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post #601 of 1773 Old 01-20-2017, 08:43 AM
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@mascior

First off, the patterns are great and so useful.

I wonder if I might make a request.

Chromapure now uses a different workflow order for white balance and colour gamut, with 100% white needing to be measured first for both along with white balance now having an additional 5% measurement between 0% and 10% (making it a 12 point measurement process). At some point, could you re-order the Chromapure suite, or add another for the later versions please?

I believe the change was made in Chromapure v3.0 although it could have been v3.1.

Cheers,

Paul
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post #602 of 1773 Old 01-20-2017, 07:07 PM
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@mascior

I bought the patterns a few days ago, after confirming that my TV box puts the display into HDR mode using the demo patterns.
I think you've done a great job, and this set of patterns is of great value to many, who can't afford (or don't want) to buy the expensive HDR capable calibration software which may also require extra hardware.
I just completed a calibration and have some feedback.

1) For my SDR calibrations, I use the near white functionality in HCFR to dial in the contrast and/or RGB Gains to prevent clipping.
It would be great if I could do this using your patterns too, but my display maxes out somewhere between 75% and 80%, an area where there are no 1% steps in the Near White folder.
I had to get creative to get my white clipping under control, it took a lot more time and effort than I would have liked.

2) In HCFR, Near Black has 2% steps rather than one. It'd be great if we could have 11 (0% - 10%) steps rather than 6 (0% - 5%).

3) ANSI contrast test in HCFR is 5x5, this allows the meter to measure the ANSI contrast at the center of the display.
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post #603 of 1773 Old 01-21-2017, 07:45 AM
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I'm a bit confused on the 20 point LG OLED patterns and how to use them with HCFR. There's 21 columns for % white ranging from 0 to 100 in 5% increments. After I run the LG patterns how should the measurements land. Should 127 land in the 5% column, 254 in the 10% and so on until you get to 668 which would land in the 100% column? Is this right below?

Code value Grey % % white column in HCFR
1. 127..... 7.2% 5%
2. 254..... 21.7% 10%
3. 320..... 29.2% 15%
4. 386..... 36.8% 20%
5. 419..... 40.5% 25%
6. 451..... 44.2% 30%
7. 467..... 46.0% 35%
8. 482..... 47.7% 40%
9. 498..... 49.5% 45%
10. 513..... 51.3% 50%
11. 529..... 53.1% 55%
12. 544..... 54.8% 60%
13. 560..... 56.6% 65%
14. 575..... 58.3% 70%
15. 591..... 60.2% 75%
16. 606..... 61.9% 80%
17. 622..... 63.7% 85%
18. 637..... 65.4% 90%
19. 653..... 67.2% 95%
20. 668..... 68.9% 100%
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post #604 of 1773 Old 01-21-2017, 07:51 AM - Thread Starter
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Quote:
Originally Posted by youngsyp View Post
@mascior

First off, the patterns are great and so useful.

I wonder if I might make a request.

Chromapure now uses a different workflow order for white balance and colour gamut, with 100% white needing to be measured first for both along with white balance now having an additional 5% measurement between 0% and 10% (making it a 12 point measurement process). At some point, could you re-order the Chromapure suite, or add another for the later versions please?

I believe the change was made in Chromapure v3.0 although it could have been v3.1.

Cheers,

Paul
Hi Paul

Absolutely! I'm currently working on other modification for the next big revision, this will be part of it. Thanks!

-Ryan
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post #605 of 1773 Old 01-21-2017, 07:56 AM - Thread Starter
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Quote:
Originally Posted by The Coolest View Post
@mascior

I bought the patterns a few days ago, after confirming that my TV box puts the display into HDR mode using the demo patterns.
I think you've done a great job, and this set of patterns is of great value to many, who can't afford (or don't want) to buy the expensive HDR capable calibration software which may also require extra hardware.
I just completed a calibration and have some feedback.

1) For my SDR calibrations, I use the near white functionality in HCFR to dial in the contrast and/or RGB Gains to prevent clipping.
It would be great if I could do this using your patterns too, but my display maxes out somewhere between 75% and 80%, an area where there are no 1% steps in the Near White folder.
I had to get creative to get my white clipping under control, it took a lot more time and effort than I would have liked.

