Color correction for chromatic distortion in a multi-wavelength digital holographic system

Li Chien Lin, Han Yen Tu, Xin Ji Lai, Yi Lun Huang, Chau Jern Cheng

Research output: Contribution to journalArticle

Abstract

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

Original languageEnglish
Article number055401
JournalJournal of Optics
Volume13
Issue number5
DOIs
Publication statusPublished - 2011 May 1

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Keywords

  • ColorChecker
  • color correction
  • digital holography
  • image reconstruction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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