搜索资源列表
sy1_4
- 读取图像lena.tif，进行DCT变换，每个图像块保留10个DCT系数进行重构图像，比较重建图像与原始图像的差异。-Read the image lena.tif, the DCT transform, each image block of 10 DCT coefficients to retain the reconstructed image, reconstructed image compared with the original image differences.
dtc
- DCT图像置乱程度评价方法 DCT image scrambling degree evaluation method-DCT image scrambling degree evaluation method
DCT
- DCT-离散cos变换。数字图像处理相关知识。-DCT-Discrete cos transformation. Knowledge of digital image processing.
exa080903_LOT_1D
- 利用子程序fast-lot.m,实现对该图像的变化及压缩，并和以为信号做dct后的图像质量相比较。-Using subroutine fast-lot.m, to achieve the changes and compression of the image, and after, and that the signals do dct compare the image quality.
DFT-DCT
- 基于VC++的图像的DFT变换和DCT变换，并可实现两者间的对比转换-VC++ based on the image of the DFT transform and DCT transform, and to achieve the contrast between the two conversion
2
- matlab开发数字水印DCT与DWT（基于小波变换的静态图像数字水印方法研究）-development of digital watermarking matlab DCT and DWT (wavelet-based method for watermarking of still images)
DCT
- JPEG标准中规定了4种压缩模式[15]：顺序编码（Sequential encoding），渐进编码（Progressive encoding），等级编码（Hierarchical encoding），无损编码（Lossless encoding）。应用最为广泛的为基于DCT变换的顺序编码，也称之为基准模式(Baseline mode)，其它几种模式都以此为基础。这里，采用了JPEG基准模式对图像进行压缩，在基准模式中，熵编码采用哈夫曼编码方法。 -JPEG standard specif
DCT
- 用MFC对一个视频或者图像进行DCT变换-With MFC or image on a DCT-video
imagecompression
- 有损图像压缩的matlab程序实现，通过dct变换，霍夫曼编码，译码，比较压缩后图像与原图。-lossy image compression
dct
- 在VC平台实现一帧图像整数 dct变化。-The dct change of a picture
dct
- 在一个256*256像素的图像中嵌入水印，并经过高斯白噪声，最后在解调出原始图像与水印图像-In a 256* 256 pixel image embedded watermark, and after a Gaussian white noise, and finally demodulate the original image and watermark image
FDCT
- VC++图像DCT快速变换演示源码，一共演示了普通DCT、快速DCT、快速IDCT算法的实现，效果还不错-VC++ image DCT fast algorithm demo source code, demonstrates a total ordinary DCT, fast DCT, fast IDCT algorithm, results were pretty good
lean
- 基于MATLAB的图像压缩，DCT变换，huffman编码-Image compression
DCT-for-image-compression-
- 利用DCT进行图像压缩（首先将图像分割成8×8的图像，对每个子图像进行DCT，这样每个子图像有64个系数，舍去50％小的变换系数，进行2：1的压缩。）-Using DCT for image compression (first image into 8 × 8 image, for each sub-image DCT, so that each sub-image by a factor of 64, rounding 50 of the small transform coefficie
a-dct-watermark
- 基于离散余弦变换的数字水印，在图像的dct变换域中相应嵌入数字水印-Discrete cosine transform-based digital watermarking, the image of the dct transform domain watermark embedding corresponding
image-dct
- 使用c语言完成对bmp图像的读取以及实现dct变换-Completed using the c language to read bmp images and the realization of dct transform
DCT-transform
- 使用c++对bmp格式的图像进行读取 和dct变 编码 压缩-Bmp with c++ on the image format to read and change coding dct
Binary-text-digital-image
- 提出了一种可抗 几何攻击的二值文本图像水印算法. 该算法基于DCT,它将二值图像的DCT、图像的视觉特征向 量和加密技术有机结合起来,在提取水印时不需要原始图像,是一种实用的盲水印算法-We propose a geometric attacks against Binary Text Watermarking Algorithm. The algorithm is based on DCT, it binary image DCT, the image of the visual fe
DCT
- dct实现图像压缩，可运行的，matlab实现-failed to translate
a-watermarking-based-on-dct
- 这个基于dct的数字水印的嵌入和提取算法实现。对原始图像进行4*4的分块，并将生成的水印信息嵌入的4*4的低频中。提取是嵌入的逆运算。算法效果挺好的。-