搜索资源列表
DCT--and--FFT
- 实现DCT变换和FFT变换的图像压缩， 比较两者性能的差异-The DCT transform and FFT transform image compression
dct
- 对图片进行 离散余弦变换 DCT变换 对图片进行 离散余弦变换 DCT变换-DCT
DCT
- 基于DCT域的数字水印算法主要包括水印调制、水印嵌入和水印提取，首先在嵌入载体图像之前用Logistic混沌序列对水印进行调制，得到一个只有+1和-1随机序列的水印，同时将载体图像进行全局DCT变换，然后将水印图像嵌入人类视觉系统最重要的部分，即DCT最大的系数，DC（Direct Current）部分也包含在这最大的系数中，这部分的系数满足人类视觉特性，会使水印嵌入的性能更好。嵌入算法是将水印与这些系数进行相乘获得新的系数，再用新的系数来替换原来的系数，即获得嵌入水印后的离散余弦域的图像，然后
DCT
- dct变换的简单程序，用于例如jpeg图像压缩等的部分程序-DCT simple procedure to transform.For such as part of JPEG image compression program
gaussian-white-noise--DCT-Matlab
- 混沌加密、DCT变换、水印提取，可以直接使用，方便交流学习。-gaussian white noise DCT Matlab
DCT
- 用C#语言编写的通过DCT变换实现图像压缩 数字图像处理实验报告-Written in c# by DCT transformation to realize image compression
dct-f3
- 图像dct变换，量化，f3隐写，压缩，解压，使用matlab实现-Image DCT transform, quantization, F3 steganography, compression, decompression, using MATLAB to achieve
dct
- 图像处理很重要，那只保留我们想要的信息就比较重要，程序是传统图像编码中的dct变换编码处理-Image processing is very important, the only retain the information we want is more important, the program is a traditional image coding in DCT transform coding processing
dct
- 用matlab对图像进行DCT变换，过滤掉一些能量低的部分，再进行反变换恢复图像，并进行展示。-Using matlab for image DCT, filtering out some of the low energy part, then the inverse transform to restore the image and display.
DCT-compress
- 把图像分成8x8的图像块进行DCT变换压缩，再用霍夫曼编码，其中DCT变换未调用matlab 的函数，可以满足一些作业的要求-The image is divided into 8x8 image blocks of compressed DCT transform, then Huffman coding, which is not the DCT matlab function calls, meet some of the requirements of the job
DCT-transform-of-the-image
- 对cameraman.tif图像进行DCT变换，分别选取最大的1/4、1/8、1/16个变换系数(其余置为0)，进行反DCT得到重构图像，显示原图像和各重构图像并分别计算重构图像的峰值信噪比。-Cameraman.tif DCT transform of the image, were selected maximum 1/4,1/8,1/16 transform coefficients (the remainder is set to 0), inverse DCT to obtain th
DCT
- DCT变换的C语言实现， DCT变换的C语言实现-DCT-C language,DCT-C language,DCT-C language,DCT-C language,
FFT-DCT
- 这两个程序分别是对图像进行FFT变换和DCT变换。-zhe liang ge cheng xu shi dui tu pian jin xing FFT and DCT bian huan .
DCT
- DCT变换方法，并讨论了应用MATLAB中的图像处理工具箱中的相关函数和命令来实现离散余弦变换的图像压缩算法的仿真。-DCT transformation method, and discusses application MATLAB image processing toolbox related functions and commands to achieve discrete cosine transform image compression algorithm simulation
Based-on-digital-watermarking-of-DCT
- 基于DCT变换的数字水印技术，初步编程，适合初学者使用，简单易行-Based on digital watermarking of DCT, preliminary program, suitable for beginners to use, simple
DCT-based-digital-watermarking
- 采用DCT变换的数字水印，简单，能够运行，适合毕业设计使用-Use of DCT watermark, simple and able to run for graduation design use
DCT-dctrestructuring-code
- DCT变换后，各子带系数重组后的显示图（和小波变换的性能对照，体现了DCT 的多分辨率性能），已经测试了，可以使用-After the DCT transform coefficients of each sub-band after the restructuring is shown in Figure (wavelet transform performance and control, reflecting the multi-resolution performance of DCT)
dct--matlab
- dct变换 提高图像数据压缩 效果较好-Dct transform to improve the image data compression is better
Graph-Code-and-DCT
- 图像编码解码以及图像的DCT变换，附原图及结果，代码有相关说明。-Graph Code and DCT
DCT
- 该代码是对图像进行DCT变换，并显示变换后的图像和频谱-The code is DCT transforms the image and displays the transformed image and spectrum