Next, it modified the standard JPEG quantization table 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;
Simulation results show that the quantization table 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。
By using the methods of table lookups, probability quantization and modified renormalization operations, a simple multiplication-free binary block arithmetic coding scheme is given.
通过使用查表、概率量化和修改的重正化操作的方法,给出了一个简单的无乘法的二值分组算术编码方案。
The distance of the uniform color space is used as the distortion measure, and the codebook of vector quantization is used to set the color table register, which shows good results.
以均匀颜色空间的距离作失真测度,以矢量量化的码书设置颜色寄存的颜色值。实验证明,效果令人满意。
The distance of the uniform color space is used as the distortion measure, and the codebook of vector quantization is used to set the color table register, which shows good results.
以均匀颜色空间的距离作失真测度,以矢量量化的码书设置颜色寄存的颜色值。实验证明,效果令人满意。
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