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DPChallenge Forums >> Individual Photograph Discussion >> Do these two look identical?
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Showing posts 26 - 50 of 61, (reverse)
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 05/11/2010 10:53:10 AM · #26
Not good at the color game, but I thought monitors would make a difference, but not browsers. So when I'm viewing my images on firefox I should really see how they look on Chrome as well?
 05/11/2010 10:54:25 AM · #27
Originally posted by BeefnCheez:
look the same on my screen, however the top image has more grain in the sky


Same thing here for me as well. I am on a calibrated screen too.

If you used the save for web feature in photoshop they will both be the same unless you unchecked the "convert to sRGB mode" box.
 05/11/2010 10:55:37 AM · #28
They look identical in color managed viewers. I just looked at my firefox color management settings and I had mine set to 2 (see below). Then the last one looks like a toned-down version of the second one. If I change the firefox setting to 1 they all look identical. Viewed in photoshop they are identical.

0=Color management disabled. (Default in Firefox 3.)
1=Full color management
2=Color management applied only to tagged images. (Default in Firefox 3.5.)

See //forum.fourthirdsphoto.com/archive/index.php/t-55754.html for more info on setting color in firefox.
05/11/2010 11:00:12 AM · #29
Originally posted by shanksware:
Those that are saying they look identical must be viewing them with a color profile enabled browser.


What about all the voters that have a color profile enabled in their browser??? Just think of all the comments people get about color being off or brightness.
 05/11/2010 11:18:36 AM · #30
Originally posted by bohemka:
Not good at the color game, but I thought monitors would make a difference, but not browsers. So when I'm viewing my images on firefox I should really see how they look on Chrome as well?


I have learned something new today, as well. This is something I never realized.
 05/11/2010 11:23:27 AM · #31
I see a huge difference in the two, I have a calibrated monitor using google chrome, from the comments looks like firefox has a better color management setting not sure if there is one in chrome.
 05/11/2010 11:33:40 AM · #32
Originally posted by shanksware:
Those that are saying they look identical must be viewing them with a color profile enabled browser.


Which prompted me to bring 'em up in Chrome. Purple in Chrome, blue in Firefox.

Edit: evidently in Firefox 3.5+ color management is turned on by default.

Message edited by author 2010-05-11 11:35:39.
 05/11/2010 11:35:38 AM · #33
Originally posted by larryslights:
Originally posted by bohemka:
Not good at the color game, but I thought monitors would make a difference, but not browsers. So when I'm viewing my images on firefox I should really see how they look on Chrome as well?


I have learned something new today, as well. This is something I never realized.


Color management in the browser only becomes an issue if you are viewing images that are not saved in the sRGB color space; all browsers display sRGB properly. This is why we should always "save for web and other devices" and be sure the line item "convert to sRGB" is checked off; do that for all DPC images and there will never be an issue, at least as regards color management.

There's still the question of how well-calibrated other folks' monitors are, but there's nothing you can do about that.

R.
 05/11/2010 11:37:03 AM · #34
Originally posted by Bear_Music:
Originally posted by larryslights:
Originally posted by bohemka:
Not good at the color game, but I thought monitors would make a difference, but not browsers. So when I'm viewing my images on firefox I should really see how they look on Chrome as well?


I have learned something new today, as well. This is something I never realized.


Color management in the browser only becomes an issue if you are viewing images that are not saved in the sRGB color space; all browsers display sRGB properly. This is why we should always "save for web and other devices" and be sure the line item "convert to sRGB" is checked off; do that for all DPC images and there will never be an issue, at least as regards color management.

There's still the question of how well-calibrated other folks' monitors are, but there's nothing you can do about that.

R.


By the "checked off" you mean "checked", correct? As in always convert to sRGB.
 05/11/2010 11:37:35 AM · #35
Firefox - identical

Just a note, a profile created with your Spyder is a monitor profile. Also, that profile will only be accessible on your computer. Other computers will have no idea and assume most likely sRGB.

Why the images look the same for some and not for others has got something to do with how the browser is interpreting the colours in the image.

Message edited by author 2010-05-11 11:38:27.
 05/11/2010 11:38:30 AM · #36
Originally posted by Ken:
Originally posted by shanksware:
Those that are saying they look identical must be viewing them with a color profile enabled browser.


Which prompted me to bring 'em up in Chrome. Purple in Chrome, blue in Firefox.

Edit: evidently in Firefox 3.5+ color management is turned on by default.


I just brought them up in chrome too. Wow - I had no idea there was such a difference in color between browsers!
 05/11/2010 11:57:40 AM · #37
The top one has a more purple hue to it and the bottom image has more cyan in it. If it makes a difference, I prefer the second one, it doesn't seem as harsh or overpowering.
 05/11/2010 12:22:13 PM · #38
for me with firefox, minor noise difference
with chrome , huge shift from yellow/red cast to fairly balanced
with explorer, big shift but slightly less than chrome.
 05/11/2010 12:41:15 PM · #39
Originally posted by kashi:
Not the same.

Top image - sky is purple.
Bottom image - sky is blue.

Neither look natural though, definitely over saturated.


yes, I agree with kashi...
 05/11/2010 01:00:52 PM · #40
My monitor is also calibrated and they both look the exact same color-wise, but the top one has more noise.
 05/11/2010 01:01:51 PM · #41
For me they are very different(Using chrome if that makes the difference)

DSC_0391a_small is a lot purpler while DSC_0391b_small is much more natural

Message edited by author 2010-05-11 13:03:14.
 05/11/2010 01:11:49 PM · #42
That's really weird! On my monitor at work viewed through IE7 the difference was huge, but here at home on my Toshiba laptop with Firefox there is none.

