Frequency tuned salient edge detection
Yusuf Saber, Matthew J. Kyan · 2011
This paper presents a novel method for salient edge detection based on the frequency tuning principle. Limiting the operation to a single wavelet sub-band, the frequency components of the wavelet are analyzed. The average value in each frequency component (horizontal, vertical, and diagonal) is computed and subtracted from each pixel in its respective component. This creates a variance which allows the salient edges to pop out more significantly. Reconstructing the wavelet using only the frequency components yields a strong response to salient edges. Comparisons are given to classic salient edge detection methods.