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Thread started 24 May 2008 (Saturday) 17:34
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Coour Management ~ tired & not a little confused?

 
Box ­ Brownie
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May 24, 2008 17:34 |  #1

Hi All

Until last night I thought I was happy using Adode Gamma i.e.very closely speaking I think my prints (the few I had done) matched reasonably closely my monitor.

Well having now added soem USB ports to the PC I dug out the Pantone Huey I had bought a while ago.

So having removed Adobe Gamma Loader form the startup folder > reboot > installed Huey v1.0.5 software > ran the Huey calibration I now have my calibrated monitor though it does look a little "cooler" than I recall under Adobe Gamma I also doble checked my brightness & contrast settings prior to running Huey using this page http://www.photofriday​.com/calibrate.php (external link)

Now here is where I am kind of going round in circles.

I have downloaded the calibration image from Peak-Imaging and when that image is viewed in Internet Explorer (non CM viewing) and then compared to the same image opened in PSCS2 there is a marked variation. However, if I have CS2 set for the soft proofing as Monitor RGB (i.e. the Huey profile) they are virtually the same/indistinguishable​). Edit:- both these on screen images compare very well to the actual calibration print supplied by Peak (yes there are differences but they IMO are in the subtle colours ~ the blacks, whites, skin tones, sky and the solid primary colours are all a good match.

Right here is where I am going round in circles ~ for getting prints done at Peak (and many others) the working space is sRGB, so how do I set in CS2 for visual colour matching a set of procedures for adjusting the levels/curves/staurati​on to match the calibration print that can be applied to all prints intended for that print output.

Obviously (?) the intended need is to ensure that any images PPed in CS2 (or other program) are done in an environment that is calibrated to the calibration print, isn't it???

Does the above make any sense???

Having a headcold is not helping me get to grips with this dilemma.

Thoughts, feedback & specific easily digestible guidance would be very much appreciated :)

PS I have so far found the ambient light adjustment function on the Huey fairly useless as when working on the PC during daylight hours the screen variations can be quite large.

PPS Edit - as I am sure you can work out the title should say Colour not Coour :lol:


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Box ­ Brownie
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May 24, 2008 19:41 |  #2

I have been re-reading the very good links in Rene's post sticky and on this one http://www.gballard.ne​t …embeddedJPEGpro​files.html (external link) wher there is mouse over comparisons between ICC profile agged sRGB images about half way down the page, I mouse over and see no difference therefore apparently there is no difference between my Monitor Profile (Huey calibrated) and the sRGB IEC61966-2.1 color space.

So why the heck do I see a difference in CS2 between an image with an embedded sRGB profile and indeed the Peak-Imaging download which actually has no embedded profile and the Monitor RGB??????


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queenbee288
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May 25, 2008 05:47 |  #3

Photoshop is color managed. Internet explorer for instance is not. What you see in photoshop is going to be the truest to what you print. I have never paid any attention to those online comparisons. In photoshop proof it to your paper profile and print.




  
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Box ­ Brownie
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May 25, 2008 09:49 |  #4

Hi Char

Just as point of interest, what I describe above as "cooler" I have realised is a blueish cast ~ such has been reported before for some Huey and Huey Pro units.

Now here is interesting. Pantone say to install the Huey you have to ensure that Adobe Gamma does not load & I did take the steps required to stop it but in the case of the Huey you can remove the Huey 'loader' from the Start Up folder but the profile is still left as default in the Display properties>Settings>Advanced>Colour Management tab. To 'remove' the blue cast I had to reset my Adobe Gamma profile as the default. At this stage I have yet to see whether the Huey profile is removed if you uninstall the Huey software.

I will be contacting Huey about a replacement because of the colour cast. Though surely that will not necessarily overcome (?) the differences in image I talk about above.

:)


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Box ­ Brownie
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May 25, 2008 10:55 |  #5

queenbee288 wrote in post #5591766 (external link)
Photoshop is color managed. Internet explorer for instance is not. What you see in photoshop is going to be the truest to what you print. I have never paid any attention to those online comparisons. In photoshop proof it to your paper profile and print.

Hi Char

Granted PS is CM and IE is not CM.

And yes in PS I see the image and as I do now make adjustments to suit the look of the image as I recall or wish it to appear.

Ref: soft proofing - the lab I will be trying and indeed Photobox who I have used in the past say to use sRGB as the image embedded ICC profile. But and returning to my OP, both Peak and Photobox provide a printed calibration print (which I have) and a downloadable JPEG of the same image. In both instances the print in hand and the JPEG as viewed in IE or soft proofed using Monitor RGB look near as damn identical but in CS2 in sRGB workspace there are differences needing correction.

My presumption was that with a calibrated monitor the image in CS2 should have looked the same as in IE or as soft proofed as above.

As I said I am kind of going round in circles because on the one hand the calib print looks good compared to the monitor whereas the same image in CS2 look 'off'. However, I typically PP my images to suit so anything I do provided it prints up well compared to what I have prepped in CS2 will keep me happy but why do "they" provide a calib print for screen comparison that only looks right in IE and not CS2???

Agh!!!!! ;)


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René ­ Damkot
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May 25, 2008 10:58 |  #6

Box Brownie wrote in post #5589867 (external link)
there is mouse over comparisons between ICC profile agged sRGB images about half way down the page, I mouse over and see no difference therefore apparently there is no difference between my Monitor Profile (Huey calibrated) and the sRGB IEC61966-2.1 color space.

Ehm, no.
The page says: "If your monitor is profiled to 2.2 gamma and 6500 degrees Kelvin, there should be minimum change in the Untagged sRGB rollover."
What the page doesn't mention too clearly (but IMO is logical), is that this is the case in a colormanaged browser.
To a non colormanaged browser, it makes no difference wether or not there is a profile ;)



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Coour Management ~ tired & not a little confused?
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