geekhack

geekhack Community => Off Topic => Topic started by: tp4tissue on Thu, 19 April 2018, 19:08:46

Title: Do you Calibrate ?
Post by: tp4tissue on Thu, 19 April 2018, 19:08:46: It's like this monitor is a cat.

And it has deliberately wizzed on the carpet..

x230 ips display, un-calibrated. !

Red = Bad

Before

[attach=1]

After

[attach=2]
Title: Re: Do you Calibrate ?
Post by: JP on Thu, 19 April 2018, 22:24:37: I've never calibrated mine. I bought my monitor used from a photographer so maybe it was before I bought it.
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Thu, 19 April 2018, 22:51:37: Quote from: JP on Thu, 19 April 2018, 22:24:37
I've never calibrated mine. I bought my monitor used from a photographer so maybe it was before I bought it.

Well calibration is unique to the output unless the monitor has embedded hardware sensor.

What monitor did you buy
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Fri, 20 April 2018, 21:09:05: X120E netbook ..

Bought this 'puter for $200 back in the day...

Chk out that Sweet Contrast Ratio. !!

This is -Calibrated- hahahaha

[attach=1]
Title: Re: Do you Calibrate ?
Post by: JP on Fri, 20 April 2018, 22:06:32: I'm not sure of the steps to even calibrate a monitor. I suppose I could always google it one of these days but I deal more with text than graphics.
Title: Re: Do you Calibrate ?
Post by: Elth on Fri, 20 April 2018, 22:11:48: Which hardware calibration does tp4 use?
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Fri, 20 April 2018, 22:29:53: Quote from: Elth on Fri, 20 April 2018, 22:11:48
Which hardware calibration does tp4 use?

just got a cheapee spyder5 ..

Using displaycal, works with the probe much better than the bundled software.

Quote from: JP on Fri, 20 April 2018, 22:06:32
I'm not sure of the steps to even calibrate a monitor. I suppose I could always google it one of these days but I deal more with text than graphics.

You can make a monitor -Look- Good by eye..

But it's not going to be accurate (which isn't a requirement)..

I'm just playn' round myself.. cuz color probes are cheap

To do it by eye..

Get the black level as low as possible. White level (saturation) as high as possible

Put Gamma near the 2.2 convergence

Use the test images here

http://www.lagom.nl/lcd-test/
Title: Re: Do you Calibrate ?
Post by: JP on Sat, 21 April 2018, 08:28:45: Quote from: tp4tissue on Thu, 19 April 2018, 22:51:37
Well calibration is unique to the output unless the monitor has embedded hardware sensor.

What monitor did you buy

I went from an Acer 22'' lcd I've had since 2008 to an LG 27UD68-P 27''.
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Sat, 21 April 2018, 08:52:39: Quote from: JP on Sat, 21 April 2018, 08:28:45
Quote from: tp4tissue on Thu, 19 April 2018, 22:51:37
Well calibration is unique to the output unless the monitor has embedded hardware sensor.

What monitor did you buy

I went from an Acer 22'' lcd I've had since 2008 to an LG 27UD68-P 27''.

Hrrrmmm... well , for gam3r, you'll probably enjoy the default color scheme on that monitor more than calibrated..

Calibrated sRGB is Very Warm , and if you're a young person, you would've grown up with mostly Blue-ish factory calibrations (because it sells more tv, people like blue)..

Still.. calibrating is fun , color probes go on sale ~$100, both the colormunki and spyder go on sale for that much.

Or you can do what I did in college.. you just hit on the females in the art department, until they would borrow a colorimeter for you to use..

It's all legal, they just say they need it to calibrate the computer in their dorm, then I happened to walk by, and got my calibration done.. it's all legit..

You don't need to get the PRO versions of the xrite/spyder,, the probe is the same, it's just artificially tiered software gimping.

But their software doesn't work nearly as well as Free software anyway.. (displaycal, argyle)

THOUGH, I do suspect displaycal is ran by the NSA as a means to inject screen capture code into people's computers..
Title: Re: Do you Calibrate ?
Post by: xtrafrood on Sat, 21 April 2018, 15:17:12: I adjust by eyeball (without magnifying lens) if I want to render something. During a normal 'session', I login to the machine, and Redshift automagically adjusts color temp throughout the day.
Title: Re: Do you Calibrate ?
Post by: Lansky on Sat, 21 April 2018, 15:57:48: I calibrate using a Spyder4Elite.
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Sat, 21 April 2018, 16:01:26: Quote from: Lansky on Sat, 21 April 2018, 15:57:48
I calibrate using a Spyder4Elite.