2) In HCFR, Near Black has 2% steps rather than one. It'd be great if we could have 11 (0% - 10%) steps rather than 6 (0% - 5%).

3) ANSI contrast test in HCFR is 5x5, this allows the meter to measure the ANSI contrast at the center of the display.
Hi The Coolest

Request one and two will be taken care of in the next revision. However, request three I would have to create...not an issue though. I will add that as well. Thanks!

-Ryan
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post #606 of 1773 Old 01-21-2017, 08:07 AM - Thread Starter
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Quote:
Originally Posted by Test Ickles View Post
I'm a bit confused on the 20 point LG OLED patterns and how to use them with HCFR. There's 21 columns for % white ranging from 0 to 100 in 5% increments. After I run the LG patterns how should the measurements land. Should 127 land in the 5% column, 254 in the 10% and so on until you get to 668 which would land in the 100% column? Is this right below?

Code value Grey % % white column in HCFR
1. 127..... 7.2% 5%
2. 254..... 21.7% 10%
3. 320..... 29.2% 15%
4. 386..... 36.8% 20%
5. 419..... 40.5% 25%
6. 451..... 44.2% 30%
7. 467..... 46.0% 35%
8. 482..... 47.7% 40%
9. 498..... 49.5% 45%
10. 513..... 51.3% 50%
11. 529..... 53.1% 55%
12. 544..... 54.8% 60%
13. 560..... 56.6% 65%
14. 575..... 58.3% 70%
15. 591..... 60.2% 75%
16. 606..... 61.9% 80%
17. 622..... 63.7% 85%
18. 637..... 65.4% 90%
19. 653..... 67.2% 95%
20. 668..... 68.9% 100%
Hi Test Ickles

Not exactly, reference this post here LINK. Since there isn't an actual workflow for these LG code specific patterns, one must be created. Thanks!

-Ryan
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post #607 of 1773 Old 01-21-2017, 08:28 AM
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Originally Posted by mascior View Post
Hi Test Ickles

Not exactly, reference this post here LINK. Since there isn't an actual workflow for these LG code specific patterns, one must be created. Thanks!

-Ryan
Thanks Ryan. Where do I enter them. Not seeing how to do it. Thanks
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post #608 of 1773 Old 01-21-2017, 10:20 AM - Thread Starter
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Originally Posted by Test Ickles View Post
Thanks Ryan. Where do I enter them. Not seeing how to do it. Thanks
Locate the "usercolors.csv" file (example C:\Program Files (x86)\HCFR Calibration\usercolors.csv), modify with the new triplets, and save. Launch hcfr, click on the "Advanced" tab, select "Preferences", click on the "Reference" tab, and under "Color Checker Patterns", select "User Defined". Now when you select colorchecker within the workflow, you can utilize the LG code specific patterns. I hope this helps. Thanks!

-Ryan
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Quote:
Originally Posted by mascior View Post
Locate the "usercolors.csv" file (example C:\Program Files (x86)\HCFR Calibration\usercolors.csv), modify with the new triplets, and save. Launch hcfr, click on the "Advanced" tab, select "Preferences", click on the "Reference" tab, and under "Color Checker Patterns", select "User Defined". Now when you select colorchecker within the workflow, you can utilize the LG code specific patterns. I hope this helps. Thanks!

-Ryan
Sorry completely lost. I saved the notepad file you linked me. But I'm lost. Sorry to be such a noob.
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post #610 of 1773 Old 01-21-2017, 11:05 AM - Thread Starter
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Sorry completely lost. I saved the notepad file you linked me. But I'm lost. Sorry to be such a noob.
No worries. The "usercolors.csv" is an Excel spreadsheet that need to be modified. When you install hcfr, it installs a folder within your hard drive (example C:\Program Files (x86)\HCFR Calibration\usercolors.csv). It should be located somewhere on your laptop and/or PC hard drive root. You simply open up the spreadsheet and modify the existing numbers with the ones found on the notepad file you downloaded, in order. Then save the file and close. Once that's completed, re-launch hcfr, click on the "Advanced" tab, select "Preferences", click on the "Reference" tab, and under "Color Checker Patterns", select "User Defined" as the default colorchecker patterns. This now uses your newly modified "usercolors.csv" file and allows the utilization of the LG code specific patterns within my pattern suite. I hope this helps.

