搜索资源列表
dct
- dct变换,用c语言编写，实现了DCT的变换以及zig-zag扫描。-dct transforma
DCT
- 实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见，经DCT低通滤波后，图像变得很模糊。因为DCT是FFT取其实部，能量减少，因此图像变得很模糊，没有经FFT滤波后的效果好。 经DCT高通滤波后的图像： 经DCT高通滤波后，图像的低频部分被滤除掉，图像变黑，只有边缘的痕迹可见。-The DCT of image high-pass, low pass filter and compared with the Four
work
- matlab中的循环卷积，DFT,DCT，它在数字信号处理方面有很大地作用-circular convolution in matlab, digital signal processing, it has greatly effect
watermark-in-the-image-with-dct
- 基于DCT域的图像水印算法的实现，DCT变换；图像处理；信息隐藏；数字水印-watermark in the image with dct transfor
dct
- 基于FPGA的图像压缩算法程序，自己写的，可以参考一下-FPGA-based image compression algorithm, write your own, you can refer to
compressed-sensing-procedure
- 基于压缩感知的图像处理，分别使用二维DCT、FFT和一维dwt变换对图像信号进行稀疏变换，然后使用正交匹配追踪算法进行重构，在进行相应的逆变换-This is a image processing procedure based on compressed sensing which respectively uses two-dimensional DCT, FFT and one-dimensional dwt transform
dct_watermark
- 一个用 MATLAB 编写的数字水印算法实例 基于DCT算法的数字水印的嵌入算法与提取-MATLAB prepared a digital watermarking algorithm based on DCT algorithm instance digital watermark embedding and extraction algorithms
steganography
- steganography function to using DCT algorithms
123JEPG-example
- 图像压缩的matlab算法之JPEG，DCT算法。-matlab jpeg dct
DCT
- 多媒体编码，DCT离散余弦变换，CSharp版，Zig-Zag扫描。-This is multimedia encode program--DCT sosine change,programed by CSharp.
DCT
- 生成一个高斯水印后，对待嵌入水印的载体图像进行二维的DCT变换，然后嵌入水印-DCT transition.
DCT-JPEG-HUFFMAN-WAVELET
- 含有DCT JPEG HUFFMAN WAVELET图像压缩解压缩matlab的代码示例-With DCT JPEG HUFFMAN WAVELET image compression and decompression matlab code example
DCT
- 对图像进行DCT变换及变换后计算psnr的值-The image transformation and DCT computation of PSNR value after transformation
DCT
- 基于DCT的数字水印处理技术，本水印处理过程利用图像的缩放技术和调整原始图像的直方图，根据人眼视觉特性,在每个DCT变换块的DC分量上嵌入水印信息，并且在水印信息嵌入之前,对其进行置乱加密,提供双重安全保证，接着通过JPEG压缩攻击对DCT域的鲁棒性进行测试，证明了DCT的抗攻击能力。-DCT-based digital watermarking technique, the watermark processing technolog
DCT
- 数字信号处理实验，DCT图像压缩，内含有matlab实验m文件以及实验报告，供大家参考。-Digital signal processing experiment, DCT image compression, contains matlab experiment m documents and the experiment report for your reference.
dct-precoded-SLM-method-for-PAPR-reduction
- dct precoded SLM method for PAPR reduction High Peak to Average Power Ratio (PAPR) is still a most important challenge in Orthogonal Frequency Division Multiplexing (OFDM) system. In this paper, we propose a Dis
dct
- DCT is one of the novel normalization techniques for illumination variation. The technique is in- corporated by truncated the low frequency DCT Coecients. In face image illumination, changes slowly compared to re
dct
- dct,dft,dht三种图像压缩变换之间的比较-DCT, dft, the dht three kinds of image compression transformation
DCT
- 将一幅图像先进行分成8X8块，然后对每个8X8块进行DCT变化，最后将变换后的图片进行分层，重新显示-Will an image to 8 X8 into pieces, then to every 8 X8 block DCT change, finally will transform the images after the layered, displayed again
DCT-domain-image-water
- 通过matlab实现DCT域图像水印技术，内容详细，通俗易懂，可供大家使用，互相学习。-Through matlab DCT domain image watermarking technology, detailed, easy to understand, and available for everyone to use, learn from each other.