Icc profiles and optimum resolution

hi all,
i am interested in these iphoto books, but was curious if anyone had found a profile for the books so that images could be soft proofed beforehand in photoshop?
i was also wondering if anyone had found what is the optimum resolution for these books? or what people are using for file sizes in the different books?
thanks in advance for any answers! i appreciate the help!
best,
corey

hendrix75:
Welcome to the Apple Discussions. As far as the color profile is concerned I know that the sRGB is used by Apple for books and prints. How you might use that with Photoshop and the pdf's is not in my area of experience.
In regards to the size of the image file for each picture it depends on the camera you're using. I try to use the maximum size which is 2272 x 1704. Since that's already at the recommended 4:3 ratio I don't need to do any cropping before using.
We've learned to change the dpi setting for the pdf book that iPhoto creates for uploading and printing from the default 150 to 300. The easiest way to do that is as follows:
Method to increase the print resolution for books:
1 - download and run Pref Setter.
2 - open the iPhoto preference file from within Pref Setter.
3 - locate the Keys titled BookTargetMediumImageDPI, BookTargetSmallImageDPI and BookTargetImageDPI.
4 - change their current values to 300.
5 - save and quit Pref Setter.
I've found that even with the increased dpi settings the medium books exhibit a pronounced halftone pattern in the images. For my intended use of the medium books I ordered that was acceptable. Maybe not for others. I've had very good results with the large, hardcover books both at 150 and 300 dpi. They must be using different presses, etc. on the large books as opposed to the medium and small ones.

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Steven,
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ignore them.
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I'm going to give you a link to Dry Creek Photo
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Hi,
I got an Epson Stylus Pro 3880 and Epson Hot Press paper which, upon investigation, received great profeesional reviews and, having never printed digitally before, I don't know how to use profiles for soft proofing or printing.
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Raphael,
A good reply is going to require a full-size keyboard, which I don't have access to just now. Here are some starter pages:
http://www.cambridgeincolour.com/tutorials/soft-proofing.htm
http://www.luminous-landscape.com/tutorials/soft-proofing.shtml (a bit grumpy and out-dated)
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--Kirby.
(Sent from my magic glass.)

How to apply ICC profiles on all the photos in preset before printing.   and user preset

Hi,
hope someone can point me to the right direction.. I have 2 questions about ICC profiles and settings in lightroom.
1.) I found that many photos that I have is a little two blue. There are thousands of photos. I would like to know if there is a way in Lightroom to "Autobatch" the changes to all those photos.
The changes are under "white balance" -> "temp" -> (need to increase by 2)
2.) I will send out the photos to print . According to the photo stores tech, I can apply their ICC (printer/paper) profiles before sending the files to them. So, it will have better match how the photos come out.
Last time I printed some photos with them, many of the come out too dark.   But it looks fine on screen, and a little too red if I use my own inkject printer. I hope I correct this.
If it cannot be done in lightroom, it can only be done with Photoshop, please let me know. I will try to use other computer with PS installed.   just let me know the steps.
Thanks in advance.

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1. The enable / disable is confusing - the toggle switch to turn it on, changes the button label to "Auto Sync" to indicate that it is on. But, this is highly un-conventional and confusing - usually a button label indicates what will happen when you click, not that it is on, and clicking it will actually turns it off - bass-freakin'-ackwards if you ask me!... (Add to it the toggle switch tooltip is the same in both cases - indicating that the switch will enable it, when actually, in one case it will enable, but in the other case it will disable...)
2. Some simple UI difference that you can't ignore but doesn't bug the ship out of you either, when auto-sync is on: maybe a red-tint to the slider draggers or something...
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PS CS5 Image Display Differs From Used ICC Profile In Win 7

