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HCFR - Open source projector and display calibration software - Page 99

post #2941 of 3436
Quote:
Originally Posted by vega509 View Post

its been a while, I'm tying to catch up here. the last version I worked with was 3.0.4.2. I have updated to 3.1.0.4, the last I believe. I see this is not backward computable for the chc files created in previous versions. Does anyone know if there is a quick way to convert the files? the error I receive is "unexpected file format".

I also see that Gray Scale dE handling and White Reference weighting are added to advanced settings, but are grayed out. Is this by design, or has my update gone awry somehow.

hope everyone had a great holiday.
thanks
To enable the grayscale dE handling options go to the drop down menu above and change it off of "recommended" to the dE formula which you want to use. Recommended is equivalent to CIE76 for grayscale (no Y in dE calculation) and CIE2000 for colors.
post #2942 of 3436
Quote:
Originally Posted by 10k View Post


To enable the grayscale dE handling options go to the drop down menu above and change it off of "recommended" to the dE formula which you want to use. Recommended is equivalent to CIE76 for grayscale (no Y in dE calculation) and CIE2000 for colors.


got it. thanks 10k.

 

any ideas on converting the chc files?

post #2943 of 3436
Thread Starter 
HCFR updated to version 3.1.0.5
  • Added BT.1886 reference luminance plots for gray scale, near black and near white sequences
  • Added perceptual L* option for luminance plots
post #2944 of 3436
Thread Starter 
Quote:
Originally Posted by vega509 View Post


got it. thanks 10k.

any ideas on converting the chc files?

I think if you open the file after having set DVD manual (instead of view images) as the generator in your preferences it will load. Then save it and it will update. If that doesn't work you can send it to me and I'll convert it.
post #2945 of 3436
Quote:
Originally Posted by zoyd View Post


I think if you open the file after having set DVD manual (instead of view images) as the generator in your preferences it will load. Then save it and it will update. If that doesn't work you can send it to me and I'll convert it.


thanks zoyd, worked like a charm.

post #2946 of 3436
First of all, i 'd like to congratulate both zoyd and John for all the energy and effort on reviving the HCFR project. Your contribution guys is very well appreciated!!smile.gif

Now, my question is this...

I used in the past some new versions of the software but i had had no luck on getting it work with my i1pro (REV A). Is there a stable version that solved the installation problems with the i1pros? And if so, which version is it?
post #2947 of 3436
Last version work with the i1 pro
post #2948 of 3436
Hi, in the newer versions of HCFR it asks for the i1 pro to be put on its reference white base thing. When I bought my i1 pro from ebay, it didn't come with the base, but as I'm never going to use it for printing I thought it wouldn't matter, anyway I've looked at the newer versions and like all the new features, but now I can't use my i1 pro without having to uninstall and use an older version.
post #2949 of 3436
Quote:
Originally Posted by realzven View Post

Last version work with the i1 pro

Thanks a lot!smile.gif
post #2950 of 3436
Thread Starter 
Quote:
Originally Posted by 22point8 View Post

Hi, in the newer versions of HCFR it asks for the i1 pro to be put on its reference white base thing. When I bought my i1 pro from ebay, it didn't come with the base, but as I'm never going to use it for printing I thought it wouldn't matter, anyway I've looked at the newer versions and like all the new features, but now I can't use my i1 pro without having to uninstall and use an older version.

I can modify the behavior so that it falls back to just a dark current offset calibration if the white tile fails, might not get to it for a couple of days.
post #2951 of 3436
Cool! Thanks.
post #2952 of 3436
Hey guys,

Could you comment on this? First time calibrating a LED TV. My grayscale (RGB) is off the chart for blue and red.

Do I need to check my settings?






[/ATTACHMENT]
post #2953 of 3436
most likely wrong color temperature setting ("normal", or "cool"). go into your menus and try and find "color temperature" or "color tone" or something and set it to warm or warm2 if available.
post #2954 of 3436
Thanks. I will play around with the temp modes.

Also, I have a bit of a yellowish tint particularly around the eyes. How do I adjust this? Play with Tint modes?

Sent from my LG-E970 using Tapatalk 2
post #2955 of 3436

when using the "Measures / Sensor/ Select ..." to choose a meter this dialog appears

 

 

if the option "Do not use a meter correction file" is chosen, the dialog to the right mentions a spectral sample that can be chose in the next dialog. pressing OK just closes the window. has this been removed?

 

also the "Measures / Sensor/ Configure ..." dialog has the "Display Type" greyed out. Is this correct?

 

I have uninstalled/reinstalled HCFR 3.1.0.5 but still have these anomalies.

 

thanks

post #2956 of 3436
I think you need to rotate the ambient measurement diffusor to the direct measurement position to allow HCFR to offer display type selection ...also you REALLY need to quit all X-rite software including the tray service...
post #2957 of 3436
Zoyd,the spectral loading is behaving wonky with the new build.