I can't get the damn spyder software to work right..
On my u2410, it's crushing the blacks, and casting a blue hue..

Their profile loader also doesn't work consistently with intel igpu for some reason.

But I only have the gimped pro-tier peasant-version, without all the kewl options from the elite.

Displaycal/argyl works straight up. and their loader always works.
Title: Re: Do you Calibrate ?
Post by: rowdy on Sat, 21 April 2018, 23:56:27: Monitor calibration is of no use if your eyes are not calibrated too.
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Sun, 22 April 2018, 06:33:15: Quote from: rowdy on Sat, 21 April 2018, 23:56:27
Monitor calibration is of no use if your eyes are not calibrated too.

This is true, but the fall back is,

if Anyone's pictures don't look good on Tp4's monitor,

it's now always Their-fault, hahahaahahahahahahahaha

Tp4 @ dat 99.14% sRGB, Avg De 0.22
Title: Re: Do you Calibrate ?
Post by: JP on Sun, 22 April 2018, 08:29:56: TP4 should ask the females for help with monitor calibration since males have a greater chance of being color blind.
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Sun, 22 April 2018, 09:21:23: Quote from: JP on Sun, 22 April 2018, 08:29:56
TP4 should ask the females for help with monitor calibration since males have a greater chance of being color blind.

've been playing around w/ the calibration..

At the cross-roads atm.

Under 2 -mutually xclusive- calibration profiles..

Is accurate Grey balance at low luminance more or less important than accurate gamma tracking at High luminance ??

I guess simplified, the question is, Are neutral dark black colors more or less important than accurate bright colors.

Any gekhak females can answer this ?
Title: Re: Do you Calibrate ?
Post by: xtrafrood on Sun, 22 April 2018, 09:38:07: Quote from: tp4tissue on Sun, 22 April 2018, 09:21:23
Quote from: JP on Sun, 22 April 2018, 08:29:56
TP4 should ask the females for help with monitor calibration since males have a greater chance of being color blind.

've been playing around w/ the calibration..

At the cross-roads atm.

Under 2 -mutually xclusive- calibration profiles..

Is accurate Grey balance at low luminance more or less important than accurate gamma tracking at High luminance ??

I guess simplified, the question is, Are neutral dark black colors more or less important than accurate bright colors.

Any gekhak females can answer this ?

(https://i.imgur.com/OSJ7kBr.gif)
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Sun, 22 April 2018, 09:55:29: Quote from: csmertx on Sun, 22 April 2018, 09:38:07

Show Image
(https://i.imgur.com/OSJ7kBr.gif)

(https://i.imgur.com/AyqV2X0.gif)
Title: Re: Do you Calibrate ?
Post by: vitalious on Sun, 22 April 2018, 21:24:16: never calibrated mine.
Title: Re: Do you Calibrate ?
Post by: rowdy on Sun, 22 April 2018, 21:57:57: Quote from: JP on Sun, 22 April 2018, 08:29:56
TP4 should ask the females for help with monitor calibration since males have a greater chance of being color blind.

And females have a better chance of having tetrachromacy.
Title: Re: Do you Calibrate ?
Post by: widdlekitty on Sun, 22 April 2018, 22:09:27: Frequently. I have an 1Display Pro at home. At work I do color critical work, so I try to have some level of parity at home. Rec709 I cover 100%, srgb.... about 99%
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Sun, 22 April 2018, 23:23:19: Quote from: widdlekitty on Sun, 22 April 2018, 22:09:27
Frequently. I have an 1Display Pro at home. At work I do color critical work, so I try to have some level of parity at home. Rec709 I cover 100%, srgb.... about 99%

I really want the 1display pro.

