Optical logarithmic transformation of speckle images with bacteriorhodopsin films.
نویسنده
چکیده
The application of logarithmic transformations to speckle images is sometimes desirable in converting the speckle noise distribution into an additive, constant-variance noise distribution. The optical transmission properties of some bacteriorhodopsin films are well suited to implement such a transformation optically in a parallel fashion. I present experimental results of the optical conversion of a speckle image into a transformed image with signalindependent noise statistics, using the real-time photochromic properties of bacteriorhodopsin. The original and transformed noise statistics are confirmed by histogram analysis.
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ورودعنوان ژورنال:
- Optics letters
دوره 20 2 شماره
صفحات -
تاریخ انتشار 1995