When I would start a calibration the spectrals are there and then when I go to start a new one they are missing.Its behaving like it did in the test build.

I uninstall,re-install a few times and even restarted my pc but issue was still present.
post #2958 of 3436
Thread Starter 
Quote:
Originally Posted by PeterLewis View Post

Zoyd,the spectral loading is behaving wonky with the new build.

When I would start a calibration the spectrals are there and then when I go to start a new one they are missing.Its behaving like it did in the test build.

I uninstall,re-install a few times and even restarted my pc but issue was still present.

Can you post screen shots? None of the meter handling code has changed.
post #2959 of 3436
Quote:
Originally Posted by zoyd View Post

Can you post screen shots? None of the meter handling code has changed.

zoyd,the problem is resolved.

Windows was updating in the background when i was messing about and it was giving me issues with the spectrals loading,now that things have settled things are back to normal.

I will keep you informed if other issues show up.

Thanks.
post #2960 of 3436
Quote:
Originally Posted by mytbyte View Post

I think you need to rotate the ambient measurement diffusor to the direct measurement position to allow HCFR to offer display type selection ...also you REALLY need to quit all X-rite software including the tray service...


that was it, never would have tried that.

thanks

post #2961 of 3436
Thread Starter 
I've updated the current version with 2 changes:


  • Auto-detect diffuser and set to ambient mode if deployed: display pro/munki
  • Allow user to skip white tile and substitute dark only cal with i1pro, i1pro/2
post #2962 of 3436
The thing about the display pro diffuser is that 99% of the time the user (well, me at least) just forgot to move it out of the way, and didn't really intend to use ambient mode. I would obviously notice it when I started to make measurements, but my initial tendency was not to remove the diffuser when starting up HCFR and selecting a sensor.

Something that makes it clear the user should remove the diffuser would probably avoid confusing new users when they first try the program. If they are like me they might not initially want to do a calibration, but just plug in the sensor (with diffuser in the default position) to make sure the program was detecting it.
Edited by kriktsemaj99 - 1/13/14 at 5:02pm
post #2963 of 3436
I am curious, what calibration method is everyone using to calibrate their LED TV?

A while ago, I use the approach someone wrote up specifically for the Epson projector, which uses the 75% saturation patterns. I use this method on my projectors, not sure the same would apply to LED sets?
post #2964 of 3436
Also, does anyone use a meter correction file?

I have the i1D3 and trying to calibrate an LED.

Thanks
post #2965 of 3436
Smokarz,
I have a 2012 Samsung ES8000 LED/LCD which I have gotten good results with. I basically followed the curt palme guide here - http://www.curtpalme.com/forum/viewtopic.php?t=10457

A few things to think about for that are:
  • If you are going to use movie mode or any mode with 10pt white balance controls, calibrate your gains at 100% or 109% white (depending on if your are clipping wtw or not). Experiment and see if you get a flatter gamma to start with by calibrating offsets at 10%, 20% or 30%.
  • If you are setting backlight for a pretty low light level, check against a higher backlight level to make sure you havent gone too low and are hurting white balance.
  • When calibrating 10pt white balance, your contrast control may impact the usefulness of 10pt controls. On my set I have to have contrast at 100 for the 10pt controls to work as intended. See here for details: http://www.avsforum.com/t/1508580/luminance-gamma/30#post_24147518
  • Turn off all dynamic contrast/etc controls. None of them do a very good job at improving calibrated accuracy (your appreciation of the impact on picture quality is another matter)
  • bt1886 gamma target is most certainly a good thing.

For CMS calibration I followed this guide - http://www.avsforum.com/t/852536/basic-guide-to-color-calibration-using-a-cms-updated-and-enhanced
My TV has RGB controls and what I found worked best was to put up reference colors using the "test color" function in HCFR and entering live reading mode and adjusting CMS controls so that the RGB live readings came into balance. I did the same for white balance as well, run a grayscale run to generate target Y's and then go into live reading mode and balance RGB to target Y.

If for some reason you don't want to use the HCFR view images generator, you can use the AVS 709 mp4 files ( http://www.avsforum.com/t/948496/avs-hd-709-blu-ray-mp4-calibration ), the GCD calibration mp4's ( http://www.avsforum.com/t/1406352/gcd-gamut-calibration-disk ) or any other free or non-free disc.

As to whether you should focus on 100%/100% or 75%/75% color sweeps, I did both, looked at average dE across all saturations, and basically took an average of the settings which gave best 100% measured results and best 75% measured results to arrive at a set of settings which gave me lowest average dE overall.

Using the above I got a very good result.

If your LED has a mode that has non-defeatable backlight dimming (Standard mode with "microdimming" on my set), gamma calibration be a little tricky. I have approached it a few ways.

First, using full field patterns for calibration, and measuring results against full field patterns got me a pretty good result, although it might not be the best approach overall as the backlight dimming has a pretty big impact on the measurements. You can see full details of my Standard Mode calibration in this post - http://www.avsforum.com/t/1399319/official-samsung-unxxes8000-owners-thread/11940#post_22933867
I also talk about the PQ impact of some of the dynamic picture options in the link above as well.

