Edge Detection with Pandore

Identification

• Pantheon Project
• Author: Régis CLOUARD
• Date: Jun 18, 2011
• Required: Pandore >= 6.6.0
• Downloads
  • Test images: images.zip
  • Ariane workspaces + test images: ariane.zip

Introduction

1. DOG algorithm (Difference of Gaussian):

   pexponentialfiltering 0.2 tangram.pan a.pan
   pexponentialfiltering 0.8 tangram.pan b.pan
   psub a.pan b.pan c.pan
   pzerocross 8 0 c.pan out.pan

2. Thresholding by hysteresis

(seuilb seuilh tangram.pan out.pan)

pbinarization seuilh 1e30 tangram.pan i1.pan
pbinarization seuilb 1e30 tangram.pan i2.pan
pgeodesicdilatation 1 1 -1 i1.pan i2.pan out.pan