-Ryan
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@mascior Good afternoon! I purchased the HDR patterns from your website last week and had success calibrating for HDR movies using the new oppo player.

Since my display is a projector, I wanted to also take advantage of the Strip Metadata function within the Oppo player to display SDR BT.2020.

I was wondering if you could tell me what I should be aiming for with regard to black/white clipping.

I currently have black clipping displaying bar 130 and nothing below.

My contrast has been adjusted so that bar 721 is flashing, nothing above that.


To my eyes, the picture looks great-- but wondering if i am crushing blacks in there or if I should be aiming for different calibration points.

Thank you for providing these patterns!

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post #612 of 1773 Old 01-21-2017, 03:31 PM
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Quote:
Originally Posted by mascior View Post
No worries. The "usercolors.csv" is an Excel spreadsheet that need to be modified. When you install hcfr, it installs a folder within your hard drive (example C:\Program Files (x86)\HCFR Calibration\usercolors.csv). It should be located somewhere on your laptop and/or PC hard drive root. You simply open up the spreadsheet and modify the existing numbers with the ones found on the notepad file you downloaded, in order. Then save the file and close. Once that's completed, re-launch hcfr, click on the "Advanced" tab, select "Preferences", click on the "Reference" tab, and under "Color Checker Patterns", select "User Defined" as the default colorchecker patterns. This now uses your newly modified "usercolors.csv" file and allows the utilization of the LG code specific patterns within my pattern suite. I hope this helps.

-Ryan
Thanks! I found it. There's 500 lines of numbers. Do I delete them all and just use the 20 lines from the notepad or do I just change the first 20 lines and leave the rest of it? Here's the first 20 lines and there's 480 more.
235 235 235 1 Random_500
43 134 75 2
16 138 100 3
16 174 141 4
16 207 153 5
163 209 215 6
224 224 224 7
155 142 168 8
187 151 176 9
108 16 16 10
120 16 16 11
131 16 16 12
143 16 16 13
154 16 16 14
165 16 16 15
177 16 16 16
189 16 16 17
201 16 16 18
235 16 16 19
235 16 59 20
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Quote:
Originally Posted by Test Ickles View Post
Thanks! I found it. There's 500 lines of numbers. Do I delete them all and just use the 20 lines from the notepad or do I just change the first 20 lines and leave the rest of it? Here's the first 20 lines and there's 480 more.
235 235 235 1 Random_500
43 134 75 2
16 138 100 3
16 174 141 4
16 207 153 5
163 209 215 6
224 224 224 7
155 142 168 8
187 151 176 9
108 16 16 10
120 16 16 11
131 16 16 12
143 16 16 13
154 16 16 14
165 16 16 15
177 16 16 16
189 16 16 17
201 16 16 18
235 16 16 19
235 16 59 20
You don't need to go to all of this trouble for measuring these LG patterns.
Just use HCFR's 5% columns. There is one for each pattern.

The only difference you need to do is ignore the DE difference. Just look at the RGB values, you want each of them to match the target as per the procedures PDF you're trying to follow.


That aside, I'd direct you to the 2016 oled calibration thread where HDR calibration on these particular displays have been discussed. I've noted many issues with the procedures defined in this PDF, how our displays controls behave, and others have given their opinion as to make the best of it for these displays.

