Next, it modified the standard JPEG quantizationtable for the purpose of accommodating more secret messages.
接着修改了JPEG标准量化表以便能够嵌入较多的信息;
2
Simulation results show that the quantizationtable estimation algorithm proposed is less time consuming and of higher precision.
实验结果表明,提出的估计量化表算法复杂度小,精度高。
3
By using the methods of table lookups, probability quantization and modified renormalization operations, a simple multiplication-free binary block arithmetic coding scheme is given.