一种带透明光栅的感光板

A Sensitive Plate With Transparent Grating

本文提出了一种新的带透明光栅的感光板,用这种感光板实现黑白图像的密度假彩色化是十分方便的。使用者只需将此感光板与黑白底片密接触曝光,再经简单冲冼即可。其结果不仅免去了一般编码过程中使用的朗奇光栅和放大机,而且避免了因使用朗奇光栅所带来的缺欠。因此,它是用于位相假彩色处理中的较为理想的感光板。

This paper presents a sensitive plate with transparent grating. It is quite convenient to use the plate to convert a black-and-white picture into a density pseudocolor-image. Users need only place the black-and-white picture and the plate in immediate contact with cach other and expose them simultaneously. Through simple development, an encoded phase transparency is obtained. That transparency is put on the input plane of a white—light processor and the density pseudocolor-image on the output plane is produced by the spatial filering.