The spyder5 i have works fine for my purposes, but even then, it's so darn slow..
Title: Re: Do you Calibrate ?
Post by: widdlekitty on Mon, 23 April 2018, 00:02:32: Quote from: tp4tissue on Sun, 22 April 2018, 23:23:19
Quote from: widdlekitty on Sun, 22 April 2018, 22:09:27
Frequently. I have an 1Display Pro at home. At work I do color critical work, so I try to have some level of parity at home. Rec709 I cover 100%, srgb.... about 99%

I really want the 1display pro.

The spyder5 i have works fine for my purposes, but even then, it's so darn slow..

I mean, a thorough Cal still takes about 6 hours or so. I'm tempted to borrow the nice spectrometer we have at the office. I don't have high hopes for the stability of my monitors, so I would anticipate needing to do a fresh one prior to anything critical.
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Mon, 23 April 2018, 00:14:13: Quote from: widdlekitty on Mon, 23 April 2018, 00:02:32
Quote from: tp4tissue on Sun, 22 April 2018, 23:23:19
Quote from: widdlekitty on Sun, 22 April 2018, 22:09:27
Frequently. I have an 1Display Pro at home. At work I do color critical work, so I try to have some level of parity at home. Rec709 I cover 100%, srgb.... about 99%

I really want the 1display pro.

The spyder5 i have works fine for my purposes, but even then, it's so darn slow..

I mean, a thorough Cal still takes about 6 hours or so. I'm tempted to borrow the nice spectrometer we have at the office. I don't have high hopes for the stability of my monitors, so I would anticipate needing to do a fresh one prior to anything critical.

Stability at home is better these days with LED backlit.

CCFL used to drift quite alot when hot.
Title: Re: Do you Calibrate ?
Post by: widdlekitty on Mon, 23 April 2018, 00:27:56: Quote from: tp4tissue on Mon, 23 April 2018, 00:14:13
Quote from: widdlekitty on Mon, 23 April 2018, 00:02:32
Quote from: tp4tissue on Sun, 22 April 2018, 23:23:19
Quote from: widdlekitty on Sun, 22 April 2018, 22:09:27
Frequently. I have an 1Display Pro at home. At work I do color critical work, so I try to have some level of parity at home. Rec709 I cover 100%, srgb.... about 99%

I really want the 1display pro.

The spyder5 i have works fine for my purposes, but even then, it's so darn slow..

I mean, a thorough Cal still takes about 6 hours or so. I'm tempted to borrow the nice spectrometer we have at the office. I don't have high hopes for the stability of my monitors, so I would anticipate needing to do a fresh one prior to anything critical.

Stability at home is better these days with LED backlit.

CCFL used to drift quite alot when hot.

I agree, but even still I'd suspect almost all home monitors would drift above the delta 1 threshold after a few weeks. We have a dolby reference monitor at the office holds it together for 6+ months,
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Fri, 18 May 2018, 12:18:18: Been playing w/ calibrations, discovered:: ..

On budget displays, Don't Mess with the Gain Control..

Just calibrate w/ the Maximum 100% gains on all channels..

The problem is, on alot of these panels, the gains control to get to 6500k will affect the contrast response curve enough to cause clipping.

In these situations, just sit back and let the software profile the display.

The only case where you want to touch the gains (lower them), is if you see high-contrast clipping where patches ~235-240 rgb are clipping AFTER having first calibrated..
Title: Re: Do you Calibrate ?
Post by: Elth on Fri, 18 May 2018, 13:40:53: I am now calibrated.
Title: Re: Do you Calibrate ?
Post by: chyros on Fri, 18 May 2018, 15:44:42: I calibrate a fair bit. Especially when those bloody PhDs have been messing with the spectrometer again!
Title: Re: Do you Calibrate ?
Post by: bizzy11 on Fri, 18 May 2018, 15:56:32: I've never calibrated my monitors, but when I looked it up it said that these monitors are always calibrated before leaving the factory.

I have 2x Dell U2412M at work and 2x Dell U3415W at home.
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Fri, 18 May 2018, 17:14:06: Quote from: bizzy11 on Fri, 18 May 2018, 15:56:32
I've never calibrated my monitors, but when I looked it up it said that these monitors are always calibrated before leaving the factory.

I have 2x Dell U2412M at work and 2x Dell U3415W at home.

bizzy11.. it's a LIE..

