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dct_2
- 图象水印的一种基于dct的简单算法例子 期望能对刚开始涉及数字水印的朋友有一点帮助-a watermark image based on a simple algorithm Extra examples can expect to start digital watermarking friends a little help
DCTwatermark
- 基于dct的数字图像水印技术的matlab源代码。大家共享
image_patchwork_dct
- 根据W. Bender的《Techniques for data hiding》编写 ％用补丁方法对图象做DCT域的水印嵌入和提取， ％效率极高，程序简洁，属信息隐藏中常用的方法之一。 ％作者：辽宁大学 信息学院 范铁生 ％email:fts0@163.com
DCT--info-hiding.rar
- 函数用于DCT的信息隐藏,在变换域嵌入隐藏的信息,Function for the DCT information hidden in the transform domain embedded hidden information
dct2_recover
- 一种基于DCT变换的数字图象处理算法 (数字水印)的提取算法!-DCT transform based on digital image processing algorithms (digital watermark) extraction algorithm!
RRNOLD
- 一种利用ARNOLD变换和DCT变换的图象处理方法,附带图象可以马上实验!-A ARNOLD transform DCT transform and image processing method, the image can be immediately attached to the experiment!
ImageFreqCipher
- 一种频域加密算法，图像经过DCT变换得到DCT系数，然后对DCT系数进行加密。然后对加密的DCT系数进行DCT反变换图像数据。最后对其加密后的图像数据进行线性变换来调整图像数据的取值范围在[0，255]。最后得到加密图像-A frequency-domain encryption algorithm, the image obtained through the DCT transform DCT coefficients, and then encrypt the DCT coefficien
an_intellegent_audio_water_marking_based_on_dwt-s
- All three, Discrete Wavelet Transform (DWT) - Singular Value Decomposition (SVD) and Adaptive Tabu Search (ATS) have been used as mathematical tools for embedding data into an audio signal. In this paper, we present a new robust audio waterma
dct1_embed
- 数字水印嵌入算法，利用离散余弦变换的（dct）算法-Digital watermark embedding algorithm, using discrete cosine transform (dct) algorithm
dct1_recover
- 数字水印提取算法，利用离散余弦变换的（dct）算法-Digital watermark extraction algorithm using discrete cosine transform (dct) algorithm
dct2_embed
- 数字水印嵌入算法，利用离散余弦变换的（dct）算法，对以往的算法有所改进-Digital watermark embedding algorithm, using discrete cosine transform (dct) algorithm, an improvement on previous algorithms
dct2_recover
- 数字水印提取算法，利用离散余弦变换的（dct）算法，对以往的算法有所改进-Digital watermark extraction algorithm using discrete cosine transform (dct) algorithm, an improvement on previous algorithms
dct
- 在一个图像块中调整两个(或多个) DCT系数的相对大小。将描述一个使用数字图像作为载体的系统。在编码处理中，发送者将载体图像分成8×8的像素块，每一块只精确地编码一个秘密信息位。嵌入过程开始时，首先伪随机地选择一个图像块bi，用它对第i个消息比特进行编码。令Bi=D{bi}为DCT变换后的图像块。 在通信开始前，发送者和接收者必须对嵌入过程中使用的两个DCT系数的位置达成一致，让我们用(u1,v1)和(u2,v2)来表示这两个索引。这两个系数应该相应于余弦变换的中频，确保信息保存在信号的
dct
- matlab源码，自己编写的根据英语论文，是基于dct的可逆数据隐藏算法-Matlab source code, I have written according to the English papers, dct-based reversible data hiding algorithm
DCT
- iii) Discrete Cosine Transform The transform of a signal is just another form of representing the signal. It does not change the information content present in the signal. Discrete cosine transform is widely used in image and video compression appl
6-DCT-Based-Image-Watermarking-Using-Subsampling.
- DCT based image watermarking
BlindWatermarking-with-DCT
- DCT transformed based watermarking
DCT---Copie
- dct algorithm watermark
DCT
- 图像加密的一种算法，DCT变换用于提取图像特征(The algorithm is used to encode picture, and use DCT transform)
jt_jpeg
- dct steganography in image