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SIGGRAPH
1999
ACM
14 years 24 days ago
Multi-color and Artistic Dithering
A multi-color dithering algorithm is proposed, which converts a barycentric combination of color intensities into a multi-color nonoverlapping surface coverage. Multi-color dither...
Victor Ostromoukhov, Roger D. Hersch
ICIP
2004
IEEE
14 years 10 months ago
Robust perceptual image hashing via matrix invariants
In this paper we suggest viewing images (as well as attacks on them) as a sequence of linear operators and propose novel hashing algorithms employing transforms that are based on ...
Mehmet Kivanç Mihçak, Ramarathnam Ve...
ICCV
2003
IEEE
14 years 10 months ago
Adaptive Dynamic Range Imaging: Optical Control of Pixel Exposures Over Space and Time
This paper presents a new approach to imaging that significantly enhances the dynamic range of a camera. The key idea is to adapt the exposure of each pixel on the image detector,...
Shree K. Nayar, Vlad Branzoi
ICPR
2000
IEEE
14 years 27 days ago
Thyroid Cancer Cells Boundary Location by a Fuzzy Edge Detection Method
2. Obtain the gray-levelgradient magnitude. 3. Derive the threshold surface by deforming the original image gray-level surface. 4. The thresholdsurface interpolation. 5. Segmentati...
C. C. Leung, Francis H. Y. Chan, Paul C. K. Kwok, ...
GIS
2009
ACM
14 years 3 months ago
Tree detection from aerial imagery
We propose an automatic approach to tree detection from aerial imagery. First a pixel-level classifier is trained to assign a {tree, non-tree} label to each pixel in an aerial im...
Lin Yang, Xiaqing Wu, Emil Praun, Xiaoxu Ma