If you want to go a step further, consider using a 3dlut either through madvr ( http://www.avsforum.com/t/1471169/madvr-argyllcms ) or an eecolorbox if you dont have an htpc.

Using a 3dlut on movie mode completely eliminated all measurable errors to below a perceptible level for me. However my set has a moderate amount of flashlighting so I really wanted a calibrated mode with backlight dimming, and I am unable to disable the dimming for calibration in Standard mode.

First, here's the results I got using the controls on the TV and full fields for calibration and verification Standard mode calibration, TV controls, full field calibration and measurement (Click to show)











Using the madvr and argyllcms software linked above I compared generating 3dluts for various combinations of Standard mode pattern generation and profile verification. Considering that the backlight dimming is active when full fields are displayed for measurement, I thought what if you could largely eliminate backlight dimming from the equation by keeping a constant and high average pixel level in the patterns? MadVR doesnt support APL patterns in the MadTPG pattern generator, but it does let you measure a 10% window, and set the brightness of the border to 100%. Overall it seemed with the 100% white border that the backlight dimming was largely eliminated regardless of the % brightness interval being measured.

Standard mode calibrated using full fields compared against Standard mode calibrated using 10% windows, 100% white background (dotted line, yellow markers), full field pattern verification
dE method is cie76 with absolute Y w/ gamma enabled. comparison of standard mode calibration methods, full field verification (Click to show)

Using full field verification, Standard mode full field 3dlut has an avg 2.3 gamma, while the window calibrated 3dlut is about 2.2 average.

RGB balance is very close between the two, dE on both approaches is low, although the window calibrated lut approached dE of 2.5 at 10% black


Primaries and secondaries and saturations are very good across both approaches. I set my TV to "native" colorspace which seemed to have some problems with the 100% primaries. I may go back and recreate my 3dluts in a different colorspace setting, but all dE's are low enough that I dont think its worth it.

Second test is Standard mode calibrated using full fields and the same 10% windows above, but verified against the 10% window patterns. In theory this might more closely represent the picture reproduction of the TV in real content. comparison of standard mode calibrations against window patterns with 100% white background (Click to show)
Same comparison as above, the dotted line on bottom is the window calibration. The full field cal has avg 2.3 gamma versus avg 2.2 gamma for the window calibration.


RGB balance is excellent on both. The window calibration measured against window patterns has 0.2avg dE. The full field calibration is higher at the lower end, but still completely acceptable.


Primaries and secondaries were nearly identical as the prior test.

Here's my hcfr chc files if you want to see the differences in 3dlut calibration between movie mode (no dimming), and each of the standard mode calibration and verification methods I used:
moviemodefullfieldresults.zip 4k .zip file
stdmode10pcwindow100brightcal-10pcwindow100bright.zip 3k .zip file
stdmode10pcwindow100brightcal-fullfieldresults.zip 3k .zip file
stdmodefullfieldcal10pcwindow100brightresults.zip 4k .zip file
stdmodefullfieldcalfullfieldresults.zip 3k .zip file

Overall, it doesnt matter which mode you use, you will get an excellent result. Don't shy away from a mode which has non-defeatable backlight dimming though if you prefer dimming to flashlighting and clouding. It looks like the only real adjustment you need depending on which calibration and measurement method you use is to just adjust gamma by +1 or -1.

That was pretty much my complete process, hopefully that was helpful.

:edit: yes, use a meter correction file. Try the WLED correction file. If after you are done calibrating and it looks way off, it may not have been the right one.
Edited by 10k - 1/13/14 at 7:49pm
post #2966 of 3436
This is strange.

I am trying to adjust my color gamut.

I went through the primary colors just fine.

But when I work on my secondary colors, the RGB values went off the grid. They no longer read any measurements.

Am I doing something wrong?
post #2967 of 3436
Are you doing that in live reading mode? If so, sometimes it can get confused when you are switching color patterns and wipe out previous measurements. Just do each one one at a time in live mode and then run a full primaries & secondaries sweep afterwards.

Also, my long post above was for you, in case you didnt realize smile.gif
post #2968 of 3436
I am adjusting each color at a time in live mode.

I will run a sweep and show where I am at.

Sorry, I thought you were asking for something so I didn't read all the way through your post.

EDIT: I measured my primaries and secondaries colors, and I got an average deltaE of 9.81. Are my colors way off?




Edited by smokarz - 1/13/14 at 8:18pm
post #2969 of 3436
Quote:
Originally Posted by zoyd View Post

  • Allow user to skip white tile and substitute dark only cal with i1pro, i1pro/2
Note that high resolution wavelength mode requires the white tile calibration. It should work fine for normal wavelength mode with black though.
post #2970 of 3436
Thread Starter 
Noted, thanks. I will disable the option to skip white tile cals when high resolution mode is requested.
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