Table 7 Comparison of color images with the existing methods
From: A novel secured Euclidean space points algorithm for blind spatial image watermarking
Parameters | Huynh-The et al. [11] | Jobin Abraham and Varghese Paul [13] | Liu [16] | Sinhal [22] | Yaun [34] | Proposed method |
|---|---|---|---|---|---|---|
Size of host image/type | 512 × 512 | 512 × 512 | 512 × 512 | 512 × 512 | 512 × 512 | 512 × 512 |
Size of watermark | 64 × 64 | 64 × 64 | Image features | 2 × 4 blocks | 32 × 32x3 | 3 × 64 × 64 (Three Logos) |
Domain of operation | Transform domain | Spatial domain | Spatial domain | Spatial domain | Spatial and Frequency domain | Spatial domain |
Embedding color frame | Red, green, and blue | Blue | Red, green, and blue | RGB to gray conversion | Red, green, and blue | Red, green, and blue |
PSNR (dB) | 43.51 | 47.6 | 39 | 49.62 | 44.4928 | 69.1941 |
Image subjective quality | Good | Superior | Good | Good | Good | Excellent |
Adjustment of color variations | No | Yes | No | No | No | No |