Information preserving color transformation for protanopia and deuteranopia

Jia Bin Huang*, Yu Cheng Tseng, Se In Wu, Sheng-Jyh Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

72 Scopus citations


In this letter, we proposed a new recoloring method for people with protanopic and deuteranopic color deficiencies. We present a color transformation that aims to preserve the color information in the original images while maintaining the recolored images as natural as possible. Two error functions are introduced and combined together to form an objective function using the Lagrange multiplier with a user-specified parameter λ. This objective function is then minimized to obtain the optimal settings. Experimental results show that the proposed method can yield more comprehensible images for color-deficient viewers while maintaining the naturalness of the recolored images for standard viewers.

Original languageEnglish
Pages (from-to)711-714
Number of pages4
JournalIEEE Signal Processing Letters
Issue number10
StatePublished - 1 Oct 2007


  • Color deficiency
  • Image processing
  • Lagrange multiplier
  • Recoloring

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