HCFR - Open source projector and display calibration software - Page 184 - AVS | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!


Forum Jump: 
 311Likes
Reply
Thread Tools
post #5491 of 6005 Old 02-18-2015, 04:58 PM
Member
 
ntalwar's Avatar
 
Join Date: Feb 2004
Posts: 70
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 39 Post(s)
Liked: 14
Quote:
Originally Posted by zoyd View Post
Try it with the free measures page displayed and let me know if it retains the selected color.
That works - thanks. In 3.1.6, I was running it with the Gray Scale window and could compare "Y target" to my 10pt changes.
ntalwar is offline  
Sponsored Links
Advertisement
 
post #5492 of 6005 Old 02-18-2015, 05:03 PM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
zoyd is online now  
post #5493 of 6005 Old 02-18-2015, 07:50 PM
Advanced Member
 
WPWoodJr's Avatar
 
Join Date: May 2007
Location: Philadelphia area, PA
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Liked: 16
Quote:
Originally Posted by zoyd View Post
...
Plasmas have similar spectral distributions and cross-talk between the primaries which tend to create a non-linear response in the same portions of the gamut. This color space puts the control points as close as possible to those areas along each of the color axes. I haven't played around with it much so I really don't know if it will do much better than the 75%/75% scheme but in theory it should.
So, would one use the plasma color space to adjust the CMS similar to using REC 709 75/75, then go back to REC 709 for final tweaking?

What is the theoretical basis for this color space?

Samsung PN60F8500, TiVo Roamio, ASRock Vision 3D HTPC, Chromecast
WPWoodJr is offline  
post #5494 of 6005 Old 02-19-2015, 03:30 AM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
Quote:
Originally Posted by WPWoodJr View Post
So, would one use the plasma color space to adjust the CMS similar to using REC 709 75/75, then go back to REC 709 for final tweaking?

What is the theoretical basis for this color space?
Yes, it's like using the 75%/75% color space but now you don't have to go back and forth between primaries settings, you can do any of the saturation or color checker measurements while in the pseudo-color space. The control points are placed in areas where typically there are the largest perceptual errors for plasmas.
WPWoodJr likes this.
zoyd is online now  
post #5495 of 6005 Old 02-19-2015, 03:23 PM
AVS Special Member
 
Geoff D's Avatar
 
Join Date: Mar 2007
Location: Swanage, Engerland
Posts: 2,634
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 264 Post(s)
Liked: 290
Quote:
Originally Posted by zoyd View Post
yes
zoyd, ive got another query regarding correction matrices. I've profiled my CM Display against a CM Photo following Larry's instructions and while I was expecting a difference in the colour values what I didn't expect was a 10 cd/m2 difference in measured light output between each meter. Is that right? Or should they both be measuring light output the same?
Geoff D is offline  
post #5496 of 6005 Old 02-19-2015, 03:53 PM
AVS Special Member
 
LarryInRI's Avatar
 
Join Date: Jun 2007
Location: in RI
Posts: 5,313
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 168
Quote:
Originally Posted by Geoff D View Post
zoyd, ive got another query regarding correction matrices. I've profiled my CM Display against a CM Photo following Larry's instructions and while I was expecting a difference in the colour values what I didn't expect was a 10 cd/m2 difference in measured light output between each meter. Is that right? Or should they both be measuring light output the same?
When profiling the i1 Display Pro colorimeter against an i1 Pro spectrometer, a 3 to 4% difference in measured max output is not unusual.

Larry
Geoff D likes this.
LarryInRI is offline  
post #5497 of 6005 Old 02-19-2015, 04:18 PM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
Quote:
Originally Posted by WPWoodJr View Post
So, would one use the plasma color space to adjust the CMS similar to using REC 709 75/75, then go back to REC 709 for final tweaking?

As a follow-up I did a quick test of this theory and using the optimized control points does yield a slightly better calibration than the 75%/75% points as measured using the 96 point color checker:

75%/75% calibration: dEavg=1.29,max=3.64,worst 10%=2.48
Optimized calibration: dEavg=1.09,max=3.57,worst 10%=2.23

After a bit of fiddling with the color and skin tone controls the final numbers were: dEavg=0.81,max=2.78,worst 10%=1.78

The thick white outline in the graph below shows the optimized control points.





