Research Article
Cat Swarm Optimization Based Functional Link Artificial Neural Network Filter for Gaussian Noise Removal from Computed Tomography Images
Table 1
Result for filters in terms of PSNR value in dB.
| Images | Noisy | Mean filter | Wiener filter | FLANN-LMS | CSO-FLANN |
| Image 1 | 41.77 | 44.37 | 44.98 | 45.40 | 45.91 | Image 2 | 41.73 | 44.49 | 45.15 | 45.60 | 46.07 | Image 3 | 41.75 | 44.35 | 44.20 | 44.99 | 46.28 | Average computational time (sec.) | | 1.78 s | 1.86 s (testing) | 321.48 s (training + testing) | 7573.621 s (training + testing) |
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