Hardware color calibration adjusts the display's internal settings by writing a LUT (Look-Up Table) directly to the display itself.
Software color calibration adjusts the output from the graphics card using an ICC profile applied by the operating system.
Key Differences:
Feature | Hardware Calibration | Software Calibration |
Where it is applied | Inside the display (firmware) | In the computer's operating system |
Consistency across devices | Yes, calibration stays with the display | No, must recalibrate or reapply on each system |
Accuracy | Highest, preferred for professional workflows | Moderate, good for general use |
Requires special hardware | Yes, a Pen Display 24+, a compatible colorimeter, and Calman Studio or Ultimate software. | Only a colorimeter and software |
Summary:
Hardware calibration is more precise and portable, ideal for color-critical work. Software calibration is easier but less consistent across different setups and operating systems.
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