Hi,
on my Windows 7 Ultimate x64 machine, I just calibrated my Dell SP2309W monitor using an i1DisplayPro and basICColor 5, creating a ICC v2 profile (I am aware of the problems under Windows with ICC v4 profiles).
It created the ICC profile and applied it to be used by Windows. I double checked under COLOR MANAGEMENT that the new ICC profile is being used. Although I can see that the new ICC is being used (desktop appearance changes), there are a few issues I am experiencing:
(1.) Windows Photo Viewer
The thumbnails in Windpows Explorer look fine (they DO use the new ICC profile), when I double click a jpeg and open the image it DOES NOT use the new ICC profile. When I click the PLAY SLIDESHOW button (starting the slideshow) in the opened image in Windows Photo Viewer, the images DO use the new ICC profile.
(2.) Internet Browsers
All current internet browser (Firefox, IE, Safari and Chrome) DO use the new ICC profile and display the image correctly.
(3.) Photoshop CS 5
When I open the same image - that Windows Photo Viewer does not correctly displays (according to the new ICC profile) - in Photoshop CS5, I get the same image display that Windows Photo Viewer gives me (when not thumbnail or not in slideshow mode) - it appears to be the sRGB display.
My color settings in PS CS5 are: North America General Purpose 2 > sRGB IEC 61966-2.1.
When I go to View > Proof Setup > Monitor RGB I get the image display using the new ICC profile.
Why does the image look different in PS than my calibrated monitor should output ?
I was under the impression (please correct me if I am wrong), that the sole purpose for calibrating my monitor was to get a uniform display across (ICC aware) applications. Even when one applies different color spaces to a document in PS, I thought the output on my calibrated screen done by the graphic card should always be according to my calibration and the settings in the ICC profile being used.
What Am I doing wrong or what am I misunderstanding ?
Any help or input is appreciated !
Thanks.
- M

Hello,
A note on monitor calibration: calibrating your monitor will not guarentee that every application will display color correctly, it's more of a step along the pipeline, and for the preview part of a color workflow it's the last step. Here's how color translation follows for an ICC workflow when previewing to a monitor:
Image Color Numbers > Document Tag or Workspace Profile > Monitor Profile
For non-color managed applications, if the original document is or isn't tagged with a color profile it will be translated directly to the monitor profile anyway. This is the equivalent in Photoshop of selecting "Monitor" in soft proofing. Selecting monitor in softproofing will bypass the tagged or workspace profile to translate colors directly through the monitor profile.
For most automatic color managed applications (like Firefox), the image will be translated through the tagged profile and then sent through the monitor profile. If the image is untagged or the profile is unrecognized, the colors get sent directly to the monitor profile.
For Photoshop, a tagged document will have its profile respected and then sent to the monitor. An untagged document will be assigned the workspace profile, which acts like a temporary document profile, and then gets sent to the monitor. This is often why users will notice Photoshop behaves differently from other applications. It's usually a case of the workspace coming into play. By default the workspace profile is set to sRGB. You can change this in Edit > Color Settings.
The purpose of the workspace is originally for printing workflows, as a way of keeping consistant color translations when dealing with both tagged and untagged documents. For web output workflows it can be useful for viewing everything through sRGB, which is typical of the average monitor output (not so with newer wide-gamut monitors, another source of confusion...) combined with the fact that originally most web browsers were not color managed. Hence viewing everything through sRGB is pretty close to what most monitors see and what untagged/unmanaged docs will look like.
Monitor calibration is useful only because it brings your monitor output to a "known state". In traditional workflows the monitor was always a middle-man, a preview device which was useful for getting an idea of what the printed output would look like before you print it. Since print colorspaces are often smaller than display spaces, it's feasible and useful to narrow down the monitor/display space and calibrate it to a known state, so that even if it doesn't totally match the print, you'll get used to its differences/limitations and they'll be consistent so long as the calibration is maintained.
For web output, your final output is often another user's computer monitor, which can have any form of behavior (most standard monitors are pretty close to sRGB, or use sRGB as an operating system workspace (default monitor profile). Wide gamuts behave differently, but I'm not sure if there's a particular ICC space that they closely match, or if different wide-gamuts are even that close to each other in their display color spaces.
Hope this helps!

