Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Edge detection scheme comparison on the vesicle image. Comparison of different edge detection schemes applied to the vesicle image. a) raw output from out curvelet-based scheme; b) Canny edge detector with thresholds 0.12 and 0.35; c) odd Gabor filter with σ = 2 and ω = 0.5.; d) odd Gabor filter with σ = 6 and ω = 0.33.