If you choose not to, be aware that controls for code values 560 thru 668 will NOT be adjusting the matching pattern, they are shifted down so 622 controls effect the 606 pattern. Lowering Contrast instead of OLED light will realign these controls. This is clearly in conflict with the procedures pdf which instructs us to lower OLED to reach 540 peak. Also, 668 is not the peak either. Use the 100% non-lg grayscale/gamma patterns (I use the 100% of 10000 nits pattern since quicker and easier to navigate to).
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post #614 of 1773 Old 01-21-2017, 07:29 PM
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I've searched and can't seem to find any sort of assistance/walk through for using these patterns with hcfr. Is there such a thing? I'm admittedly a novice to calibration but I went ahead and purchased the patterns today after confirming that I can use them to trigger HDR mode on my setup. I was able to perform a 2pt as I'm used to in SDR and dial in the grayscale DE, but trying to line up the EOTF like I'm seeing people do in Calman is where I get lost.

Attached is 2 screen caps from pre-cal. Vizio P50 calibrated dark stock settings with gamma at 2.0.
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Sony 55X900e
Vizio P50-C1 - My Calibration Settings
Xbox One X
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Last edited by chad473; 01-21-2017 at 07:49 PM.
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post #615 of 1773 Old 01-21-2017, 08:14 PM
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Originally Posted by chad473 View Post
I've searched and can't seem to find any sort of assistance/walk through for using these patterns with hcfr. Is there such a thing? I'm admittedly a novice to calibration but I went ahead and purchased the patterns today after confirming that I can use them to trigger HDR mode on my setup. I was able to perform a 2pt as I'm used to in SDR and dial in the grayscale DE, but trying to line up the EOTF like I'm seeing people do in Calman is where I get lost.
You tell HCFR to use DVD/manual pattern generator. Set any other options as needed (gamma targets, color space, any manual black overrides, etc).
If you're wanting to do a grayscale sweep, you can hit the "measure grayscale" button. Before clicking ok to measure, start the pattern it asks for (5%, 10%, etc) then hit measure once it's on the screen. when it's done it will ask for the next pattern, so change to it and hit ok to measure.
Repeat until done.

If you want to measure a single pattern and not all, simply click in the column you want and click the camera icon to perform a "unique measurement".
This will update the measurement data in that column.

If you want to do live, on-the-fly measurements click the green triangle to start continuous measurements. Since it's doing back to back measurements, you can keep your controls up on the screen so you can adjust them until you get what you want for a particular pattern.
Do note that some displays controls may alter measurements. Some force backlight to max, others may simply cover the pattern. For my E6 oled, having any interface elements effects ABL dimming which will skew measurements slightly and moreso on dark patterns.

measure, adjust, repeat until happy.

Now if you were asking how to go about it, like as workflow or perhaps what controls to change and when, then I suggest you look at some of the other threads in this forum.
This is a recent post from Mr. Aspiotis who was kind enough to share some links to resources for this purpose. It was from the calibration thread for my own display, but is not ONLY for the displays in that thread.

I hope something here helps answer your question.



****EDIT****
I didn't see your screenshots til after I submitted my post. Oops.
I don't know what kind of controls you have on your display. You mentioned 2 point controls, and your screenshots are in 10% steps so I'm going to assume you have both 2-point controls and 10-point controls. You can only do so much with only 2-point controls.

On the measurement window there are radio buttons above the measurement/delete buttons. Your are set to xyY but I'd set it to RGB, personally.
This will change the rows in your measurements window from x, y, and Y to R2020, G2020 and B2020.
No one's display can get any where close to the 10000 nits target that is assigned to the 100 column. All displays are going to clip, but each will be at different max nits. I'm just guessing here but I'd say your display should reach somewhere between 75% and 80%. My E6 clips around 700 nits.

Find where this clipping point is on your display, with default white balance controls (0?). When you have brightness set (black level). Check black levels again afterwards, and if needed keep going back and forth until you don't need to change them anymore. I'm sure you already know this though, just reiterating it to satiate my OCD.
For some displays, using 2-point controls to further fine tune black and white can be a better technique instead of adjusting 2-point controls using patterns 25/30% and 75/80%.

For everything in between, you need to raise and lower R, G & B controls up or down while maintaining the balance. By raising and lowering them together, you are changing the luminance of that point. Changing this luminance is how you dial in gamma.
You'll need to measure, adjust, and repeat for all patterns until you no longer need to adjust any controls.

