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本文提供了用白光信息处理技术作褪色透明彩色照片彩色复原的原理和实验,其中之一是由空间编码和彩色滤波两步骤完成的,即将待处理的透明彩色片用空间编码技术编制在一张黑白感光底片上,在白光光学处理系统的傅里叶平面中对这编码的黑白片的频谱进行彩色滤波,最后在系统的输出平面给出彩色增强或复原的图象,另一种是用白光处理技术作褪色透明彩色片的彩色复原实时处理,它可供及时的直接观察并且有操作简便,成本经济和能灵活多用的特点,这两种技术为彩色图象的彩色增强和复原提供了新方法。A technique of color restoration for faded color films with whitelight optical processing is presented. The color restoration can be accomplished with spatial encoding and color filtering. Although the technique offers an advantage of faded color encoding, however, it is not a real-time technique. We have also presented a real-time color restoration with white-light optical processing technique. Experimental demonstrations of this color restoration technique are also included. We have shown that the white-light color restoration is a simple, versatile and economical technique. The white-light processing technique also offers the advantage of direct viewing capability, which is very suitable for instantaneous color restoration and enhancement applications.
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