EPSON RGB Printing Guide OSX

EPSON RGB Printing Guide OSX
EPSON Australia
RGB workflow for
Adobe Photoshop CS
Macintosh OSX
Calibration:
The Beginning
• The most essential part of the RGB workflow is
Monitor Calibration.
No calibrated monitor No workflow
• Calibration is placing a device into a known
(standard) state.
• Calibration must be performed before profiling.
• Some monitors such as LCD screens and laptops
are harder to profile.
• Hardware profiling devices are the best way to
obtain a correct result.
Software Monitor
Calibration
• The following shows how to calibrate your monitor
using the OSX supplied software.
• This solution is an adequate workaround if no
hardware device is available.
OSX Screen Calibrator
•
•
Select the System
Preferences.
Select Displays.
OSX Screen Calibrator
•
•
•
Select Millions in the
Colors menu.
Pick the preferred
screen resolution.
Change the Contrast
slider to full.
OSX Screen Calibrator
•
Select the Calibrate
button.
OSX Screen Calibrator
• Select Expert
Mode.
• Select the Next
Arrow.
OSX Screen Calibrator
• Follow the
instructions and
adjust the sliders
accordingly.
• Select the Next
arrow.
OSX Screen Calibrator
•
Select the preferred Target
Gamma.
•
Select the Next Arrow.
NOTE:
The monitor gamma of 1.8 on Macs roughly
approximates the dot gain curve of the Apple
LaserWriter. This is actually grayscale
management used in the days of
monochrome monitors.
A target gamma of 2.2 produces smooth
display of gradients with little or no visible
banding or posterisation.
OSX Screen Calibrator
• Select a white
point of D65.
•
Select the Next
Arrow.
D65 produces a cooler white point
than D50. The eye takes a little time
to adjust to changes in brightness,
but has little trouble viewing colour
images in a 6500k monitor then
moving to view the same printed
image in a 5000k viewing booth.
OSX Screen Calibrator
•
•
Name the Profile.
Select Create.
OSX Screen Calibrator
•
Note that the
created profile now
appears in the
Display Profile
dialogue box.
OSX Screen Calibrator Conclusion
•
•
•
•
•
OSX Screen Calibrator is a no cost alternative.
Some monitors come equipped with their own calibration
hardware and software.
Alternatively, stand-alone solutions are available, the most
popular being Gretag Eye One Monitor or Color Vision Monitor
Spyder. These types of devices are the most accurate way of
profiling.
Profiling hardware and software can cost anywhere between
$A500 to $A20,000.
There are independent companies that specialise in profiling
and workflow management.
Photoshop Colour Settings
• Select Color Settings
from the Photoshop
menu
• Select Adobe RGB
1998.
Photoshop Colour Settings
• Enter these settings
for your Color
Management Policies.
This will alert when images are
opened displaying the profile they
are tagged with, allowing the
change to the current working
space.
Photoshop Colour Settings
• Enter these settings
for your Conversion
Options.
Only use the Adobe (ACE)
engine and the Relative
Colorimetric Rendering
Intent.
(See Photoshop CS Help for further information)
Photoshop Colour Settings
• Click on the Save
button and give your
settings a suitable
name.
Obtaining Paper Profiles
•
•
•
•
•
EPSON Supply profiles for the majority of their Printer range.
The Photo and Pro Graphics printer drivers for Macintosh
automatically install paper profiles into your ColorSync folder for
each type of media.
EPSON also recommends the Bill Atkinson profiles for the
EPSON Stylus Pro 7600/9600 downloadable from the EPSON
US Website. These profiles need to be placed in the ColorSync
folder. (Installation procedure with profiles)
Printer profiles can be produced using hardware supplied by
companies such as Gretag MacBeth and Xrite.
There are individual companies that specialise in printer
profiling.
Soft Proofing
Soft Proofing Settings
• Soft Proofing is used to simulate the printed output
on screen.
• This is not a 100% true representation only a
simulation.
• The Soft Proofing function does not change the
actual characteristics of the image; only the preview.
Soft Proofing Settings
•
•
•
•
Select; View>Proof
Setup>Custom.
Select the printer and
media type being used.
Select the intent.
Select Black Point
Compensation when
using the Relative
Colorimetric Rendering
Intent. Leaving this
checked with
Perceptual Intent won’t
matter.
Switching between Perceptual and Relative
Colorimetric can produce different results. Either can be
favorable. Saturation is not recommended nor is
Absolute Colorimetric for RGB photographic printing
Soft Proofing
• Turning the
Preview on an off
shows the effect of
the selected profile
and rendering
intent.
Printing Using the ICC
Profile
• There are two recommended workflows for printing
using ICC Profiles.
• Workflow 1 is used to preserve the original data.
• Workflow 2 is used to convert the original data and
embed the ICC Profile for printing to an outside
source.
Workflow 1
Printing: Workflow 1
•
•
•
•
Select; File > Print
Preview.
Source Profile is
embedded from the
Photoshop Colour
Settings.
Select the Print Space
that was chosen in the
Soft Proof option.
Select the preferred
Intent.
The Intent and Black Point should match those selected
in the Soft Proof Dialogue Box.
Printing: Workflow 1
•
•
•
Select the Media Type.
Select the Advanced
Settings.
Set the Print Quality
and print speed.
Printing: Workflow 1
•
•
•
Select Color
Management.
Select No Color
Adjustment.
Select Print.
By selecting the No Color
Adjustment setting, any extra
color management in the driver is
disabled allowing the ICC profile
to control the color.
Workflow 2
Printing: Workflow 2
•
•
•
•
•
Select: Image > Mode >
Convert to Profile.
Select the media Profile.
Leave the Engine as
Adobe(ACE).
Choose the Intent.
Leave the rest as default.
These settings should match the
Soft Proof settings.
Printing: Workflow 2
• Select OK, to the Convert to Profile dialogue box.
• This will embed the Profile into the file.
• This image is now "purposed" for a particular printer
and paper combination. Printing on another device or
paper may produce unsatisfactory results.
Printing: Workflow 2
•
•
•
Select; File > Print
Preview.
Profile is now embedded.
Leave Profile,
Same as Source.
Printing: Workflow 2
•
•
•
Select the Media Type.
Select the Advanced
Settings.
Set the Print Quality
and print speed.
Printing: Workflow 1
•
•
•
Select Color
Management.
Select No Color
Adjustment.
Select Print.
By selecting the No Color
Adjustment setting, any extra
color management in the driver is
disabled allowing the embedded
ICC profile to control the color.
Conclusion
•
•
•
The settings suggested in this presentation are only a starting
point to assist in your awareness of RGB colour management.
Further experimentation and research is encouraged to
understand colour management at a higher level.
The use of Genuine EPSON Inks and Media is paramount in
obtaining the best results from your printer to produce the best
quality images possible.
Web Links
www.epson.com.au
www.digitaldog.net
www.computer-darkroom.co.uk
www.adobe.com
www.apple.com
Reference Material
Real World Color Management.
Bruce Fraser, Chris Murphy and Fred Bunting
Published by Peachpit Press.
ISBN 0-201-77340-6
Adobe Photoshop CS Help Menu
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