Then you can move on to colors. I think we should keep HCFR set to rec2020 and not "2020/P3". I'm not at the color stage yet, so I'm just assuming this is correct.
I think we should start with the "P3 in BT2020" patterns, only using them to set luminance, and then switch to using the "50% amplitude 50% saturation" to set tint and saturation. Hmm, P3 in 2020 might be redundant and thus ignored.
Again, like I said I really don't have a clue about the color calibration aspect. Why do we have a P3 in 2020 option in HCFR? Is it for calibrating mastering/mixing/grading displays?
50% vs 100% saturation I understand, but what about 50% vs 100% amplitude/intensity?

I'm just waiting until I'm done with grayscale before answering my own questions regarding color workflow and targets.
Then I think we should switch to use the 75/75 2020 patterns
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post #616 of 1773 Old 01-22-2017, 06:41 AM
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Quote:
Originally Posted by Kamikaze_Ice View Post
You don't need to go to all of this trouble for measuring these LG patterns.
Just use HCFR's 5% columns. There is one for each pattern.

The only difference you need to do is ignore the DE difference. Just look at the RGB values, you want each of them to match the target as per the procedures PDF you're trying to follow.


That aside, I'd direct you to the 2016 oled calibration thread where HDR calibration on these particular displays have been discussed. I've noted many issues with the procedures defined in this PDF, how our displays controls behave, and others have given their opinion as to make the best of it for these displays.

If you choose not to, be aware that controls for code values 560 thru 668 will NOT be adjusting the matching pattern, they are shifted down so 622 controls effect the 606 pattern. Lowering Contrast instead of OLED light will realign these controls. This is clearly in conflict with the procedures pdf which instructs us to lower OLED to reach 540 peak. Also, 668 is not the peak either. Use the 100% non-lg grayscale/gamma patterns (I use the 100% of 10000 nits pattern since quicker and easier to navigate to).
So line up the LG code patterns to the 5% Columns. 127 equals 5% all the way to 668 equals 100% but instead of using the 668 pattern for the last measurement (100%), use a 100% non LG pattern. Is this right? This is what I have done. I've got all my DE's in the green except 100 (668) but my average gamma is over 6 and doesn't even register on the graph so I believe I'm doing something wrong. Also towards the brighter patterns I have had to lower blue into the negative teens and twenty's. Sound normal? Thanks,

Last edited by Test Ickles; 01-22-2017 at 06:45 AM.
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post #617 of 1773 Old 01-22-2017, 08:10 AM
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Originally Posted by Kamikaze_Ice View Post
****EDIT****
I didn't see your screenshots til after I submitted my post. Oops.
I don't know what kind of controls you have on your display. You mentioned 2 point controls, and your screenshots are in 10% steps so I'm going to assume you have both 2-point controls and 10-point controls. You can only do so much with only 2-point controls.

On the measurement window there are radio buttons above the measurement/delete buttons. Your are set to xyY but I'd set it to RGB, personally.
This will change the rows in your measurements window from x, y, and Y to R2020, G2020 and B2020.
No one's display can get any where close to the 10000 nits target that is assigned to the 100 column. All displays are going to clip, but each will be at different max nits. I'm just guessing here but I'd say your display should reach somewhere between 75% and 80%. My E6 clips around 700 nits.

Find where this clipping point is on your display, with default white balance controls (0?). When you have brightness set (black level). Check black levels again afterwards, and if needed keep going back and forth until you don't need to change them anymore. I'm sure you already know this though, just reiterating it to satiate my OCD.
For some displays, using 2-point controls to further fine tune black and white can be a better technique instead of adjusting 2-point controls using patterns 25/30% and 75/80%.

