast upwards until the pattern clips ABOVE video white (not 230-234). I'd adjust contrast so that I could see at least a 102% bar, which is 240, or even a 104% bar, which is 245.
  3. Once you have found the clipping point for the contrast control, display a 100% full field test pattern and adjust the manual iris to get reference-level output, which is 48 cd/m2.
  4. Open the White Balance module and put into Continuous mode.
  5. If you can get a good white balance at 100% by adjusting the RGB Gain controls, then fine. If not, then lower contrast until good white balance is restored. This will require you to open up the iris some to reclaim some of the lost light.
  6. Once you have no clipping at 102%-104%, 48 cd/m2 output, and good white balance at 100% you are done.
post #4825 of 5348
tnks for your reply Tom.

In my setup 234+ never flashes, no matter how high or low I set my contrast. Only 230-234 flash. Maybe you can tell me if this is due to my (rare) setup or if something else is wrong:

I use a HTPC with the following settings:

Media Player Classic with madVR as renderer set to 0-255
AMD HD7950 GPU set the RGB Full Range output (0-255)
Sony VPL-VW1000ES projector with HDMI Range set to FULL

What you think of this calibration I did?:

D65.jpg

color_50.jpg
post #4826 of 5348
Thanks for update. JJ:D
Quote:
Originally Posted by ConnecTEDDD View Post

Lumagen Radiance XE/XE+/XE3D/XE/XE+/XE3D/Mini-3D/XD/XD3D + Radiance 20XX Series (2021, 2022, 2041, 2042) New 100113 Firmware Update

Release Notes

Fixes issue causing slow or no detection of hdmi sources using negative polarity (fairly unusual). Several audio issues fixed.

Download Link
post #4827 of 5348
Quote:
Originally Posted by TomHuffman View Post

FYI, I just substantially edited the Gamma article on the ChromaPure web site, adding additional material about BT.1886 and clearing up some myths. This color science article was hopelessly out of date and should have been updated some time ago.

Thanks, good read.
post #4828 of 5348
Quote:
Originally Posted by sanderdvd View Post

tnks for your reply Tom.

In my setup 234+ never flashes, no matter how high or low I set my contrast. Only 230-234 flash. Maybe you can tell me if this is due to my (rare) setup or if something else is wrong:

I use a HTPC with the following settings:

Media Player Classic with madVR as renderer set to 0-255
AMD HD7950 GPU set the RGB Full Range output (0-255)
Sony VPL-VW1000ES projector with HDMI Range set to FULL

What you think of this calibration I did?:

D65.jpg

color_50.jpg
This has something to do with your HTPC setup, which I am not familiar with. Your system is not passing whiter than white.
post #4829 of 5348
Set madVR to 16-235 otherwise it will clip wtw/btb (and leave GPU in full range)
post #4830 of 5348
Hi Tom,

checkerReport.xls and checkerReport2007 can be opened in Protected View only, in contrast with customReport.xls and customReport2007.xls. Fresh install, latest version, licensed user. After running checker report from CP, or from install folder/Reports/checker.exe (checker2007.exe), data are NOT updated from checker.csv.
I found this when calibrating two session, I got two identical color checker reports - 100% identical data (I mean data sheet) which I believe is impossible. Seems like *.xls are locked and filled with your session data....

Also, I started new session, I have deleted checker.csv and without any measure I run checker report from CP. I got report filled with the same values as above...
Edited by prsut - 10/27/13 at 11:43am
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