Color Management and Proofing, from Monitor to Press
The Secret to Accurate, Eye-Pleasing Color
Do you know the old joke about the guy who asked a taxi
driver how to get to Carnegie Hall? The driver replied, “Practice.” Creating
beautiful printed pieces also takes a fair amount of practice. We continually
work on color management and color proofing to create the best results for you.
This article will help explain what we do to help you achieve the color quality
you expect.
Our main goal sounds simple: Make the printed piece look
like what you saw on your computer monitor. But right away, we have a problem.
The light you see on the monitor is made by combining red, green and blue light
and shining the result into your eyes. However, the color you see when you look
at a printed piece is created by reflecting white light through translucent
cyan, magenta, yellow and black inks that subtract color (from the white
light).
Our next problem is gamut: Your computer monitor can produce
up to 16.7 million different colors. Our eyes can discern as many as 10 million
colors. But process color printing only produces thousands of colors on a page.
We need to make your image look great with fewer colors than you have on your
monitor.
The kind of light you view your images under will make a
difference in color accuracy, as will the color and finish of your paper. And
then there are effects made by the printing process itself, such as dot gain.
Ink tends to spread as it is squished and absorbed onto paper. We can and do
compensate for dot gain, but it is another variable that is in the way of
accurate color.
Now that you understand the issues, let’s talk about what we
do to ensure that you get the color you expect. We relentlessly follow our
process, which contains three main tools to ensure accurate quality color
reproduction.
In order to ensure that our monitors, proofing devices and
printing presses are producing accurate color, we calibrate them. That is, we
test them and then adjust them until they produce consistent results, day after
day, year after year. If we don’t know how much dot gain a particular press
produces, we can’t compensate for it. If we test it and calibrate it, we know
exactly how much dot gain we need to remove to get quality color. The same is
true of our computer monitors and our proofing devices.
Our second tool is color management software. Once we know
from calibration what our monitors, proofing devices and printers produce when
given a specific color to output, we can tell color management software to
produce a consistent color from device to device. We use various programs,
including Adobe Photoshop, to accomplish color management.
Our most important tool for accurate color reproduction is
the proof. Through calibration and color management, we make our contract
proofs as close to the press as possible. Contract proofs are your best tool
for ensuring that what you see (in the proof) is what you will get in the
finished piece. Be sure to inspect a contract proof of every page of every color
piece you create.
So how do we get you to the Carnegie Hall of printing? We
make it a practice to follow our color proofing and color management processes
to ensure accurate quality color reproduction.
These type of articles are helpful and make your customers more informed about the various aspects of printing high quality materials. Thanks for sharing.
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