提出一种基于视觉特性的图像摘要算法
提出一种基于视觉特性的图像摘要算法，增大人眼敏感的频域系数在计算图像Hash时的权重，使得图像Hash更好地体现视觉特征，并提高鲁棒性。将原始图像的分块DCT系数乘以若干由密钥控制生成的伪随机矩阵，再对计算的结果进行基于分块的Watson人眼视觉特性处理，最后进行量化判决产生固定长度的图像Hash序...
dct-old技术资料
📦 资源总数：351
💻 源代码：24404
🔥 dct-old热门资料
查看全部351个资源 »I have a dream that I am always young. Then I will have enough energy to do everything whenever I wa
I have a dream that I am always young. Then I will have enough energy to do everything whenever I want. Moreover, I don t have to worry about the old ...
由上述实验过程的图像变化可知
由上述实验过程的图像变化可知，经过傅立叶变换和反变换及DCT离散余弦变换和反变换后，图像都发生了很大的变化，首先是经过2-D傅立叶变换后，图像数据频域出现高频数据集中，低频数据在四周的现象，然后再经过2-D傅立叶变换反变换后，图像再次恢复原始图。而2-D离散余弦变换对图像的影响也是如此。...
Jpeg2000编解码器
Jpeg2000编解码器，附VC、Delphi等常用编程语言的使用例程 J2K-Codec ver 1.9 === === === === === === === === ===== Make your graphics look better with an easy-to-use ...
=== === === === === === === === === === ==== IBM PC KEYBOARD INFORMATION FOR SOFTWARE DEVELOPERS =
=== === === === === === === === === === ==== IBM PC KEYBOARD INFORMATION FOR SOFTWARE DEVELOPERS ===================================================...
💻 dct-old源代码
查看更多 »📂 dct-old资料分类