ABSTRACT
This chapter focuses on video display distortion mechanisms and analysis. The signal spectrum arising from scanning comprises a number of discrete components at multiples of the scanning frequencies. The chapter explains measurement of Color Displays, assessment of Color Reproduction, perception of Color Differences and applications of the Zone Plate Signal. The chromaticity and luminance of a portion of a color display device may be measured in several ways. The most fundamental approach involves a complete spectroradiometric measurement followed by computation using tables of color-matching functions. A number of factors may contribute to poor color rendition in a display system. To assess the effect of these factors, it is necessary to define system objectives and establish a method of measuring departures from the objectives. Colorimetric color reproduction requires that the overall gamma of the system, including the camera, the display, and any gamma-adjusting electronics, be unity. The discrete sine wave frequency response measurement technique provides the accurate representation of display performance.
