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14th January 2010, 11:40 | #1941 | Link | ||
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PS.Nice Mod on your AT. |
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14th January 2010, 13:47 | #1942 | Link |
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You first need to know the xy color coordinates of your display's primaries and optionally whitepoint.
Optimally you would use a colorimeter or spectrophotometer to find these values. If you don't own a colorimeter or spectrophotometer, and your display manufacturer doesn't list the color coordinates of the primaries (which would be better then nothing), you're out of luck. Once you find the color coordinates, make four txt files (e.g. HD_PC, HD_Video, SD_PC, SD_Video) to use as input for cr3dlut, and make a line for your primaries as follows: Code:
Output_Primaries 9 rx ry gx gy bx by wx wy Using those primary values, below is what I personally would use as input for cr3dlut (leaving whitepoint uncorrected at D65 = x 0.312713, y 0.329016): __ HD_PC.txt Code:
cr3dlut HD_PC.txt "HD - PC.3dlut" Code:
Chromatic_Adaptation 2 Out_Of_Gamut_Clipping 0 Input_Bit_Depth 8 Input_Video_Format HD YCbCr Output_Bit_Depth 16 Output_Video_Format HD RGB_PC Output_Gamma 1 Output_Primaries 9 0.627532 0.342977 0.29273 0.609456 0.147886 0.076081 0.312713 0.329016 HD_Video.txt Code:
cr3dlut HD_Video.txt "HD - Video.3dlut" Code:
Chromatic_Adaptation 2 Out_Of_Gamut_Clipping 0 Input_Bit_Depth 8 Input_Video_Format HD YCbCr Input_YCbCr_Full_Range 1 Output_Bit_Depth 16 Output_Video_Format HD RGB_Video Output_Gamma 1 Output_Primaries 9 0.627532 0.342977 0.29273 0.609456 0.147886 0.076081 0.312713 0.329016 SD_PC.txt Code:
cr3dlut SD_PC.txt "SD - PC.3dlut" Code:
Chromatic_Adaptation 2 Out_Of_Gamut_Clipping 0 Input_Bit_Depth 8 Input_Video_Format NTSC YCbCr Output_Bit_Depth 16 Output_Video_Format NTSC RGB_PC Output_Gamma 1 Output_Primaries 9 0.627532 0.342977 0.29273 0.609456 0.147886 0.076081 0.312713 0.329016 SD_Video.txt Code:
cr3dlut SD_Video.txt "SD - Video.3dlut" Code:
Chromatic_Adaptation 2 Out_Of_Gamut_Clipping 0 Input_Bit_Depth 8 Input_Video_Format NTSC YCbCr Input_YCbCr_Full_Range 1 Output_Bit_Depth 16 Output_Video_Format NTSC RGB_Video Output_Gamma 1 Output_Primaries 9 0.627532 0.342977 0.29273 0.609456 0.147886 0.076081 0.312713 0.329016 If you want to know more about how to use cr3dlut, read the included cr3dlut_ReadMe_Basic.txt & cr3dlut_ReadMe_Full.txt or ask questions in the thread here (go to the last page). Additional note: If you only have XYZ values, it is rather easy to convert them to xyz values. Just add X + Y + Z and note the sum (lets call it "S"). Then you only need to divide X by S to get x and Y by S to get y. Last edited by cyberbeing; 14th January 2010 at 14:15. |
14th January 2010, 19:13 | #1943 | Link |
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A 3dlut is not really necessary for a Home User, since it's intended for a professional domain like movie industry and in those situations the difference might count. And let's take your example, so yeh, if you afford to buy a projector like that for personal use, this might be useful and the differences noticeable on the projected image. But, you can't compare that to a PC monitor. Maybe on a Big Plasma/LCD or on a professional monitor (since you talked about color calibrations) this differences can be also noticed and easily distinguished with the naked eye. I'm not really a good example with a 19" monitor, yet is has a *VA panel, but even most with 24" don't seem to go with this category - unless they use a monitor with a decent panel (*VA, PVA, IPS), one that's usually expensive, for which color calibrations is a "must".
