Fork of HCFR Started - What's needed? - Page 40

@ttnuagmada and cobhc2010 - what is the luminance (Y) value when you are seeing red bounce around?

I'll have to get back to you on that. The gamma plots seemed pretty consistent though, and comparable to what I'd get with the i1d2, It's a mostly flat 2.2 from 20-100%, and below that it's actually a little bit low.

I was getting some pretty large variations when doing the greyscale measure. I'm talking like 5+ dE on 10-30% from sweep to sweep without touching any TV settings. I ran it several times.

Again, I'll have to get back to you on that.


And yeah, that's the same thing I was experiencing, there's massive variations during sweeps.

If you are using USB cables longer than 6 to 8 feet, I suggest putting a bi-directional amplifier in the line. This one has worked great for me: http://www.monoprice.com/products/product.asp?c_id=103&cp_id=10307&cs_id=1030702&p_id=5327&seq=1&format=2

It stabilizes the low level readings.


Larry

Moving from ~4.93 to ~5.05.

I've just tried a different USB port without any success. I would have tried with a powered hub had it turned up today, but will be Monday now.

Edit 1:- Haha, just done 2 sweeps and the dE for 30% went from 0.8 to 7.2 on two back to back sweeps.

Edit 2:- Did some unique measures at 30% just for an example. This doesn't show Y moving much unfortunately, but this is also a reading that was showing the 0.8 dE when I first made some changes to the settings, and since a few sweeps it is now way off target, bearing in mind nothing has changed on either the screen or HCFR, or the meter.


Edited by cobhc2010 - 12/29/12 at 4:56pm

Make sure the hub has its own power supply. Don't depend on the computer to supply the needed current to both the meter and the hub.

Looks like your Y values changed about 2.5% and the blue value almost 4%. Over what time period were these readings taken?

Larry

Yeah, I will make sure of that. They were done over less than 3 minutes looking at the times the images were created.

i ended up just plugging it straight into my computer to rule any of that stuff out. I got the same results on 2 different computers.

If his problem is anything like mine, the variation in the readings he posted is representative of half of a second or so. My red readings will bounce up and down varying as much as 10%. pretty much continuously, doing it multiple times per second sometimes, blue and green shift too, but not near as much. Sometimes it will settle down for a few seconds, but I've seen it settle on different values that weren't even close to each other, so I don't trust the readings at all.

Yeah, I just wasn't quick enough taking the screenshots, but this can happen over a short period of time. Definitely something strange at play here. Any luck with any other software?

I haven't had the chance to do any serious playing around just yet. Hopefully I can check it out tonite.

Ah, fair enough. With this current problem I might as well still be using my Spyder 4 lol.

Edit: Plugged my Spyder4 back in for the hell of it, and saw similar results with blue moving up and down, albeit at snails pace. Makes me wonder if that's just down to being a cheap meter, or if there's something up with HCFR.
Edited by cobhc2010 - 12/29/12 at 7:06pm

Well, I can tell you that my i1D2 has no problems at all with the newest HCFR on my ST30. If I had to guess, i'd say that the Argyll drivers don't quite have all of the bugs worked out as far as plasma's go on some of these newer meters.
Edited by ttnuagmada - 12/29/12 at 7:31pm

You may be right there. I can't really afford to buy the likes of Calman right now, so I'll just have to stick it out for now.

The D3 does not use the argyll driver, it uses the windows standard HID driver. I see the same problem at 30% stim (~10 cd/m^2), fluctuations in the red reading in refresh mode on plasma, leading to dE variations of 4-5.

Do we know if people using either of the meters being mentioned have the same issues with Chromapure or Calman at 30%? Or is it unique to HCFR?

Calman is very stable with the same set-up.

Thank you.

Speaking of which; Should Calman, Chromapure, and HCFR all using the same meter, say a D3, give very similar WB results? I have found this not to be the case and it's very frustrating!


bob

They should all report identical results if the measurement conditions are the same ( same display, pattern, area measured, etc.). In practice there are small variations due to probe stability and test set-up repeatability but these should in general be less than 1 dEuv.

Is there one that has been the least consistent out of the three for you?

Just for extra clarification regarding HCFR and the i1D3 on a plasma. I bit the bullet and bought Calman Basic, as I figured it's a good hobbies to get into. And as hinted at previously, it's a driver/HCFR thing as Calman measures low IRE fine.

I get the same issue with a Sony LCD TV, it disappears if I increase the iris latency (General preference menu).

Without the argyl dlls you can't use the D3.

All the access of the D3 is through argyll.

If you have found an error in argyll post it in the argyll newsgroup.
(After have have checked it with plain argyll.)

Hi!
I own a x-rite colormunki display colorimeter and want to calibrate a single chip DLP projector.
Regarding this from Argyll homepage:
Furthermore:
So obviously I have to use refresh mode. But what does the "But not with Colormunki Display" mean? Can´t I use refresh mode or does it mean because reading times of Colormunki Display are already higher than with i1D3 that the integration time is not adjusted because it is already high enough? I read with i1D3 one has to calibrate sync, is this necessary too with Colormunki Display? A little confused...
Hope someone of you has used succesfully Colormunki Display with refresh type display.
Hannes.

Changing the iris time was something else that i tried, the fluctuations were still there. I had no problems with the LCD that I calibrated.

I ended up just buying calman. I'll probably still play with dispcalgui to see if its an issue with Argyll itself. Not sure when I'll have the chance though.

I previously used the Color HCFR software with my i1 Display LT to calibrate my plasma TV and various LCDs. I'm about to purchase my first projector in the very near future and will probably be looking to get a new colorimeter.

I was thinking of either the ColorMunki Display or the new i1 Display Pro. I'm guessing that the meters are the same, much like the old i1 Display 2 and the i1 Display LT were the same meters, and the only difference between them was the software. That likely being the case, (correct me if I'm wrong) and my being intimately familiar with HCFR, I was leaning towards getting the ColorMunki, if, and that's a big if, HCFR can actually be used with the ColorMunki Dispaly, or the new i1 Display Pro for that matter.

My question is, is there a list of new meters that works with HCFR, and is the ColorMunki or i1 Display Pro one of those that does?

If not, what meter would you recommend to use with HCFR for profiling a projector?

Lastly, has anyone used the software included with the ColorMunki Display or i1 Display Pro, and if so, is it a viable option for serious profiling or is it too basic to be even adequate?

Thanks


Edit:

Clicked on the link to download the newest version of HCFR and saw notes there on a few meters. Seems that it does support the ColorMunki Display, correct? Save for a few issues that appear to have been resolved. Please let me know if I am correct on this.

I didn't see the i1 Display Pro listed. Should I take it to mean that it is not supported, or is that just a list of meters that have some issues so they are noted and not the full list of compatibility?
Edited by Stuntman_Mike - 1/7/13 at 8:04am

i1 Display Pro works and you don't even need to install a driver.

Have one myself and have been using it.

Thanks for the reply.

Are you profiling a flat panel display or a projector by chance?

Ever hear of anyone using the ColorMunki with it?

Seems like the only difference is that the Display Pro profiles faster than the ColorMunki, but that the accuracy is the same. If that's the case, I might be inclined to go with the slower profiling and save $100.

Thanks