1 Introduction
2 Image enhancement based on NSST
2.1 Enhancement function and its properties
2.2 Selection of the thresholds
2.3 The overall framework of the algorithm
3 Experiment results and discussion
Lena | CII | EPI | Running time(ms) |
---|---|---|---|
Wavelet | 1.0295 | 1.0771 | 3.201676 |
NSCT | 1.0639 | 2.0942 | 85.199992 |
NSST | 1.0734 | 2.3440 | 5.709889 |
Barbara | CII | EPI | Running time(ms) |
---|---|---|---|
Wavelet | 1.0189 | 1.0172 | 3.190038 |
NSCT | 1.1463 | 1.8084 | 86.739811 |
NSST | 1.1961 | 2.0732 | 5.205702 |
Infrared image | CII | EPI | Running time(ms) |
---|---|---|---|
Wavelet | 1.1026 | 1.0318 | 3.903247 |
NSCT | 1.2514 | 2.1303 | 86.213432 |
NSST | 1.2542 | 2.5644 | 8.812085 |
Noisy image | CII | EPI | ENL |
---|---|---|---|
Wavelet | 1.0239 | 0.9223 | 6.9334 |
NSCT | 1.0149 | 2.3633 | 6.9136 |
NSST | 1.0576 | 4.6326 | 6.5254 |