Mathematical Problems in Engineering / 2013 / Article / Tab 4 / Research Article
Reversible Data Hiding Scheme with High Embedding Capacity Using Semi-Indicator-Free Strategy Table 4 Performance comparisons among Chang et al.’s [
10 ] scheme, Yang and Lin’s [
15 ] scheme, and the proposed scheme with various test images and codebook sizes.
Images Chang et al.’s [10 ] scheme Yang and Lin’s [15 ] scheme The proposed scheme Codebook sizes Codebook sizes/VQ BR 128 256 512 1024 256 512 128/0.438 256/0.500 512/0.563 1024/0.625
/
2/3 3/3 3/3 4/3 ER BR (in bpp)EC (in bits)Airplane 0.182 0.149 0.124 0.119 0.236 0.208 0.326 0.343 0.291 0.269 0.580 0.670 0.760 0.850 0.500 0.550 0.364 0.414 0.442 0.503 27684 26170 24608 26432 30894 29954 31077 37257 33747 35448 Lena 0.179 0.136 0.115 0.094 0.234 0.208 0.332 0.348 0.275 0.261 0.580 0.670 0.750 0.830 0.500 0.550 0.360 0.410 0.445 0.504 27164 23884 22626 20502 30736 29958 31308 37410 32067 34428 Peppers 0.187 0.150 0.116 0.104 0.244 0.216 0.338 0.359 0.287 0.264 0.580 0.670 0.740 0.830 0.490 0.540 0.359 0.407 0.440 0.501 28372 26284 22592 22676 31346 30576 31743 38286 33180 34677 Toys 0.195 0.160 0.136 0.119 0.254 0.234 0.397 0.373 0.332 0.302 0.590 0.680 0.770 0.860 0.480 0.510 0.348 0.405 0.426 0.487 30202 28606 27460 26760 31912 31226 36300 39594 37107 38529 Gold hill 0.142 0.109 0.084 0.074 0.203 0.158 0.306 0.321 0.248 0.232 0.590 0.680 0.750 0.830 0.540 0.640 0.364 0.415 0.454 0.514 21928 19420 16548 16116 28792 26502 29211 34866 29451 31287 Zelda 0.179 0.135 0.111 0.088 0.250 0.220 0.338 0.375 0.308 0.298 0.580 0.670 0.740 0.820 0.480 0.530 0.357 0.401 0.431 0.485 27258 23754 21506 18842 31444 30634 31704 39462 34809 37842