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14th January 2010, 20:18 | #1945 | Link | |
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14th January 2010, 21:06 | #1946 | Link | |
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the whole point of tritical and yesgrey3's work on colorimetry(and madshi for supporting GPU accelerated LUT's!) is to get a killer CMS right on the PC if your display lacks all these options(the worst pj ever is prolly the JVC RS1, it won't even let you set gamma curves )...all you need is a $200 "Eye One Display 2" and you're good to go the difference is very visible...you go from overtaned ppl to perfectly clear/natural looking colors, here's a random testimonial: http://www.avsforum.com/avs-vb/showp...4&postcount=90 it's like Reclock, once you're hooked..there's no turning back Last edited by leeperry; 14th January 2010 at 22:02. |
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14th January 2010, 22:07 | #1947 | Link | ||
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Last edited by Alante; 14th January 2010 at 22:10. |
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14th January 2010, 22:27 | #1949 | Link | |
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Still using madVR as main filter for video rendering, in few weeks i'll switch to others and see if I can change my mind. Last edited by Alante; 14th January 2010 at 22:29. |
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14th January 2010, 22:48 | #1951 | Link | |||
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If you have a standard gamut display, using a 3dlut is somewhat optional, assuming your display covers BT.601 & BT.709 gamuts decently. Blame the LCD industry for the strong push towards wide gamut for the home user which was an absolutely horrible idea, since except for professional sectors, our world operates in gamuts similar to sRGB. This means that color management (like using a 3dlut in madVR) is forced on any home user who wants their display to look normal under smaller gamut colorspaces like sRGB, BT.601, and BT.709. Edit: Since your job is design related, you must already know this. Quote:
This past Christmas I also picked up a couple refub NEC 20WMGX2 (AS-IPS panel) for $140 each as gifts. The AS-IPS panel in that model is one of the better quality panels ever made and at that price it can't be beat. Quote:
As you state though, if you are buying something like a cheap TN panel monitor, buying a color calibrator as well probably isn't worth it cost wise. Since even at $60 for something like a Pantone Huey colorimeter, for anybody who only spent $120 on their monitor, that would be a large chunk of change. In that example, the person might have even been better off just buying a $180 monitor instead. It does go without that saying that a higher quality panel (preferably IPS, though PVA isn't bad either) should always calibrate better and produce a better picture overall. The further you get above $250 when buying a (non-TN panel) monitor, buying a color calibrator becomes a more and more economical and enticing option in terms of scale, even for the home user. Edit 2: For anybody who's display manufacturer provides an ICC profile (which is pretty much all of them), assuming it is a matrix profile, you should be able to grab some canned primary values for your display which you can use for creating a custom 3dlut. The tags to look at (dump) are rXYZ (red primary), gXYZ (green primary), and bXYZ (blue primary). I wouldn't recommend using the wtpt (white point) value from a canned profile though. Last edited by cyberbeing; 14th January 2010 at 23:21. |
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14th January 2010, 23:05 | #1952 | Link | ||
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and it'd be better to give a full description of the MPC settings/filters on the Reclock forum...if you wanna have it troubleshot that is. Last edited by leeperry; 14th January 2010 at 23:08. |
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14th January 2010, 23:12 | #1953 | Link | ||
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Don't need to buy a calorimeter, since I won't used it very often yet I can barrow like the last time, might even do that to see if I can experience a visible enhancement with madVR, beyond the ones I get from calibrating my monitor. Quote:
Last edited by Alante; 14th January 2010 at 23:22. |
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15th January 2010, 01:26 | #1955 | Link | |
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I don't believe OLED is really a great replacement solution either. The differing decay times of the red, green, and in particular blue primaries (which is significantly shorter) is a massive problem for OLED which is in need of solving. As it stands now, the entire color balance of an OLED monitor will shift drastically the longer you use it. This is even more an issue because of the blue organic materials which can be used as the blue primary in OLEDs, the one which is closest to the sRGB/BT.709/AdobeRGB1998 blue primary has only a fraction of the lifespan of the blue organic materials which stray far away from the standard primaries. |
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15th January 2010, 11:18 | #1959 | Link |
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Care to detail, or you just got an idea while looking at stars and now sit on it? No, I'm not wrong - only have 2 x Refresh Rates on my LCD monitor: 60 Hz and 75 Hz, but 75 Hz gives no benefit, even makes things worst by adding more input lag. It's a known fact that most LCD monitors operate at 60 Hz for optimal performance and give no benefit beyond that. And yes, I know they released some models capable of 120 Hz (yet capable is not the correct word - since it can't be compared to the one from CRT's), but unfortunately comes with a 'TN panel' so I doubt your "this is Doom9. Lots of people here and in other forums have that kind of equipment" argument can stand on this part.
Last edited by Alante; 15th January 2010 at 11:21. |
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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