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Chapter 2 ■ Edge-Detection Techniques 55
Canny ISEF Canny ISEF
ET4
SNR = 2
SNR = 1
SNR = 6
SNR = 2
Chess
SNR = 1
σ= 3
ET5
σ= 9
SNR = 6
σ= 18
Figure 2.16: (Continued)
