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DPChallenge Forums >> Hardware and Software >> Aperture 3, OSX Lion, Google Chrome, ColorSpace
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05/12/2012 03:37:53 PM · #1
Okay here's my set up:

MacBook Air:
Color Profile = LCD
OSX Lion
Aperture 3.2.3

Camera:
5D MkII
RAW = Adobe RGB

Aperture Settings:
Proofing set to sRGB
Export Verion = JPG sRGB

I export the version after adjustments and the color has been shifted to a narrower gamut even though the colorspace was correctly embedded. Preview.app and Google Chrome (DPC) show the narrower gamut (lighter and less saturated). The sRGB in proofing mode on Aperture is a much wider gamut than the exported JPG. Has anyone else seen this, this is highly frustrating, and if so, what's the solution?

Message edited by author 2012-05-13 01:13:25.
05/12/2012 03:54:49 PM · #2
Are you using Gamma 1.8 or Gamma 2.2?

Have you checked the box in front of "Black Point Compensation"? (in the edit export version screen)

I do export Adobe RGB (1998) w/ Black Point Compensation selected from Aperture. I have my monitor calibrated to Gamma 2.2 and D65.

I don't convert to the smaller color space sRGB until the last step.

eta: It is unclear to me (after a web search) if Chrome is color managed, or not. Is Your Browser Color-Managed?

Message edited by author 2012-05-12 16:00:07.
05/12/2012 04:04:24 PM · #3
Originally posted by hahn23:

Are you using Gamma 1.8 or Gamma 2.2?

Have you checked the box in front of "Black Point Compensation"? (in the edit export version screen)

I do export Adobe RGB (1998) w/ Black Point Compensation selected from Aperture. I have my monitor calibrated to Gamma 2.2 and D65.

I don't convert to the smaller color space sRGB until the last step.

eta: It is unclear to me (after a web search) if Chrome is color managed, or not. Is Your Browser Color-Managed?


Thanks Hahn. I will check when i get back to my laptop here in 10 minutes or so. I think I just have whatever the default cole space and gamma setting are set to. I do know I don't have the BPC box checked.

Message edited by author 2012-05-12 16:05:24.
05/12/2012 04:07:31 PM · #4
Two more thoughts:

I have onscreen proofing enabled.

I use Adobe RGB (1998) as my proofing profile. (Because it's a larger color space than sRGB.)

These settings are found in the VIEW menu.
05/12/2012 04:18:50 PM · #5
Originally posted by hahn23:

Two more thoughts:

I have onscreen proofing enabled.

I use Adobe RGB (1998) as my proofing profile. (Because it's a larger color space than sRGB.)

These settings are found in the VIEW menu.


I though proofing was to show you the expected output of your known medium? I set the proofing in view to sRGB, but even then I saw no difference in the color even between default, Adobe RGB, and sRGB. But when I export to sRGB, it definitely less saturated and looks more washed out and sort of 'meh.'

I checked, I'm Gamma 2.2 and D65.
05/12/2012 04:20:24 PM · #6
Originally posted by hahn23:

Are you using Gamma 1.8 or Gamma 2.2?

Have you checked the box in front of "Black Point Compensation"? (in the edit export version screen)

I do export Adobe RGB (1998) w/ Black Point Compensation selected from Aperture. I have my monitor calibrated to Gamma 2.2 and D65.

I don't convert to the smaller color space sRGB until the last step.

eta: It is unclear to me (after a web search) if Chrome is color managed, or not. Is Your Browser Color-Managed?


My Google Chrome is indeed color managed, but it shows exactly as shown with the JPG in preview.app.

Message edited by author 2012-05-12 16:21:02.
05/12/2012 04:30:35 PM · #7
Have you checked the box in front of "Black Point Compensation"? (in the edit export version screen)

I think you should have that checked.
05/12/2012 04:34:36 PM · #8
Originally posted by hahn23:

Have you checked the box in front of "Black Point Compensation"? (in the edit export version screen)

I think you should have that checked.


