搜索资源列表
watermark-JPEG-and-DCT
- 自己总结的关于JPEG压缩的过程以及DCT变换的步骤-The main story about those files is the process of JPEG compression and DCT transform
dct
- 读取图像，然后对图像进行dct变换，并保存-Dct transform the image and save
DCT
- 数字水印的DCT变换，可以看看，相当不错的，老师推荐的！-The DCT digital watermarking can look pretty good, the teacher recommended!
DCT
- 随着科学技术的发展,图像压缩技术越来越引起人们的关注。为此从众多的图像压缩编码标准中选取了基于DCT变换的JPEG图像压缩编码算法进行研究，并通过对比分析各种软件特性选取了MATLAB进行实验仿-With the development of science and technology, image compression technology is increasingly a cause for concern. To do this, select from a large number
DCT-transform
- 读取彩色图像，灰度化后，进行DCT变换，然后进行DCT重构-After reading a color image, gray, DCT transform, and then reconstructed DCT
DCT
- DCT变换不同实现量化表量化，去除较小的变换系数，反变换后显示图像压缩效果！-Different implementations of the DCT quantization quantization table, removing a small transform coefficients, the display image compression inverse transform!
DCT
- 用DCT变换进行图像压缩，求经压缩、解压后的图像-With the DCT transform for image compression
DCT
- 利用元胞数组对图像的每个8x8块进行DCT变换后，重整图像，在左上角显示图像概貌-After the use of cellular arrays for each 8x8 block DCT transform image, reforming the image is displayed in the upper left corner of the image overview
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,