Quote:
Originally Posted by Geoff D View Post
zoyd, ive got another query regarding correction matrices. I've profiled my CM Display against a CM Photo following Larry's instructions and while I was expecting a difference in the colour values what I didn't expect was a 10 cd/m2 difference in measured light output between each meter. Is that right? Or should they both be measuring light output the same?
It's not unusual to see 10% variations between colorimeter and spectrometer measurements of total luminance Y. It will have no effect on your color calibration because everything gets normalized by this value so patterns and targets are always between 0 and 1, independent of the peak white measured.
Geoff D and WPWoodJr like this.
zoyd is online now  
post #5498 of 6005 Old 02-19-2015, 04:20 PM
AVS Special Member
 
Geoff D's Avatar
 
Join Date: Mar 2007
Location: Swanage, Engerland
Posts: 2,634
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 264 Post(s)
Liked: 290
Quote:
Originally Posted by LarryInRI View Post
When profiling the i1 Display Pro colorimeter against an i1 Pro spectrometer, a 3 to 4% difference in measured max output is not unusual.

Larry
Mine's more like 11%. The same 100% screen reads as 134 cd/m2 with my CM Display but 120 cd/m2 with my CM Photo. I'm sure I did the calibration correctly on the Photo before taking the RGBW measures but maybe I should do it again, I dunno.

Would selecting high resolution mode on the HCFR meter properties screen for the Photo have changed the light sensitivity that much?
Geoff D is offline  
post #5499 of 6005 Old 02-19-2015, 04:24 PM
AVS Special Member
 
Geoff D's Avatar
 
Join Date: Mar 2007
Location: Swanage, Engerland
Posts: 2,634
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 264 Post(s)
Liked: 290
Quote:
Originally Posted by zoyd View Post
It's not unusual to see 10% variations between colorimeter and spectrometer measurements of total luminance Y. It will have no effect on your color calibration because everything gets normalized by this value so patterns and targets are always between 0 and 1, independent of the peak white measured.
Thanks, I hadn't seen your reply before replying to Larry above. But which one is correct then? As well as colour calibration all the TV reviewers bang on about hitting 120 cd/m2 and I'd like to make sure that I'm doing so with a high degree of accuracy.
Geoff D is offline  
post #5500 of 6005 Old 02-19-2015, 04:31 PM
Advanced Member
 
WPWoodJr's Avatar
 
Join Date: May 2007
Location: Philadelphia area, PA
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Liked: 16
Quote:
Originally Posted by zoyd View Post
No problem in increasing it other than the total time to complete the sweep will increase. You could bump it up to 350 ms to provide a little more of a cushion.
I have this issue too. When I do a complete saturation sweep, sometimes the 0% will be way off (over 2 dE) for example for green, but when I do just the green sweep, the dE is very low. My latency time is at 250. I'll try a higher value.

Samsung PN60F8500, TiVo Roamio, ASRock Vision 3D HTPC, Chromecast

Last edited by WPWoodJr; 02-19-2015 at 07:41 PM.
WPWoodJr is offline  
post #5501 of 6005 Old 02-19-2015, 04:41 PM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
Quote:
Originally Posted by Geoff D View Post
Thanks, I hadn't seen your reply before replying to Larry above. But which one is correct then? As well as colour calibration all the TV reviewers bang on about hitting 120 cd/m2 and I'd like to make sure that I'm doing so with a high degree of accuracy.
120 cd/m^2 is not a magic number but the CM display is probably closer to the correct value, I've noticed the CM spectrometers tend to measure total Y low.
Geoff D likes this.
zoyd is online now  
post #5502 of 6005 Old 02-19-2015, 05:42 PM
Advanced Member
 
WPWoodJr's Avatar
 
Join Date: May 2007
Location: Philadelphia area, PA
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Liked: 16
Quote:
Originally Posted by zoyd View Post
As a follow-up I did a quick test of this theory and using the optimized control points does yield a slightly better calibration than the 75%/75% points as measured using the 96 point color checker:
Great, can't wait to try it!

