Watermark embedding in optimal color direction

Lyons, Robert; Reed, Alastair; Stach, John

doi:10.1117/12.2009879

Cited by 1 publication

(1 citation statement)

References 3 publications

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“…This does not come as surprise; it is commonly known that the contrast sensitivity of the HVS is higher for the luminance channel than for the red-green or blue-yellow opponent-color channels. [28][29][30][31] In this work, we use the YC b C r opponent-color space as error minimization space for the CDBS algorithm. Using this color space resulted in finest halftone textures when compared to the CIELAB and Y y C x C z opponent-color spaces.…”

Section: Data Embedding Using Orientation Modulationmentioning

confidence: 99%

Orientation Modulation for Data Hiding in Chrominance Channels of Direct Binary Search Halftone Prints

Kitanovski¹,

Pedersen²

2016

cic

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Abstract. In this article, we propose a joint halftoning and data hiding technique for color images. To ensure high quality of the printed image, the color direct binary search (CDBS) iterative halftoning algorithm is used. The proposed approach uses the commonly available cyan, magenta and yellow colorants to hide data in the chrominance channels. Orientation modulation is used for data embedding during the iterative CDBS halftoning stage. The detector is using PCA-learned components to extract the embedded data from the scanned image. Experimental results show that this proposed CDBS-based data hiding method offers both higher data hiding capacity and higher robustness to the print-and-scan channel when compared to the state-of-the-art grayscale counterpart method. The relatively high correct detection rate make this approach suitable for applications which require exact extraction of embedded data in prints.

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Section: Data Embedding Using Orientation Modulationmentioning

confidence: 99%