36 search results - page 2 / 8 » Halftone visual cryptography |
TOG
2008
13 years 9 months ago
2008
This paper presents an optimization-based halftoning technique that preserves the structure and tone similarities between the original and the halftone images. By optimizing an ob...
ICIP
2000
IEEE
14 years 11 months ago
2000
IEEE
In this paper, we demonstrate based on the linear model of [1, 2] that inverse halftoning is equivalent to the well-studied problem of deconvolution in the presence of colored noi...
JEI
2002
13 years 9 months ago
2002
Abstract. We propose a metric to predict the visibility of color halftone textures. This metric is represented by the critical viewing distance below which the halftone textures ca...
VIROLOGY
2010
13 years 4 months ago
2010
ICIP
2010
IEEE
13 years 7 months ago
2010
IEEE
We present a method for embedding and detection of visual watermark patterns in printed images that use clustered-dot halftones in the printing process. The method allows two inde...