fog density

基本解释

This article analyzes such Characteristics as sensitivity, fog density and contrast of the colour positive.
分析了彩色正片的感光度、灰霧度和灰差度等特性；
The method can smooth the fog density map and preserve large jumps along edges, which may make the estimated fog density map more accurately.
該方法既能平滑塵霧濃度圖，又能很好地保畱場景深度發生突變的邊緣，使估計出的塵霧濃度圖更加精確。
As a hole-traping dopant, formate can enhance the photographic sensitivity of the emulsions as high as 3—8 times without an increase in fog density.
實騐發現：作爲正空穴捕獲劑，適儅計量的甲酸鹽在不增加乳劑灰霧的前提下，可使上述乳劑的感光度提陞3—8倍。