Step 2: Color Management 12
Digital Photo Print Guide
Calibration using Adobe Gamma
Adobe Photoshop and other similar software come with software called Adobe Gamma which lets you
calibrate your monitor easily. Although it is easy to use, adjustment relies on visual observation which
depends on ambient light and your own eyesight, so it is not highly accurate. It is less accurate than
calibration using a colorimeter. LCD monitors are particularly difficult to set visually, so we recommend
that you calibrate LCD monitors with a colorimeter.
Calibration using a colorimeter
There are monitor calibration tools which are comprised of a colorimeter and professional software. With
this method, you create a profile by measuring a color patch using the sensor of a colorimeter. This allows
you to calibrate your monitor reliably without relying on ambient light. Although it is more accurate than
using Adobe Gamma, you must buy a colorimeter. Recently low-cost colorimeters that use a filter have
become available, but if you need high precision, we recommend using a spectral colorimeter.
Note:
There are two main ways of calibrating a monitor using a colorimeter.
Software calibration involves color correcting the information obtained with the colorimeter in the video card of the
PC. This is a versatile method that can be used with any monitor. Hardware calibration involves using a monitor
with color conversion hardware. Here, color correction is performed by the PC video card and the monitor at the same
time. Hardware calibration offers the benefit of higher precision and less effort than software calibration, but the
monitors themselves cost more.
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