Ringing Effect In Holographic Image Processing

The most popular application of holography is using the technique to make three-dimensional images [1]. This paper describes the basic of computationally generating holograms along with integral effect of image processing on hologram. The phrase, “digital holography", is common place in the optics community; it describes the methods used to reconstruct holographic images from physically recorded holograms as well as the methods used to construct holograms from virtual objects using a computer. In fact we have the ability to create digital holograms from imaginary objects and then recreate the image of those objects using the same digital holograms, the entire process performed on a single computer. Computer generated holograms being an image processing technique is prone to certain effects of typical image processing caused due to filtering effects [2]. The effect of image processing on the computer simulation technique for generating Fourier holograms using the Fraunhoffer diffraction theory is discussed. A detailed analysis was done on the computation and numerical reconstruction. Corresponding reconstructions were verified by MATLAB for computer simulation. Understanding this technique, further image enhancement technique can be applied on holographic image.