Measures a monitor's ability to display accurately at a high resolution. Higher scores are better. White-Level Shift Tests whether white and black levels are affected by the image on the screen. Color Registration Error Measures a scanner's ability to produce clean edges between colors. Lower scores are better.
Lower scores are better.
Noise Measures aberrant noise introduced by the internal circuitry, as well as flaws in and contamination of the optical system. Lower scores are better. Resolution Measures how many line pairs the scanner can accurately resolve per millimeter. Higher scores are better. Uniformity Error Tests for uniform gray levels across a scanned target.