Samsung PN60F8500, TiVo Roamio, ASRock Vision 3D HTPC, Chromecast
WPWoodJr is offline  
post #5503 of 6005 Old 02-19-2015, 07:49 PM
Advanced Member
 
WPWoodJr's Avatar
 
Join Date: May 2007
Location: Philadelphia area, PA
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Liked: 16
Quote:
Originally Posted by WPWoodJr View Post
I have this issue too. When I do a complete saturation sweep, sometimes the 0% will be way off (over 2 dE) for example for green, but when I do just the green sweep, the dE is very low. My latency time is at 250. I'll try a higher value.
I upped latency to 500 ms and it didn't help. When I do a full primary and secondary saturation sweep, the 0% reading can be way different, for example here is green:


And here is just doing a green sweep immediately after the full sweep:


I also tried averaging and latency at 1000. Integration time was Best 0.5

Any ideas what's going on?
Attached Thumbnails
Click image for larger version

Name:	green full sweep.PNG
Views:	390
Size:	18.1 KB
ID:	556689   Click image for larger version

Name:	green only.PNG
Views:	392
Size:	42.6 KB
ID:	556697  

Samsung PN60F8500, TiVo Roamio, ASRock Vision 3D HTPC, Chromecast
WPWoodJr is offline  
post #5504 of 6005 Old 02-19-2015, 08:00 PM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
zoyd is online now  
post #5505 of 6005 Old 02-19-2015, 08:34 PM
AVS Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 5,722
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 641 Post(s)
Liked: 449
Quote:
Originally Posted by WPWoodJr View Post
I have this issue too.
Is your meter pressed up against the screen or held in front of it by a few inches?

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
LastButNotLeast is offline  
post #5506 of 6005 Old 02-19-2015, 08:44 PM
Advanced Member
 
WPWoodJr's Avatar
 
Join Date: May 2007
Location: Philadelphia area, PA
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Liked: 16
Quote:
Originally Posted by zoyd View Post
There's no significant difference between them, probably normal panel variations
But this happens every time... do a full primary/secondary saturation sweep, get a 1.7 dE green 0% reading. Then just do green saturation sweep, 1.0 dE reading. This happens with iD3 and with ColorMunki, although numbers are slightly different.

By the way, my monitor is the TV so I'm running the HCFR interface on the TV, in case that is relevant.

Samsung PN60F8500, TiVo Roamio, ASRock Vision 3D HTPC, Chromecast
WPWoodJr is offline  
post #5507 of 6005 Old 02-19-2015, 08:51 PM
Advanced Member
 
WPWoodJr's Avatar
 
Join Date: May 2007
Location: Philadelphia area, PA
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Liked: 16
Quote:
Originally Posted by LastButNotLeast View Post
Is your meter pressed up against the screen or held in front of it by a few inches?
Either way, same result.

Samsung PN60F8500, TiVo Roamio, ASRock Vision 3D HTPC, Chromecast
WPWoodJr is offline  
post #5508 of 6005 Old 02-19-2015, 09:10 PM
AVS Special Member
 
LarryInRI's Avatar
 
Join Date: Jun 2007
Location: in RI
Posts: 5,313
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Liked: 168
zoyd,

You're sending mixed messages to the new calibrators among us.


Quote:
Originally Posted by zoyd View Post
As a follow-up I did a quick test of this theory and using the optimized control points does yield a slightly better calibration than the 75%/75% points as measured using the 96 point color checker:

75%/75% calibration: dEavg=1.29,max=3.64,worst 10%=2.48
Optimized calibration: dEavg=1.09,max=3.57,worst 10%=2.23

After a bit of fiddling with the color and skin tone controls the final numbers were: dEavg=0.81,max=2.78,worst 10%=1.78
and

Quote:
Originally Posted by zoyd View Post
There's no significant difference between them, probably normal panel variations
concerning a difference of 0.7 dE in measured values.


Larry
LarryInRI is offline  
post #5509 of 6005 Old 02-20-2015, 04:36 AM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
Quote:
Originally Posted by WPWoodJr View Post
But this happens every time... do a full primary/secondary saturation sweep, get a 1.7 dE green 0% reading. Then just do green saturation sweep, 1.0 dE reading. This happens with iD3 and with ColorMunki, although numbers are slightly different.

By the way, my monitor is the TV so I'm running the HCFR interface on the TV, in case that is relevant.
If you get repeatable differences then yes you can call it statistically significant but at less than 1 dE it's not visually significant. The thing with plasmas is that you will get these kind of differences depending on what the sequence of patterns are because the luminance displayed depends a bit on what the prior patch was and this difference is largest for bright patches. That's why in all my comparisons the patch sequences are identical so that variable is removed.

