402 search results - page 4 / 81 » Document Image Enhancement Using Directional Wavelet |
75
Voted
ACCV
1998
Springer
15 years 2 months ago
1998
Springer
Abstract. We introduce a continuous scale wavelet detector. Our algorithm was able to detect a mass that could not be seen using conventional windowing and leveling or traditional ...
ISCAS
2007
IEEE
15 years 4 months ago
2007
IEEE
— In this paper, a modified version of the complex directional pyramid (PDTDFB) is proposed. Unlike the previous approach, the new FB provides an approximately tight-frame decom...
110
Voted
ISCAS
2006
IEEE
15 years 4 months ago
2006
IEEE
— In this paper, the shift-invariant complex directional filter bank (CDFB) is proposed for texture image retrieval. By combining the Laplacian pyramid and the CDFB, a new image...
82
Voted
IJACTAICIT
2010
14 years 7 months ago
2010
This paper presents an improved adaptive algorithm for enhanced data hiding under HH-subband Haar Wavelet coefficients of a gray scale host image. The algorithm uses an optimal se...
103
Voted
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
A robust data hiding scheme that embeds the watermark bits by quantizing the gradient directions of an image is proposed. By embedding the watermark in the angle, the watermark be...