Abstract
The effects of manipulating image noise and image blur were determined on an information extraction task using soft-copy displays. The participants in this study were 15 military photointerpreters from Langley Air Force Base, Virginia. The empirical findings indicated that the main effect of image noise was statistically significant (p < 0.002) as was the main effect of image blur (p = 0.060). The noise by blur interaction was not statistically significant (p = .872). In general, image interpretation performance decreased with increasing image noise and image blur levels. This pattern of results was very similar to the empirical observations of a previous study which employed the same image and task conditions for hard-copy displays.
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