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DCT-watermarked-kangdayinsaomiao
- 针对打印扫描对图像影响的特点, 选取在图像的DCT 域上嵌入水印信息。对DCT 变换后的系数按 照他们的位置进行了特殊的分类, 通过分类后每一类中正负号的数量来表达水印信息, 增强了算法的鲁棒性。 然后对水印的嵌入位置、鲁棒性和嵌入强度进行了研究-Impact on the image for print scanning feature, select the image on a DCT domain watermark embedding. The DCT transform co
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
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
- 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
- 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 technology and the use of image scaling
JPEG-DCT
- 将lena.bmp图像进行JPEG压缩,使用dct变换和量化编码。-Will lena.bmp images to JPEG compression using dct transform and quantization coding.
Image-compression-based-on-DCT-
- 基于DCT变换的图像压缩matlab实现,检测可用,值得参考。-Image compression based on DCT matlab implementation, testing available, worthy of reference.
DCT
- 图像压缩。对图像进行DCT变换。 取灰度图,DCT,IDCT。-Discrete Cosine Transform of an image
DCT-watermark--
- DCT变换的水印嵌入和提取 根据相似性的值就可以判断图像中是否含有水印-DCT watermark embedding and extraction according to the similarity value can determine whether it contains a watermark image
DCT---
- DCT变换的水印嵌入和提取 根据相似性的值就可以判断图像中是否含有水印-DCT watermark embedding and extraction according to the similarity value can determine whether it contains a watermark image
DCT
- DCT变换系数的求解及丢掉一部分高频信息后的重建图像-Solving and lost part of the high-frequency information of the reconstructed image of the DCT coefficients
Arnold-DCT
- 在一张图片里嵌入一些信息 通过DCT变换之后可以再从图片中把这些信息提取出来-Embedded in a picture by DCT transform can picture these extracted
DCT-transformation
- 利用mfc实现DCT变换,程序简单可读性强,适合初学者使用-Mfc DCT transform, readable simple procedures, suitable for beginners to use
DCT
- 利用DCT变换实现两幅大小相同的图像的水印嵌入,包含水印图像的处理,水印的嵌入和提取。及PNSR的计算-DCT transform two of the same size image of the watermark embedding, contain watermark image processing, the watermark embedding and extraction. And PNSR calculation
DCT
- 实现DCT变换,包括FFT快速变换,DCT逆变换的算法代码-DCT, FFT Fast Transform, DCT inverse transformation algorithm code
DCT
- 用VC++实现图像DCT变换及IDCT,界面友好便于实现-complish DCT by VC++
DFT-and-DCT-transformations
- 二维离散傅里叶变换和离散余弦变换同属于图像的二维正交变换,它们在图像处理中有 着极为重要的应用价值。利用这些正交变换可以获得图像的频域信息,从而实现图像的增强、复原、编码和描述。本文将描述对图像进行DFT 和DCT 变换的过程。在进行DFT 变换后,还会将图像的幅频、相频特性进行置换操作后反变换,并探讨其中的规律;而在DCT 变换后,还将探讨如何选取DCT 系数点以实现图像的复原。请先阅读压缩包内的pdf文档。-This code implements the DFT and DCT tra
DCT
- 数字视频图像处理大作业。MPEG-1、MPEG-2及JPEG标准中都采用了基于图像块的DCT变换编码,根据已学知识完成下列问题:-Digital video image processing operations.Mpeg-1, mpeg-2, and JPEG standard are adopted based on image block DCT transform coding, according to the knowledge to complete the following q
watermark-dct
- 一种基于DCT变换的水印嵌入和提取的程序。-Based on the DCT watermark embedding and extraction procedures.