812 search results - page 3 / 163 » Edge detection using wavelets |
PRL
2002
13 years 8 months ago
2002
This paper proposes a wavelet based edge detection scheme by scale multiplication. The dyadic wavelet transforms at two adjacent scales are multiplied as a product function to mag...
ICIP
2000
IEEE
14 years 28 days ago
2000
IEEE
In this paper, we propose using Partial Differential Equation (PDE) techniques in wavelet based image processing to reduce edge artifacts generated by wavelet thresholding. We emp...
TCSV
2002
13 years 8 months ago
2002
In this paper, an efficient and computationally fast method for segmenting text and graphics part of document images based on textural cues is presented. We assume that the graphic...
ICIP
2006
IEEE
14 years 10 months ago
2006
IEEE
We investigate reducing the dimensionality of image sets by using principal component analysis on wavelet coefficients to maximize edge energy in the reduced dimension images. Lar...
DCC
2002
IEEE
14 years 8 months ago
2002
IEEE
Wavelet-based image coders optimally represent smooth regions and isolated point singularities. However, wavelet coders are less adept at representing perceptually important edge ...