Author： Braun Karen M. de Queiroz Ricardo L.
Publisher： Society for Imaging Science and Technology
ISSN： 2166-9635
Source： Color and Imaging Conference, Vol.2005, Iss.1, 2005-01, pp. : 120-124
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
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.
Related content
Access to resources
Recommend
By Inui Masao Noda Shin-ichiroh Yamazoe Takashi Azuma Yoshihiko
Conference on Colour in Graphics, Imaging, and Vision, Vol. 2002, Iss. 1, 2002-01 ,pp. :
By Khoudeir Majdi Benslimane Anis Olivier Christian
Conference on Colour in Graphics, Imaging, and Vision, Vol. 2002, Iss. 1, 2002-01 ,pp. :