How can spatial luminance of monitors be effectively measured?

Measuring the spatial luminance of monitors is effectively done using special meters. These devices are specifically designed to quantify light output in various forms, including brightness and color, by measuring the luminance levels across different areas of the screen.

Special meters, such as photometers or colorimeters, provide precise and objective measurements, allowing for calibration and optimization of display devices to ensure visual consistency and accuracy. This accuracy is crucial in fields like medical imaging, where exact luminance levels can significantly impact diagnostic quality.

While the options, like the human eye or software algorithms, may provide insights or approximations about luminance, they lack the precision and reliability offered by specialized measurement tools. The Society of Motion Picture and Television Engineers (SMPTE), while providing standards and guidelines, does not measure luminance directly but rather offers frameworks for understanding and implementing best practices in imaging and display technologies.