Computer Graphics with Photoshop - color profile/color management help

Author

color profile/color management help

2004-10-02, 12:14 pm

What I'm using:
I have taken photos with a Canon 10D digital camera set on Adobe RGB color
profile,
I use Adobe Photoshop 6.0 for opening the file, and in photoshop, my color
settings are set to Adobe RGB (1998)
and when I print, I am printing the Adobe RGB for the print space.

What my problem is:
I have erased a small area of the photo to attempt to get a value of pure
white 255 for all three colors, and it appears white in photoshop, but when
it prints to my HP Photosmart printer, the "white" area has a tinge of
yellow beige.
Shouldn't it be as white as the HP photo paper premium glossy paper that it
is printe on?

Solutions?:
Any help is much appreciated. What I'm trying to do is to make sure that I
accurate reproduces skin and teeth tones as accurately as possible but I'm
having this stumbling block I'm trying to overcome.

Thanks,
Chris

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Jim

2004-10-02, 12:14 pm

"cc" <chaffinchris@qwest.net> wrote in message
news:cb%6d.67$WH6.45370@news.uswest.net...
> What I'm using:
> I have taken photos with a Canon 10D digital camera set on Adobe RGB color
> profile,
> I use Adobe Photoshop 6.0 for opening the file, and in photoshop, my color
> settings are set to Adobe RGB (1998)
> and when I print, I am printing the Adobe RGB for the print space.
>
> What my problem is:
> I have erased a small area of the photo to attempt to get a value of pure
> white 255 for all three colors, and it appears white in photoshop, but
when
> it prints to my HP Photosmart printer, the "white" area has a tinge of
> yellow beige.
> Shouldn't it be as white as the HP photo paper premium glossy paper that
it
> is printe on?
>
> Solutions?:
> Any help is much appreciated. What I'm trying to do is to make sure that
I
> accurate reproduces skin and teeth tones as accurately as possible but I'm
> having this stumbling block I'm trying to overcome.
>
> Thanks,
> Chris
Have you created a profile for your monitor? (unlikely to agree with Adobe
RGB)
I use an Epson 1280, and I use the profile that Adobe or Epson supplied (not
certain which one did this).
The result is that I am quite happy with the output.
You set up the printer through the Print with Preview tab.

In your case, the printer is putting a small amount of the yellow ink on the
paper when it should not.
Jim

Mike Russell

2004-10-02, 12:14 pm

"cc" <chaffinchris@qwest.net> wrote in message
news:cb%6d.67$WH6.45370@news.uswest.net...
> What I'm using:
> I have taken photos with a Canon 10D digital camera set on Adobe RGB
> color profile,
> I use Adobe Photoshop 6.0 for opening the file, and in photoshop, my
> color settings are set to Adobe RGB (1998)
> and when I print, I am printing the Adobe RGB for the print space.
>
> What my problem is:
> I have erased a small area of the photo to attempt to get a value
> of pure white 255 for all three colors, and it appears white in
> photoshop, but when it prints to my HP Photosmart printer, the
> "white" area has a tinge of yellow beige.
> Shouldn't it be as white as the HP photo paper premium glossy paper
> that it is printe on?
>
> Solutions?:
> Any help is much appreciated. What I'm trying to do is to make sure
> that I accurate reproduces skin and teeth tones as accurately as
> possible but I'm having this stumbling block I'm trying to overcome.
>
> Thanks,
> Chris

One possible cause for the yellow is that your monitor color temp is set too
low. If you set it to 5000K aka D50 in Adobe Gamma, try upping it to 6500.
If it's already at 6500, you can try playing around with the monitor color
temp, but that's probably not the problem.

You could just have hosed up color settings. Check out Ian Lyons (there are
versions for each version of Photoshop, so look around a bit if you are not
using CS):
http://www.computer-darkroom.com/ps...7_print_mac.htm
--

Mike Russell
www.curvemeister.com
www.geigy.2y.net

John McWilliams

2004-10-02, 12:14 pm

Mike Russell wrote:

> "cc" <chaffinchris@qwest.net> wrote in message
> news:cb%6d.67$WH6.45370@news.uswest.net...
>
>
>
> One possible cause for the yellow is that your monitor color temp is set too
> low. If you set it to 5000K aka D50 in Adobe Gamma, try upping it to 6500.
> If it's already at 6500, you can try playing around with the monitor color
> temp, but that's probably not the problem.
>
> You could just have hosed up color settings. Check out Ian Lyons (there are
> versions for each version of Photoshop, so look around a bit if you are not
> using CS):
> http://www.computer-darkroom.com/ps...7_print_mac.htm

Some how, the "erasing" part of the image to get a white point seems off.

--
John McWilliams

Mike Russell

2004-10-02, 12:14 pm

John McWilliams wrote:
> Mike Russell wrote:
>
>
> Some how, the "erasing" part of the image to get a white point seems
> off.

Try specifying, as per the Lyons web page, Printer Color Management instead
of Adobe RGB.
--

Mike Russell
www.curvemeister.com
www.geigy.2y.net

John McWilliams

2004-10-04, 4:14 am