The recent developed anti-crossover film provides more improved sharpness, but less granurality. In that sense a monistic evaluation using conventional individual evaluating methods is difficult. Used with two kinds of screens, high-speed and low-speed, we compared the image characteristics of the crossover effect regarding anti-crossover film and conventional film of similar speeds, designed for a total evaluation of the image quality by introducing a number of noise- equivalent quanta (NEQ(u)). On the same system of the screen, but at a high frequency anti-crossover film possesses superior NEQ(u), when crossover film at a low frequency, but at a high frequency anti-crossover film possesses superior NEQ(u), when compared with conventional film. These results were in good agreement with the results that had been obtained from images of needles and beads, or ROC analysis.
