Image Histograms
Embedding rate 8.9%
Embedding rate 100%
The effect of different embedding rates on PSNR
Embedding rate = Length of text/Total number of values available * 100
| Percent | Calculating the rate | PSNR |
|---|---|---|
| 0.8% | 441/49152 * 100 | 71.9287 |
| 8.9% | 4410/49152 * 100 | 61.7117 |
| 89% | 44100/49152 * 100 | 51.6374 |
| 100% | 49152/49152 * 100 | 51.1471 |
Comparing different methods - LSB vs LSB matching vs Matrix embedding
| Method | Embed % | SSIM | PSNR |
|---|---|---|---|
| LSB | 8.9% | 1.0000 | 61.7117 |
| LSB Matching | 8.9% | 1.0000 | 61.7117 |
| Matrix Embedding | 8.9% | 1.0000 | 62.7213 |
| LSB | 100% | 0.9997 | 51.1471 |
| LSB Matching | 100% | 0.9997 | 51.1471 |
| Matrix Embedding | 100% | 0.9999 | 57.1090 |
SPA
For SPA with a threshold 0.025
RESULTS
LSB 0.6582>0.025 -> Detected
LSB matching -0.1440<0.025 -> Not detected
© Shreenithi S and Hrishikesh Nair. Last modified: June 25, 2021. Website built with Franklin.jl and the Julia programming language.