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Advances in Continuous and Discrete Models

Theory and Modern Applications

Table 2 Comparison of the proposed multigrid method (4.3) with SI (4.1), AOS (4.2) in terms of iterations and CPU time for an image with different sizes

From: On segmentation model for vector valued images and fast iterative solvers

 

Image Size

SI Method

AOS Method

MG Method

 

Itr

CPU

Itr

CPU

Cycle

CPU

Real Image Fig. 4(c)

128 × 128

138

51.28

115

15.13

2

6.38

256 × 256

150

408.42

125

39.02

2

13.18

512 × 512

168

4016.75

135

160.18

2

24.04

1024 × 1024

194

26,767.43

195

938.00

2

69.23

2048 × 2048

–

–

500

9948.70

2

261.11

4096 × 4096

–

–

–

–

2

1086.83

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