All of those monitors are only calibrated at the factory to Delta E < 3 or < 5..

The goal is < 1

As soon as you turn them on, within the first month of burn in, that will drift > 5, some values > 10..

The factory calibration only ensures that the color isn't SUPER messed up like in my first post with all the red bars.

But given even 50-100 hours of use, you can expect significant drift....

These things are Alive and ever changing..
Title: Re: Do you Calibrate ?
Post by: bizzy11 on Fri, 18 May 2018, 18:04:47: Damn it. Not sure if I wanna spend $200 on one of those calibrating tools though lol.

Are you pretty happy with the one you have?
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Fri, 18 May 2018, 18:35:37: Quote from: bizzy11 on Fri, 18 May 2018, 18:04:47
Damn it. Not sure if I wanna spend $200 on one of those calibrating tools though lol.

Are you pretty happy with the one you have?

It's like a pair of shoes u know? it kind of stretches and wears.. hahahahaha

If you're using mainly IPS, I think the spyder5 probe is fine..

If you're planning on getting a VA panel or Oled, I'd recommend waiting for either the colormunki or the i1display-pro, because those can read a bit deeper into blacks.

Deep black reads are not necessary for IPS, because IPS black point is pretty high..

The spyder5 probe goes on sale for $100 , as does the colormunki.

The cheapest the i1display-pro has been is ~$160, but i don't think that will happen anytime soon again, because the only reason it was on sale last time, is because the company did a re-certification for on a newer revisions, which made retailers drop the price on the Older revision.

The only real difference between the i1display and the colormunki is that the pro is factory verified, how stringent, no one knows..

For the colormunki, it's the same hardware as the i1display, but it has an artificially imposed read speed limit.. **** m0ve, no real benefit in practice for general consumer, because we don't calibrate every week. .
Title: Re: Do you Calibrate ?
Post by: JP on Fri, 18 May 2018, 18:39:23: How do I calibrate myself?
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Fri, 18 May 2018, 18:41:22: Quote from: JP on Fri, 18 May 2018, 18:39:23
How do I calibrate myself?

Squirt contact lens fluid into your eyes, until you come to witness the face of god.. !!

(https://i.imgur.com/1uEw5z3.gif)
Title: Re: Do you Calibrate ?
Post by: bizzy11 on Fri, 18 May 2018, 20:21:36: Eh might just go with the colormunki when it's on sale then, I don't really plan on upgrading my monitors anytime soon.
Title: Re: Do you Calibrate ?
Post by: JP on Sat, 19 May 2018, 08:05:19: Quote from: tp4tissue on Fri, 18 May 2018, 18:41:22
Quote from: JP on Fri, 18 May 2018, 18:39:23
How do I calibrate myself?

Squirt contact lens fluid into your eyes, until you come to witness the face of god.. !!

Show Image
(https://i.imgur.com/1uEw5z3.gif)

I just tried it. I think I died but my mind is clear and I see everything now as it truly is.
Title: Re: Do you Calibrate ?
Post by: tp4tissue on Sat, 19 May 2018, 08:46:35: Quote from: JP on Sat, 19 May 2018, 08:05:19
Quote from: tp4tissue on Fri, 18 May 2018, 18:41:22
Quote from: JP on Fri, 18 May 2018, 18:39:23
How do I calibrate myself?

Squirt contact lens fluid into your eyes, until you come to witness the face of god.. !!

Show Image
(https://i.imgur.com/1uEw5z3.gif)

I just tried it. I think I died but my mind is clear and I see everything now as it truly is.

Hahahahaha.

If you're doing this by eye, you can get it to Look pretty good just by minimizing the -Black level- of the display.

http://www.lagom.nl/lcd-test/black.php

Zoom in on the 1st black square, adjust the brightness or gamma of your display until this square pops out just barely above the black background.

http://www.lagom.nl/lcd-test/white.php

On this page, zoom in on the last 254 square, and LOWER your contrast until you can JUST BARELY see the pattern
Title: Re: Do you Calibrate ?
Post by: JianYang on Sat, 19 May 2018, 11:34:28: Closest I got to calibration was to only buy monitors that come with a calibration certificate. I know it is not a replacement for proper calibration, but it's good enough for me.