For everything in between, you need to raise and lower R, G & B controls up or down while maintaining the balance. By raising and lowering them together, you are changing the luminance of that point. Changing this luminance is how you dial in gamma.
You'll need to measure, adjust, and repeat for all patterns until you no longer need to adjust any controls.
Thanks for the response, and it seems like my thinking was on the right track. That's how I would run through the procedure for SDR. I guess my confusion is happening from the targets that I'm seeing in HCFR. I've set rec2020 as colorspace and st2084 gamma in the references tab, but the targets that HCFR is displaying after I do this is confusing. My understanding is that the gamma graph is essentially the EOTF that people are adjusting in Calman (only bring this up since most people calibrating the P series in the dedicated thread are using calman, so it's what I'm trying to model after). As you can see in my first pic, my measures start really deviating at 60 and then go off the chart. No amount of adjusting the 11point controls let me pull the luminance back towards the target. From everything I've read in the P series calibration thread, on this firmware the HDR10 is pretty good and needs minimal adjustment--so my graphs being way off don't seem right. It is making me think that I don't have correct settings in HCFR.

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post #618 of 1773 Old 01-23-2017, 08:41 AM
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@mascior

I currently have black clipping displaying bar 130 and nothing below.
)
64 should be black and all bars above that should be flashing.

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post #619 of 1773 Old 01-23-2017, 09:04 AM
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64 should be black and all bars above that should be flashing.
Thanks SOWK and I must say-- hell of a job on your theater. I'm a long-time lurker in your thread and was one of the big inspirations behind doing my room.

So, 64 should be black for SDR BT.2020? I know that's the case for HDR... but I'm going to use the Strip Metadata function until I can get a proper calibration for HDR.

Thanks again...for the SDR info and theater inspiration.

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post #620 of 1773 Old 01-23-2017, 09:16 AM
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Originally Posted by sonichart View Post
Thanks SOWK and I must say-- hell of a job on your theater. I'm a long-time lurker in your thread and was one of the big inspirations behind doing my room.

So, 64 should be black for SDR BT.2020? I know that's the case for HDR... but I'm going to use the Strip Metadata function until I can get a proper calibration for HDR.

Thanks again...for the SDR info and theater inspiration.
Thank you for the very kind words.

And yes if you are using the UHD HDR test patterns black of 64 in HDR mode should still be black on 64 in SDR.

I'm currently working with Oppo on getting this fixed as well.

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post #621 of 1773 Old 01-23-2017, 09:27 AM
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Thank you for the very kind words.

And yes if you are using the UHD HDR test patterns black of 64 in HDR mode should still be black on 64 in SDR.

I'm currently working with Oppo on getting this fixed as well.
Good to know that Oppo is aware of the issue.

I haven't tried too hard to resolve below bar 130 (7.5%) but I'm guessing the inability to resolve bar 68-130 has to do with the Strip Metadata function or that the USB port of the Oppo doesn't support UHD?

Would I have better luck burning the patterns to a DVD or is it another case of 'hurry up and wait' for a FW fix?

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post #622 of 1773 Old 01-23-2017, 09:43 AM
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Good to know that Oppo is aware of the issue.

I haven't tried too hard to resolve below bar 130 (7.5%) but I'm guessing the inability to resolve bar 68-130 has to do with the Strip Metadata function or that the USB port of the Oppo doesn't support UHD?

Would I have better luck burning the patterns to a DVD or is it another case of 'hurry up and wait' for a FW fix?
Just checked on my setup (see sig, no pj here), and Strip Metadata does indeed clip at 130 (I do get below 64 in HDR mode); output still says 10bit BT2020.

Have you tested this @SOWK ?

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post #623 of 1773 Old 01-23-2017, 09:59 AM
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Just checked on my setup (see sig, no pj here), and Strip Metadata does indeed clip at 130 (I do get below 64 in HDR mode); output still says 10bit BT2020.

Have you tested this @SOWK ?
Tremendously helpful!

Yea, IIRC I can resolve down to 64 in HDR... but its doesn't look black anymore, more a dark grey, but I believe that a limitation with my PJ more than anything else.


Here's hoping Oppo address this in the next beta FW.
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post #624 of 1773 Old 01-23-2017, 10:06 AM
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Good to know that Oppo is aware of the issue.

I haven't tried too hard to resolve below bar 130 (7.5%) but I'm guessing the inability to resolve bar 68-130 has to do with the Strip Metadata function or that the USB port of the Oppo doesn't support UHD?

