Description: 站长！这是DCT域的图像数字水印嵌入及提取程序！请查收！暂归入加密解密类别！-head! This is the DCT Digital watermark embedding and extraction procedure! Please find! Encryption and decryption temporarily classified categories! Platform: |
Size: 1477632 |
Author:Jesson |
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Description: dct和混沌相结合的图像加密，速度较慢但可以用来学习-DCT and chaotic combination of image encryption, slower but can be used to study Platform: |
Size: 1024 |
Author:223 |
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Description: matlab程序添加水印的DCT算法，先将水印加密，然后嵌入图像中-matlab program to add a watermark in the DCT algorithm, first the watermark encryption, and embedded images Platform: |
Size: 2048 |
Author:高坛 |
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Description: 彩色数字水印的程序，实现在彩色图像中通过DCT变换来嵌入水印信息-Color digital watermarking process to achieve the color image by DCT transform to embed watermarks Platform: |
Size: 424960 |
Author:song |
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Description: 本文算法是将24 位真彩图的亮度分量分块
DCT ,然后利用DCT 量化系数的奇偶特性嵌入8
位灰度水印图,并通过PN 序列加密来保证水印的
安全性。算法中,将灰度图像转换为二进制数据
流,置乱后扩频调制,隐藏在宿主DCT 系数量化值
中,提取时不需要宿主信号,实现水印信号的盲提
取。-This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction. Platform: |
Size: 284672 |
Author:王秀梅 |
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Description: 其使用dct的方法实现图像水印，经检测，其鲁棒性较好，原图像不可见性也较好。包含了加密解密算法，可以实现不需要原图的解密。(The use of dct method to achieve image watermarking, after testing, its robustness is better, the original image invisibility is better. Contains the encryption and decryption algorithms, you can achieve the original image does not require the decryption.) Platform: |
Size: 1024 |
Author:未曾走远 |
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