रंग व्यवस्थापन महत्त्वाचे का आहे?

रंग व्यवस्थापन म्हणजे इंपुट साधनाचा वापर, पडद्यावर रंग दाखवून, आणि रंग व्याप्ति आणि प्रत्येक मिडीयमवरील रंग व्यवस्थापीत करताना त्याची छपाई करण्याची कृती.

रंग व्यवस्थापनकरिता आवश्यकता बऱ्यापैकी हिवाळ्यात हिमन दिवशी पक्ष्याचे फोटोग्राफसह सर्वोत्तमरित्या समजवून सांगते.

हिमन भिंतवरील पक्षी कॅमेरा व्युउ-फाइंडरमध्ये आढळल्याप्रमाणे

डिस्पलेज सहसा निळ्या विहनीला ओव्हर-सॅट्युरेट करतात, ज्यामुळे प्रतिमा थंड दिस्तात.

हे सहसा वापरकर्ता ठराविक बिजनेस लॅपटॉप पडद्यावर पाहतो

Notice how the white is not “paper white” and the black of the eye is now a muddy brown.

विशिष्ट इंकजेट छापईयंत्रवर छपाई करताना हे वापरकर्त्याला दिसते

येथे मूळ अडचण म्हणजे प्रत्येक साधन वेगळ्या रंगाची व्याप्ति हाताळण्यास सक्षम आहे. म्हणजेच जरी तुम्ही इलेक्ट्रिक निळाचे फोटो घेऊ शकत असताना, अनेक छपाईयंत्र त्यास पुन्हा उत्पन करू शकणार नाही.

Most image devices capture in RGB (Red, Green, Blue) and have to convert to CMYK (Cyan, Magenta, Yellow, and Black) to print. Another problem is that you can’t have white ink, and so the whiteness can only be as good as the paper color.

Another problem is units. Without specifying the scale on which a color is measured, we don’t know if 100% red is near infrared or just the deepest red ink in the printer. What is 50% red on one display is probably something like 62% on another display. It’s like telling a person that you’ve just driven 7 units of distance, without the unit you don’t know if that’s 7 kilometers or 7 meters.

In color, we refer to the units as gamut. Gamut is essentially the range of colors that can be reproduced. A device like a DSLR camera might have a very large gamut, being able to capture all the colors in a sunset, but a projector has a very small gamut and all the colors are going to look “washed out”.

In some cases we can correct the device output by altering the data we send to it, but in other cases where that’s not possible (you can’t print electric blue) we need to show the user what the result is going to look like.

For photographs it makes sense to use the full tonal range of a color device, to be able to make smooth changes in color. For other graphics, you might want to match the color exactly, which is important if you’re trying to print a custom mug with the Red Hat logo that has to be the exact Red Hat Red.