Would I have better luck burning the patterns to a DVD or is it another case of 'hurry up and wait' for a FW fix?
Here is my original e-mail to Oppo.



"HDR to SDR and Strip Metadata feature incorrectly map the gray scale and Crush blacks.

This results in banding in darker images and shadows, while also losing data in the shadows that get close to black. (Example: black suit details)

***Info for my description below: Gray scale Video Level 0 through 1023 (0 = Pure Black, 1023 = Pure White)***

When converting HDR to SDR video level 0 (pure black) is crushed all the way too ~ video level 81

and when converting HDR to SDR via Strip Metadata feature video level 0 is crushed all the way too ~ video level 121


For proper Movie conversion....

HDR video level 64 (Black for video content) needs to be remapped to SDR video level 16

&

HDR video level 940 (White for video content needs to be remapped to SDR video level 235



For proper PC level conversions....

HDR video level 0 (Black for PC content) needs to be remapped to SDR video level 0

&

HDR video level 1023 (White for PC content needs to be remapped to SDR video level 255"




I'll let people know the outcome.
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post #625 of 1773 Old 01-23-2017, 10:06 AM - Thread Starter
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I just tested and it's still crushing black when the metadata is stripped, using the newly released firmware (UDP-20X-33-1229). I'm currently working with Oppo on a few things as well. Thanks!

-Ryan
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post #626 of 1773 Old 01-23-2017, 10:10 AM
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Originally Posted by galonzo View Post
Just checked on my setup (see sig, no pj here), and Strip Metadata does indeed clip at 130 (I do get below 64 in HDR mode); output still says 10bit BT2020.

Have you tested this @SOWK ?
I believe if you add a click or two to brightness under picture settings on the OPPO you can get a tad more out of the black level clipping pattern. As long as your output is not sourse direct you should gain the one additional black bar.
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post #627 of 1773 Old 01-23-2017, 10:11 AM
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I just tested and it's still crushing black when the metadata is stripped, using the newly released firmware (UDP-20X-33-1229). I'm currently working with Oppo on a few things as well. Thanks!

-Ryan

I guess we both were...


I'll let you handle it mostly as you are the one who did the test patterns.


ALSO!!!! Not just metadata stripping, SDR mode is inaccurate as well.

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post #628 of 1773 Old 01-23-2017, 10:15 AM
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@mascior ....

Can you make a White Clipping Pattern that goes to the full 1023 and a Black Clipping Pattern that goes to 0 please.

You current patterns are great for Video content.

64 and 940

But I would also like patterns for PC 10bit content

0 and 1023
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post #629 of 1773 Old 01-23-2017, 10:22 AM - Thread Starter
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Originally Posted by SOWK View Post
For proper Movie conversion....

HDR video level 64 (Black for video content) needs to be remapped to SDR video level 16

&

HDR video level 940 (White for video content needs to be remapped to SDR video level 235



For proper PC level conversions....

HDR video level 0 (Black for PC content) needs to be remapped to SDR video level 0

&

HDR video level 1023 (White for PC content needs to be remapped to SDR video level 255"
Hi SOWK

0(PC) and 64(Video)/1023(PC) and 940(Video) could still be utilized in SDR, as they just represent 10 bit vs 8bit triplet code values. I believe the issue is in how the metadata is being stripped. The ST.2084 flag is what triggers HDR, if this flag is being stripped and the decoder doesn't have a proper transfer function, things will not map properly. Thanks.

-Ryan
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post #630 of 1773 Old 01-23-2017, 10:27 AM
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Hi SOWK

0(PC) and 64(Video)/1023(PC) and 940(Video) could still be utilized in SDR, as they just represent 10 bit vs 8bit triplet code values. I believe the issue is in how the metadata is being stripped. The ST.2084 flag is what triggers HDR, if this flag is being stripped and the decoder doesn't have a proper transfer function, things will not map properly. Thanks.

-Ryan
I wanted to dumb it down for them. So they could relate the two 8 bit vs 10 bit.

aka 16 in 8 bit = 64 in 10 bit...
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