I repeated your experiment and found the following averages:

difference between 0% green in primary sequence vs. standalone sweep was 0.48 dE when using a moving gradient pattern prior to the sweeps and 0.6 dE when using a black background prior to the sweeps. So the difference tightened up a bit when the 0% green pattern was preceded by a scrolling gradient rather than black background. If you compare the same sequence to itself the differences are generally 0.1-0.2 dE just due to probe and/or panel noise. You may find that these numbers will vary depending on plasma model, age, and pattern level.

Quote:
Originally Posted by LarryInRI View Post
zoyd,

You're sending mixed messages to the new calibrators among us.
ok, to be clear then - The expected behavior of using the optimized (for plasma) color space was confirmed and a statistically significant reduction in overall color error was achieved. It is not expected that this reduction will provide any visual benefit to your calibration.
WPWoodJr likes this.

Last edited by zoyd; 02-20-2015 at 05:07 AM.
zoyd is online now  
post #5510 of 6005 Old 02-20-2015, 08:16 AM
AVS Special Member
 
LastButNotLeast's Avatar
 
Join Date: Feb 2007
Location: 08077
Posts: 5,722
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 641 Post(s)
Liked: 449
Quote:
Originally Posted by zoyd View Post
It is not expected that this reduction will provide any visual benefit to your calibration.
But we get BETTER NUMBERS!

Did you really need to quote that entire post in your reply?
Downloadable FREE demo discs: Demonstration Blu-Ray Discs (Independently Authored)
Welcome to AVS - Get out while you still can!
LastButNotLeast is offline  
post #5511 of 6005 Old 02-20-2015, 09:12 AM
Advanced Member
 
WPWoodJr's Avatar
 
Join Date: May 2007
Location: Philadelphia area, PA
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Liked: 16
Quote:
Originally Posted by zoyd View Post
If you get repeatable differences then yes you can call it statistically significant but at less than 1 dE it's not visually significant. The thing with plasmas is that you will get these kind of differences depending on what the sequence of patterns are because the luminance displayed depends a bit on what the prior patch was and this difference is largest for bright patches. That's why in all my comparisons the patch sequences are identical so that variable is removed.
In my case I have the HCFR interface taking up a large portion of the screen prior to running sweeps. So during the full sweep, the TV is displaying fully saturated red prior to 0% green. Prior to the green sweep, the TV is displaying about 75% white, 25% black. Would the full sweep (1.7 dE) be more accurate for 0% green because the red patch is darker (running with 12%/35% APL windows)? I wouldn't have thought so based on my white balance measures.

It seems like this variance could be removed through averaging, or waiting before taking the reading, or something? Or does the image not change (for measurement purposes) once it is displayed, and keeps the variance which it inherited from the prior patch?

Samsung PN60F8500, TiVo Roamio, ASRock Vision 3D HTPC, Chromecast
WPWoodJr is offline  
post #5512 of 6005 Old 02-20-2015, 10:56 AM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
The best way to reduce the variance is to periodically insert a white reference and then correct for any drift, ArgyllCMS has this capability. In any case I've never seen where the variances were large enough that it would lead you to actually change a setting on the display if it when compensated.
zoyd is online now  
post #5513 of 6005 Old 02-21-2015, 03:13 PM
Member
 
MrGoomba's Avatar
 
Join Date: Nov 2011
Posts: 132
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 83 Post(s)
Liked: 18
need a bit of help. I got an awesome calibration with my f8500 so I thought I knew what i was doing until....


Im tryin to calibrate my ben1 1070. Greyscale no issues... but this dang cms. It uses Hue, Gain, Saturation which Iv never done before. I have no idea how to measure this or what adjustments to make. can anyone help?
MrGoomba is offline  
post #5514 of 6005 Old 02-21-2015, 03:40 PM
Advanced Member
 
WPWoodJr's Avatar
 
Join Date: May 2007
Location: Philadelphia area, PA
Posts: 918
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Liked: 16
Quote:
Originally Posted by zoyd View Post
The best way to reduce the variance is to periodically insert a white reference and then correct for any drift, ArgyllCMS has this capability. In any case I've never seen where the variances were large enough that it would lead you to actually change a setting on the display if it when compensated.
Today the green 0% is varying from 2.8 dE on a full sweep to 0.2 dE on just a green sweep.

