CS5720 - Week 4
Slide 67 of 80

Common Filters: Edge Detection, Blur, Sharpen

🔍 Edge Detection Filters
Sobel Operator
Horizontal
-1
0
1
-2
0
2
-1
0
1
Prewitt Operator
-1
0
1
-1
0
1
-1
0
1
Laplacian
0
1
0
1
-4
1
0
1
0
🌫️ Blur Filters
Box Blur
1
1
1
1
1
1
1
1
1
÷ 9
Gaussian Blur
1
2
1
2
4
2
1
2
1
÷ 16
Motion Blur
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1
÷ 5
✨ Sharpen Filters
Basic Sharpen
0
-1
0
-1
5
-1
0
-1
0
Unsharp Mask
-1
-1
-1
-1
9
-1
-1
-1
-1
High Boost
A·Identity - Blur
(A > 1)

Try Different Filters

Original Image
Filtered Result
Current Filter Info
Select a filter to see its effect
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Prepared by Dr. Gorkem Kar