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- research-articleApril 2015
Inverse color to black-and-white halftone conversion via dictionary learning and color mapping
Information Sciences: an International Journal (ISCI), Volume 299, Issue CPages 1–19https://doi.org/10.1016/j.ins.2014.12.002This paper challenges the problem of estimating the original red-green-blue (RGB) image from a black-and-white (B&W) halftone image with homogeneously distributed dot patterns. To achieve this goal, training RGB images are converted into color-embedded ...
- articleNovember 2010
Accurate reversible color-to-gray mapping algorithm without distortion conditions
Pattern Recognition Letters (PTRL), Volume 31, Issue 15Pages 2405–2414https://doi.org/10.1016/j.patrec.2010.07.014This paper proposes an accurate reversible algorithm without any distortion conditions such as a print-san process for converting full color images to gray images while preserving the chroma and spatial resolution of the images. In our previous study, ...
- articleMarch 2010
Reversible color-to-gray mapping using subband domain texturization
Pattern Recognition Letters (PTRL), Volume 31, Issue 4Pages 269–276https://doi.org/10.1016/j.patrec.2008.11.010The concept of reversible conversion of color images to gray ones has been recently introduced. Colors are mapped to textures and from the textures the receiver can recover the colors. This was done using the wavelet transform and replacing high-...
- research-articleJune 2006
Color to gray and back: color embedding into textured gray images
IEEE Transactions on Image Processing (TIP), Volume 15, Issue 6Pages 1464–1470https://doi.org/10.1109/TIP.2006.871181We 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 ...