Color-to-gray conversion using ISOMAP

Ming Cui*, Jiuxiang Hu, Anshuman Razdan, Peter Wonka

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


In this paper we present a new algorithm to transform an RGB color image to a grayscale image. We propose using nonlinear dimension reduction techniques to map higher dimensional color vectors to lower dimensional ones. This approach generalizes the gradient domain manipulation for high dimensional images. Our experiments show that the proposed algorithm generates competitive results and reaches a good compromise between quality and speed.

Original languageEnglish (US)
Pages (from-to)1349-1360
Number of pages12
JournalVisual Computer
Issue number11
StatePublished - Nov 1 2010


  • Color space
  • Color to gray

ASJC Scopus subject areas

  • Software
  • Education
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design


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