Samsung PN60F8500, TiVo Roamio, ASRock Vision 3D HTPC, Chromecast
WPWoodJr is offline  
post #5515 of 6005 Old 02-21-2015, 04:15 PM
Member
 
thepiecesfit's Avatar
 
Join Date: Mar 2007
Posts: 124
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Liked: 11
Quote:
Originally Posted by MrGoomba View Post
need a bit of help. I got an awesome calibration with my f8500 so I thought I knew what i was doing until....


Im tryin to calibrate my ben1 1070. Greyscale no issues... but this dang cms. It uses Hue, Gain, Saturation which Iv never done before. I have no idea how to measure this or what adjustments to make. can anyone help?
If you are using an AVS HD 709 disk you can use the 100% saturation window patterns and use the continuous measurements in HCFR to read Red, Green, Blue, yellow, Cyan, Magenta and white. While the continuous measurements are running you can switch to the CIE Diagram and you will see where the color falls on the chart. Try to get close to the x and y coordinates below. Look at the attached chart it gives you an idea of where to increase hue/saturation to move the points on the x and y axis. Once you get close go back to Measure tab and choose the Primaries and Secondaries view. This will allow you to see the specific x / y values. The delta luminance would probably be controlled by your Gain setting. There you want to be as close to 0% as possible and you can see that on the same Primaries and Secondaries view ( you might need to hit the down arrow on editable data to see this line). Once all the free measures are close you can do a sweep measure of primaries and secondaries to get the delta E. This will give you all the values. Try to get delta E < 3 if at all possible. Good luck!

HDTV - REC 709:
Red primary: x=0.640 / y=0.330
Green primary: x=0.300 / y=0.600
Blue primary: x=0.150 / y=0.060
Yellow secondary: x=0.419 / y=0.505
Cyan secondary: x=0.225 / y=0.329
Magenta secondary: x=0.321 / y=0.154
Attached Thumbnails
Click image for larger version

Name:	CIE.png
Views:	52
Size:	301.5 KB
ID:	559865  
jhughy2010 likes this.
thepiecesfit is offline  
post #5516 of 6005 Old 02-21-2015, 04:22 PM
Member
 
MrGoomba's Avatar
 
Join Date: Nov 2011
Posts: 132
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 83 Post(s)
Liked: 18
This is what I was doing, but changing my hue gain and saturation was not changing any of the the readings
MrGoomba is offline  
post #5517 of 6005 Old 02-21-2015, 05:32 PM
Member
 
thepiecesfit's Avatar
 
Join Date: Mar 2007
Posts: 124
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Liked: 11
Quote:
Originally Posted by MrGoomba View Post
This is what I was doing, but changing my hue gain and saturation was not changing any of the the readings
Believe there may have been an issue or two with the latest release and reading primaries and secondaries. I'm still on HCFR 3.1.6 and it works great for me.
thepiecesfit is offline  
post #5518 of 6005 Old 02-21-2015, 05:38 PM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
zoyd is online now  
post #5519 of 6005 Old 02-22-2015, 12:16 PM
Senior Member
 
Make73's Avatar
 
Join Date: Jan 2010
Location: Finland
Posts: 216
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 21
How about delta luminance with 3.1.8 ?

You can download measures from HERE

btw, made some test with different measuring points with Samsung UE75H6475
calibrated at center and measured ANSI 16 positions
calibrated at position 16 and measured ANSI 15 and center positions
Download measures from HERE

Also tried measure from different distances, those measures are HERE

Screen uniformity is pretty good for LCD set but don´t know which would be best way to calibrate it, maby at one of those 17 points, projector mode or what
Attached Thumbnails
Click image for larger version

Name:	dL red primary.jpg
Views:	40
Size:	49.1 KB
ID:	561009   Click image for larger version

Name:	dL red saturation 100.jpg
Views:	37
Size:	27.4 KB
ID:	561017  

Last edited by Make73; 02-22-2015 at 12:23 PM.
Make73 is offline  
post #5520 of 6005 Old 02-22-2015, 01:24 PM - Thread Starter
AVS Special Member
 
zoyd's Avatar
 
Join Date: Sep 2006
Location: Planet Dog
Posts: 5,612
Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 814 Post(s)
Liked: 714
Quote:
Originally Posted by Make73 View Post
How about delta luminance with 3.1.8 ?
Thanks, I'll check it out. By the way, which patterns did you run and in what sequence, it looks like they are 75% stimulus for the primaries correct?
zoyd is online now  
Sponsored Links
Advertisement
 
Reply Display Calibration

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off