This obviously raises the question - what should we be seeing?
 05/11/2010 01:20:59 PM · #43
Tip (for windows users at least) when using a profiled monitor and photoshop.

1. Colour profiles mean nothing if using RAW - I believe RAW doesnt take notice of sRGB or Adobe - only shooting to JPG the colour profile matters. A profile is generally applied to the image when exporting the RAW to JPG (or whatever).

2. Working in a colour space in photoshop. You generally want to work in sRGB (for web work) or Adobe RGB for print work - select your colour space before opening your image in Photoshop (Edit - > Colour Settings) - Under `Working Spaces` select your coloursapce in here - never be tempted to choose the monitor profile - most of the time you will want to use AdobeRGB or sRGB. In colour management policies you only want to play around with the RGB drop box (lets keep things simple here) - generally if you have followed the step above you will leave this on `Convert to working RGB`. The tick boxes below dictate what action photoshop will perform when an image with a different (or missing) profile is opened whilst working in your - ticking them generates a prompt at time of opening letting you choose how to apply differing colour policies.

3. If using a colour profiled monitor but you want to see how your image will look when on a webpage (for the majority of browsers) then you can Soft proof your image. To do this click on View -> Proof Setup then select Monitor RGB - use CTRL-Y to switch softproofing on and off. When on that is a pretty good representation of how it will look on a webpage..

Note - if you view your image in the built in windows previewer you may notice that the images look a bit washed out - ignore this - however I think Adobe Bridge gives a pretty good idea of how an image will look..

I think I have most of this correct - I have different ICC profiles from my album suppliers so I can soft-proof exactly to their printers so allows me to see exactly how my albums will look when printed (it mutes those neon colours only achievable by monitors or specialist pantone inks) took me a while to get my head around it all.

Message edited by author 2010-05-11 13:21:36.
 05/11/2010 01:34:08 PM · #44
Originally posted by Dr.Confuser:
They are nearly identical.

I am color blind, so I took a mathematical approach to this. I "grabbed" them from the screen when displayed in the Safari browser, opened them in Photoshop, stacked them, aligned them, and used the "difference blending" mode on the top layer.

On most of the image, the difference is 1 (+/- 1) on the red channel, 2 (+/- 2) on the green channel and 1 (+/- 1) on the blue channel. Perfectly identical would be 0, 0, 0. These on a scale of 0 to 255. In parts of the sky and the stone, the difference is up to 8, up to 5, and up to 8. In general one is just a bit redder and a bit bluer than the second, most noticeably in the sky and the stone. So while not mathematically identical, they are just noticeably different.

This relates to the pixels themselves, viewed in the Safari browser. Other browsers might render them differently. If you apply my method to your edited versions, you'll see the real differences independent of browser.

Hope that helps.


Best response. :)
 05/11/2010 01:36:16 PM · #45
on my less than stellar monitor here at work, they are very different. teh top one is purplish, significantly so.

at home, they both look like the bottom one.
 05/11/2010 01:40:09 PM · #46
Originally posted by wsteyn:
Maybe I should clarify what is going on.
I used Spider2 to create a monitor color profile and somehow got the notion that I have to use this as my color profile in photoshop as well. My pictures come off my camera in SRGB and when I open them in photoshop it asks me if I want to convert the profile - which I did. Because this is my monitor profile the two images (a with spider2 profile and b with SRGB) are identical, but on any monitor that is not exactly like mine they should be different.
I was viewing some of my pics on a friend's PC when I saw some strange color differences like the blue and purple in this case. So, I believe the correct way to handle the color profiles is to use something like spider to create a profile for you monitor and to use SRGB for everything else.
By the way, the blue does seem unnatural, but it's straight off the camera!

ps. Segovia is a town in Central Spain, just north of Madrid, and it is magnificent.


I have gone through all posts, and considering the whole purpose is TO HAVE THIS PRINTED, it's important to remark the role of the printer color profile pointed out by Simms. You want to adjust color using the designated printer color profile (in a calibrated monitor of course). That is the way to ensure your print will look exactly as you see it in your monitor, unless your printing service does it for you. As an example COSTCO does not do any adjustments, but they publish their printers color profiles so you can download them and make the adjustments on your own.
 05/11/2010 01:40:27 PM · #47
@work...top sky is very purple and the stones are definitely more red toned.
The bottom is my choice as it's mor natural, the sky is blue and the stones look more natural colored as well.
 05/11/2010 01:41:45 PM · #48
Originally posted by nutzito:
As an example COSTCO does not do any adjustments, but they publish their printers color profiles so you can download them and make the adjustments on your own.


Really? - I thought only high-end printers do this... nice one Costco!!

EDIT - saying that - the best profiles are the ones for the exact printer that will be running off your prints - I am assuming that the Costco profiles are only for a certain make/model of printer and not for the exact one your prints will be coming off - but still, you should be in the right ballpark (as long as your monitor is calibrated/profiled correctly)

Message edited by author 2010-05-11 13:45:15.
 05/11/2010 01:43:16 PM · #49
for the record, Costco does do some nice printing.
(I don't work for them, lol.)
 05/11/2010 01:53:18 PM · #50
Originally posted by Simms:
Originally posted by nutzito:
As an example COSTCO does not do any adjustments, but they publish their printers color profiles so you can download them and make the adjustments on your own.


Really? - I thought only high-end printers do this... nice one Costco!!

EDIT - saying that - the best profiles are the ones for the exact printer that will be running off your prints - I am assuming that the Costco profiles are only for a certain make/model of printer and not for the exact one your prints will be coming off - but still, you should be in the right ballpark (as long as your monitor is calibrated/profiled correctly)


That's right. They publish the color profiles for the printers (make/model) they have in each of their locations for each type of paper (each combination of printer/paper has its own color profile). They update it approx. twice a year. The accuracy is outstanding.
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