Image Detection
Basics of Image Segmentation
Local information given by pixel value
Features defined by difference from their surroundings
Simple Mask Example: Point Detector
Point Detection Mask:
-1
-1
1
-1
8
-1
-1
1
1
Smooth Color:
2
2
2
2
2
2
2
2
2
Mask Response:
-2
-2
-2
-2
16
-2
-2
-2
-2
Point Detection Mask:
-1
-1
1
-1
8
-1
-1
1
1
Center Point:
2
2
2
2
8
2
2
2
2
Mask Response:
-2
-2
-2
-2
64
-2
-2
-2
-2