I will try this as I haven't done this yet. Do you export to sRGB?
05/12/2012 04:34:36 PM · #9
One other difference in our export procedures:

I export 16bit TIFFS. When you export JPGs, it implies substantial compression. Try to export TIFFS from Aperture. Convert to 8bit, sRGB, JPGs after you've made all the edit changes you want to make. I use PSE10, but other edit programs should be similar.
05/12/2012 04:37:05 PM · #10
Originally posted by hahn23:

One other difference in our export procedures:

I export 16bit TIFFS. When you export JPGs, it implies substantial compression. Try to export TIFFS from Aperture. Convert to 8bit, sRGB, JPGs after you've made all the edit changes you want to make. I use PSE10, but other edit programs should be similar.


So your flow requires two programs then?
05/12/2012 04:48:56 PM · #11
Originally posted by hahn23:

Have you checked the box in front of "Black Point Compensation"? (in the edit export version screen)

I think you should have that checked.


No change.

Perhaps my gripe is that the proofing profile doesn't match the export, if I just had a way to accurately proof while editing then that's all I'm looking forward to.
05/12/2012 05:00:42 PM · #12
Found a new observation that implies there's something goofy in the export algorithm. If I click and drag the image to the desktop, it exports it as I see it in Aperture. Now this creates a JPG with an Adobe RGB (1998) profile and the preview.app, dpchallenge, and aperture all match across the board. Go figure...
05/12/2012 05:02:05 PM · #13
Originally posted by goinskiing:

Found a new observation that implies there's something goofy in the export algorithm. If I click and drag the image to the desktop, it exports it as I see it in Aperture. Now this creates a JPG with an Adobe RGB (1998) profile and the preview.app, dpchallenge, and aperture all match across the board. Go figure...


AND to top that, if I export as Adobe RGB it looks just like the washed out sRGB, there is something definitely weird.
05/12/2012 09:25:57 PM · #14
Originally posted by goinskiing:

But when I export to sRGB, it definitely less saturated and looks more washed out and sort of 'meh.'

That sounds like it's still in AdobeRGB. If you have Photoshop, hit Convert to Profile and see what the current color space is on an exported JPEG.
05/13/2012 12:06:54 AM · #15
Originally posted by scalvert:

Originally posted by goinskiing:

But when I export to sRGB, it definitely less saturated and looks more washed out and sort of 'meh.'

That sounds like it's still in AdobeRGB. If you have Photoshop, hit Convert to Profile and see what the current color space is on an exported JPEG.


So you're saying that the proofing is still in Adobe RGB or the export?
05/13/2012 12:16:32 AM · #16
I've mentioned this many times on this forum, but it still goes largely unnoticed. Simply converting a profile form Adobe RGB is not enough. You also have to TAG the file as well. The file may be in the right color profile, but it's the TAG that tells programs and browsers which one to use and how to present it.

In no less than 10 to 15 times when I ask people to send me the file in question it's not tagged properly, and it looks exactly how goinskiing describes.

If using Photoshop, the steps I always take if I'm shooting Adobe RGB is to edit the image first, then use the convert to profile option, THEN assign the profile...which is the tag. Both are under the edit menu.

Dave
05/13/2012 12:47:37 AM · #17
Originally posted by DCNUTTER:

I've mentioned this many times on this forum, but it still goes largely unnoticed. Simply converting a profile form Adobe RGB is not enough. You also have to TAG the file as well. The file may be in the right color profile, but it's the TAG that tells programs and browsers which one to use and how to present it.

In no less than 10 to 15 times when I ask people to send me the file in question it's not tagged properly, and it looks exactly how goinskiing describes.

If using Photoshop, the steps I always take if I'm shooting Adobe RGB is to edit the image first, then use the convert to profile option, THEN assign the profile...which is the tag. Both are under the edit menu.

