Synthesis and 3D display of multi-wavelengths digital holograms through adaptive transformation

We propose a reconstructing method of digital color holograms based on the stretching techniques. With a simple affine transformation on the Fresnel reconstructions, we are able to manage the focus of the digital color reconstructions of the same object in order to obtain a synthetic single digital hologram in which three different colors are multiplexed. In addition, a 3D scene is synthesized combining multiple optically recorded digital color holograms of different objects. Numerical analysis and display tests are used to evaluate the effectiveness of the proposed method.