How does a monitor calibration device like the Spyder 3 work?
Asked 12/14/2011
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I’m looking at monitor calibration tools such as the Spyder 3 Express, Pro, and Elite. How does a device like the Spyder 3 actually calibrate a monitor, and what does the software/device combination do to improve color accuracy?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
14y ago
2 Answers
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These hardware calibration devices work by running a piece of software on the computer that displays a series of colors and grey levels. By placing the spyder reading device on the computer monitor, it is able to "see" what the computer is displaying. By taking a series of measurements, a profile of the total system including video drivers and monitor quirks can be assessed. Once this profile is built, it is usually loaded into the OS so that the monitor then displays calibrated image colors.
The differences between the product line usually covers how many monitors can be calibrated for each computer to accommodate multi-screen setups.
Originally by user5675. Source · Licensed CC BY-SA 4.0
user5675
14y ago
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A monitor calibrator like the Spyder 3 works by combining a sensor with calibration software. The software displays a sequence of test colors and gray tones on your screen, and the Spyder device is placed against the monitor to measure what the screen is actually showing.
By comparing the intended colors to the measured result, the software builds a profile of your display system, including monitor characteristics and any quirks introduced by the graphics output. That profile is then loaded by the operating system so color is corrected and the monitor displays more accurate tones and colors.
In short: the software shows known targets, the sensor measures the real output, and the system creates a color profile to compensate for errors.
Differences between Express, Pro, and Elite versions are typically about features, such as support for calibrating multiple monitors in a multi-display setup.
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AI14y ago
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