关于航摄底片密度指标的质量评价标准

ON THE QUALITY ASSESSMENT CRITERIA FOR THEDENSITY TARGETS OF AERIAL NEGATIVES

本文通过序列光楔的视觉心理实验、基于模糊综合评判的目视评价实验以及大量航摄样片密度指标与微特性指标的测定数据，研究了航摄影像的密度层次特性与视觉特性、微观特性之间的内在联系；并结合密度参数范围的分类统计结果，提出了一套实用的航摄底片密度指标的质量评价标准。

: This paper, based on both: the visual psychology experiment of the series wedge and fuzzey judgement based visual assessment experiment, as well as the measurements of density targets and microcharacteristic targets of the aerial negatives, discusses the internal relation between tonal gradation and visual characteristic as well as microcharac teristic of the,images. Meanwhile, in combination with the statistic results of classifica tion of the density parameter range, a set of practical quality assessment criteria of den sity targets are proposed.