Display profiles and soft proofing Windows RGB / Monitor RGB

This might have asked before, but I did not find any definite answer for this. Sorry this gets a bit long.
Short question:
What's the difference between softproofing with Windows RGB and Monitor RGB targets? I see differences in my image between these targets.
Long question(s):
Here's some reasoning.. let me know when I go wrong.
I have hardware calibrated my display Spyder 3 elite to sRGB standard. I have understood that the generated display profile contains a LUT table that affects gamma values for each RGB component, so that affects both gamma and color temperature. That table is loaded into video card when Windows starts. In addition to the LUT table, the display profile contains what? Probably information on what color space the display has been calibrated to. Does that matches directly with the LUT table information, but may deviate from sRGB in the case my monitor cannot reproduce sRGB 100%?
Now if I have image that that is in sRGB, but the embedded sRGB profile has been stripped away, should any non color management aware image viewer show the colors properly, if it is assumed that 1) my monitor can handle full sRGB space and 2) my monitor was succesfully calibrated to sRGB and the LUT table has been loaded into video card?
Or does it still require a color management aware program to show the image, which implies that the LUT table information alone is not enough and the display profile contains some extra information that is needed to show the image correctly? I would think this is true, as I needed to turn on color management in Canon Zoom Browser to see images in it the same way as in Photoshop.
Now to the original question, what's the difference in Photoshop when soft proofing with Windows RGB and Monitor RGB targets
I read from www.gballard.net that
Photoshop can effectively "SoftProof" our web browser color:
Photoshop: View> Proof SetUp> Windows RGB
Photoshop's Soft Proof screen preview here simulates how unmanaged applications, web browsers, will display the file on 2.2 gamma monitors, based on the sRGB profile. If the file is based on sRGB and our monitor gamma is 2.2 and D/65 6500 degrees Kelvin, we should see very little shift here, which is the goal.
Photoshop: View> Proof SetUp> Monitor RGB
THIS IS WHERE the color-brightness-saturation problem will repeat consistantly.
Soft Proofing Monitor RGB here strips-ignores the embedded ICC profile and Assigns-Assumes-Applies the Monitor profile or color space.
The color and density changes seen here show the difference between the monitor profile and the source profile sRGB.
I'm not sure how to read that. Assume here that my monitor has been calibrated to sRGB and the PS working space sRGB. Do in both cases photoshop strip away color profile from the image at first? What happens after that? Does in Windows RGB case Photoshop pass the color values as they are to display? What does it do in "Monitor RGB" case then? Does it assign my monitor profile to the image? If it does, does there also happen conversion from one color space to another? In either one conversion there must happen as the soft proofing results are different. Does either one cause "double profiling" to the image as the monitor is already calibrated?
Thanks

Windows defaults to sRGB if you don't calibrate your monitor so untagged sRGB files should display (more or less) correctly in applications that don't know about color management on systems with uncalibrated monitors.
When proofing against Windows RGB you're proofing against sRGB, it will show you how applications that don't know about color management on an uncalibrated monitor will show the image. This is what you proof against if you want to see how the image will display in web browsers.
When you proof against Monitor RGB, Photoshop will assign your monitor's icc profile to the image which tends to be utterly useless most of the time.

Please, please, please make ICC profile info available for RGB files.

I know, I know, I know - if everything's working properly one should never care what the icc profile is that's being used to interpret the colors in a file. And good people shouldn't get killed by falling tree branches... but stuff happens, and sometimes icc profiles are not handled properly and colors are off because the wrong profile is being used or is absent and assumed to be sRGB when that is not correct.
Photographers care about color and nothing is more important than the ICC profile when it comes to properly displaying colors.
I'd also like to see the ability to assign an ICC profile, swap an ICC profile, and convert to specified ICC profile. But I'd be happy enough just to have the icc profile name displayed - I could take it from there...
PS - I'd like to see this feature removed in ten years (I'm an optimist) after all image handling software handles icc profiles correctly, until then... (please).
Thanks in advance,
Rob

Never mind - I just realized this information is available via ExifMeta (plugin) - I retract the request for personal purposes.
Still, it might be worth consideration for people who don't use ExifMeta.
Rob

Icc profiles and optimum resolution

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