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Table 2 Maximum, mean, and minimum execution times (ms) on various types of images

From: A novel bit-quad-based Euler number computing algorithm

Image

Type

GRAY

RUN

HCS

I-GRAY

Ours

Natural

 Max.

1.86

1.69

1.97

1.34

1.02

 Mean

1.42

1.07

1.40

0.86

0.71

 Min.

1.10

0.61

0.87

0.55

0.49

Medical

 Max.

1.47

1.07

1.50

0.89

0.73

 Mean

1.29

0.92

1.25

0.72

0.62

 Min.

1.17

0.75

0.91

0.63

0.54

Textural

 Max.

1.73

1.66

1.60

1.16

0.92

 Mean

1.38

1.35

1.10

0.83

0.68

 Min.

1.00

1.04

0.51

0.49

0.51

Artificial

 Max.

1.11

1.03

1.35

0.56

0.49

 Mean

0.70

0.67

0.70

0.35

0.28

 Min.

0.28

0.24

0.32

0.16

0.11