Dave


It appears to be tagged correctly, I believe it's an issue with Aperture's proofing. The proofing appears to be in Adobe RGB even though it says sRGB while I edit. Everything else that I open it in after exporting (assigning in Aperture) shows sRGB and looks the same across the board. If the proofing accurately showed what was being done to the intended space that'd be fine.

On another note, what space do most people on DPC export to, I would assume sRGB? I know that most browsers are color managed these days so how does that affect things? I think this is one reasons I tend to stick to BW (I know, it's sort of a cop-out).
05/13/2012 01:01:59 AM · #18
Aperture 3.2.3 is the current version.

Is that your version, too?
05/13/2012 01:15:13 AM · #19
Originally posted by hahn23:

Aperture 3.2.3 is the current version.

Is that your version, too?


Whoops, my bad. I am on 3.2.3.
05/13/2012 01:20:30 AM · #20
Originally posted by goinskiing:

On another note, what space do most people on DPC export to, I would assume sRGB? I think this is one reasons I tend to stick to BW (I know, it's sort of a cop-out).

Yes and LOL, in that order.
05/13/2012 07:45:29 AM · #21
In System Preferences>>>>Displays>>>>Color tab

Select "Calibrate". Turn on "Expert mode". This turns on extra options.

Somewhere above you mentioned you are using one of the generic calibrations for your display screen. For me, I calibrate my monitor with this calibration assistant about once a month. For what I do, it's important to get a match between the computer display and my print output. It must be exact. The way to accomplish that is to make sure your monitor is properly calibrated. Monitors "drift" over time.
05/13/2012 10:28:40 AM · #22
Originally posted by hahn23:

In System Preferences>>>>Displays>>>>Color tab

Select "Calibrate". Turn on "Expert mode". This turns on extra options.

Somewhere above you mentioned you are using one of the generic calibrations for your display screen. For me, I calibrate my monitor with this calibration assistant about once a month. For what I do, it's important to get a match between the computer display and my print output. It must be exact. The way to accomplish that is to make sure your monitor is properly calibrated. Monitors "drift" over time.


The thing is though that its all relative so I really don't think the monitor is the issue. Now to further complicate things, my imac seems to accurately show in the proofing, export, and in the browsers, all the saturation and color detail all appear correct with sRGB with no shifting, so in editing what I see is what I get but my macbook air doesn't, strange.
05/13/2012 11:01:24 AM · #23
This is all great information, I have much the same setup... problem I have is I need to calibrate my screen on my MBP and desktop with one of the external calibration devices, my attempts manually have not gotten it there yet. I have submitted for several challenges then after votes are in glanced at them on someone else monitor and seen the contrast, colors, tones to be way off from what my glossy MBP screen has, but I guess I need to be doing all this as well. I did notice that they seem to be closer if I re-export them in Photoshop after Aperture. I love the display on the MBP but it seems to be deceiving with the default color setting, are you using the adobe color settings for your MBP, glossy screen or the high-def non glossy?

Nick
05/13/2012 12:49:46 PM · #24
Originally posted by ShutterRev:

This is all great information, I have much the same setup... problem I have is I need to calibrate my screen on my MBP and desktop with one of the external calibration devices, my attempts manually have not gotten it there yet. I have submitted for several challenges then after votes are in glanced at them on someone else monitor and seen the contrast, colors, tones to be way off from what my glossy MBP screen has, but I guess I need to be doing all this as well. I did notice that they seem to be closer if I re-export them in Photoshop after Aperture. I love the display on the MBP but it seems to be deceiving with the default color setting, are you using the adobe color settings for your MBP, glossy screen or the high-def non glossy?

Nick


I am going to run some more experiments between my MacBook air and iMac (during our kids nap of course). I will try to list out the variables, procedures, and results a little later. Hopefully we can learn something. It must be the engineer in me I suppose.
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