Back to articles
Volume: 13 | Article ID: art00023
Color to Gray and Back: Color Embedding Into Textured Gray Images
  DOI :  10.2352/CIC.2005.13.1.art00023  Published OnlineJanuary 2005

We have developed a reversible method to convert color graphics and pictures to gray images. The method is based on mapping colors to low-visibility high-frequency textures that are applied onto the gray image. After receiving a monochrome textured image, the decoder can identify the textures and recover the color information. More specifically, the image is textured by carrying a sub-band (wavelet) transform and replacing band-pass sub-bands by the chrominance signals. The low-pass sub-band is the same as that of the luminance signal. The decoder performs a wavelet transform on the received gray image and recovers the chrominance channels. Registration problems are discussed and examples are presented.

Subject Areas :
Views 12
Downloads 0
 articleview.views 12
 articleview.downloads 0
  Cite this article 

Karen M. Braun, Ricardo L. de Queiroz, "Color to Gray and Back: Color Embedding Into Textured Gray Imagesin Proc. IS&T 13th Color and Imaging Conf.,  2005,  pp 120 - 124,

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 2005
Color and Imaging Conference
color imaging conf
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA