Table 3 Image restoration quality analysis.
From: High-quality restoration image encryption using DCT frequency-domain compression coding and chaos
Pictures | Size | Compression ratio (%) | UACI (%) | MSE | PSNR (dB) | SSIM |
|---|---|---|---|---|---|---|
5.1.14.tiff45 | \(256\times {}256\) | 22.2656 | 0.0331 | 0.0844 | 58.8668 | 0.9997 |
7.1.10.tiff45 | \(512\times {}512\) | 31.4453 | 0.0328 | 0.0837 | 58.9038 | 0.9995 |
5.3.10.tiff45 | \(1024\times {}1024\) | 30.2734 | 0.0323 | 0.0836 | 58.9064 | 0.9995 |
river.tiff46 | \(3840\times {}2160\) | 33.6574 | 0.0177 | 0.0452 | 61.5837 | 0.9998 |
