Color correction for chromatic distortion in a multi-wavelength digital holographicsystem

Abstract

A multi-wavelength digital holographic (MWDH) system has been developed to record andreconstruct color images. In comparison to working with digital cameras, however,high-quality color reproduction is difficult to achieve, because of the imperfections fromthe light sources, optical components, optical recording devices and recordingprocesses. Thus, we face the problem of correcting the colors altered during the digitalholographic process. We therefore propose a color correction scheme to correct thechromatic distortion caused by the MWDH system. The scheme consists of twosteps: (1) creating a color correction profile and (2) applying it to the correctionof the distorted colors. To create the color correction profile, we generate twoalgorithms: the sequential algorithm and the integrated algorithm. The ColorCheckeris used to generate the distorted colors and their desired corrected colors. Therelationship between these two color patches is fixed into a specific mathematical model,the parameters of which are estimated, creating the profile. Next, the profileis used to correct the color distortion of images, capturing and preserving theoriginal vibrancy of the reproduced colors for different reconstructed images.