Improving an application of the fractional fourier transform in the digital image watermarking 5 .改进了一种分数阶fourier变换域数字图像水印算法,并仿真实现。
The design and implementation of transform - domain filter algorithm based on fft / ifft transform is discussed 阐述了基于fft / ifft变换的变换域滤波技术在fpga上的设计与实现。
Two image watermarking methods embed watermarks into transform domain using the multi - scale characteristic of wavelet 两种图像方法都是利用小波多尺度的特征在变换域嵌入水印。
The technique of dct - based digital watermarking for copyright protection of static image is studied in this paper 文中研究了基于静态图像的离散余弦变换域的数字水印版权保护技术。
The frequency domain algorithms are adopted for demodulating sensors connected in parallel . the capability of this multiplexing method is analyzed 然后,在光强函数的傅立叶变换域,讨论了传感器的复用问题。