Colorimetry software running on the computer then proceeds through a series of checks, using the colorimeter to measure the colors produced by the monitor. The colorimeter attaches to the computer, typically through a USB port, and hangs in front of the monitor. However, it is possible to bring the truest possible color reproduction to your electronic device using a tool called a colorimeter.Ī colorimeter is a specialized hardware tool that is used to profile the color properties of a monitor or other display device. The differences in the way colors are perceived, combined with natural limitations of electronic devices and the imprecise replacement of colors outside the gamut, mean the colors on your monitor will never exactly match the colors you see with your eye. Cultural conditions influence what our brain recognizes as "pure white." For example, Asians prefer red shades of white, and Central Europeans prefer blue. What the brain perceives as "white" is defined by a whole series of factors, not just the perceived wavelengths. For mixed colors such as yellow – composed of green and red on the monitor – the printer may sometimes be better than the monitor assuming that this color is available as a process color. The eye is particularly sensitive to tones in the green range and can detect far more nuances of green in nature than a monitor shows.
Colors outside the gamut appear in replacement colors, which leads to distortions.ĭifferent colors have different effects on the human eye. Image-processing experts use the term gamut to describe the possible colors a device can produce by internal mixing. Another problem is that color values often shift as the image makes its way through the chain of devices, from the camera, to the monitor, and finally the printer.Įach device can only absorb and process colors to a limited extent. The human eye adapts much better than a camera to different lighting conditions and automatically supplements missing information. Colors are lost on the way from the camera to the image. Anyone who has ever tried to reconcile an electronic image with nature will be familiar with the problem: The colors in the image almost always differ from what you see with your eyes.
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