Edge Detection

1
Edge Detection

• Michael Feinberg

2
Early Work Edge Detection, B/W

• Simple Edge Detection
• Horizontal Edge Detection
• Vertical Edge Detection
• Complex Edge Detection
• Robert's Cross
• Sobel's

3
Horizontal Edge Detection
Vertical Edge Detection
4
Robert's Cross and Sobel's
5
RGB vs. B/W
needs three data sets
needs one data sets
6
Editing a Single Color within RGB
7
Editing Two Colors
8
Histograms

• Data from each picture, graphed using Gnuplot

9
The Future

• Using histograms to edit pictures for
• gamma correction
• refocus pictures
• remove scratches
• other ideas from Computer Vision by Shapiro
  Stockman