----- Original Message -----
From: "Joaquim Carvalho"
Subject: Re: monitor calibration
On Fri, 2005-06-17 at 17:12, William Robb wrote:
Colour perception, like all perceptions, is subjective.
Colour accuracy is not.
Your computer room example may make your colour perception happy, but it
won't make the colour coming off your system accurate.
You can only do accurate color work if your perception is happy.
Unless you're taking pictures of it you don't need the color on your
monitor to be accurate but you really need to see it as accurate
If the color on your monitor is accurate but you don't perceive it as
accurate you won't do accurate color work. In this case perception is
more important than reality.
No, you can only do accurate work if your equipment is properly calibrated.
If your perceptions are off, then you are going to have colour accuracy
problems unless you calibrate your equipment.
If you want the colour to be accurate, then you need to train your eye to
see colour accurately.
I run into this sort of argument from time to time from customers who have
taken pictures late in the afternoon when the light is very warm, and then
complaining that their pictures are yellow.
Their incorrect perception is getting in the way of accurate colour
rendition.
As much as possible commercial photo labs do colour by the numbers.
Neutral gray is 80/80/80, not 75/85/80 some such.
We do it this way to ensure that incorrect colour perception doesn't make
for inaccurate colour pictures.
William Robb
