Numerical study of color holographic projection using space-division method.

We propose a color holographic projection using the space-division method, which can reconstruct a two-dimensional color image by one hologram and avoid the superimposing of unwanted images on a wanted image. We calculated three holograms corresponding to red, green and blue, and then generated one hologram to add the three holograms. The three holograms were optimized by the Gerchberg-Saxton algorithm for improvement of reconstructed color images. We numerically evaluated the image quality of color reconstructed images in terms of the color space of YCbCr, and compared the quality of color reconstructed images by the space-division method with that of reconstructed color images using another color holographic projection method.