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...
dct-old技术资料
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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 wa...
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...
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 === === === === === === === === ===== M...
=== === === === === === === === === === ==== IBM PC KEYBOARD INFORMATION FOR SOFTWARE DEVELOPERS =
=== === === === === === === === === === ==== IBM PC KEYBOARD INFORMATION FOR SOFTWARE DEVELOPERS =...
几种常用的压缩算法 本程序包含以下功能： 1、 Arithmetic coding 2、 Huffman coding 3、 LZ77 coding 4、 LZ78 coding 5、 L
几种常用的压缩算法 本程序包含以下功能： 1、 Arithmetic coding 2、 Huffman coding 3、 LZ77 coding 4、 LZ78 coding 5、 L...
the attached utility is a work I ve submitted to the university It shows what a jpeg compression is
the attached utility is a work I ve submitted to the university It shows what a jpeg compression is...
Back in 2002, the 6502 disappeared out of all catalogues. Wanted to know, if it s possible to buil
Back in 2002, the 6502 disappeared out of all catalogues. Wanted to know, if it s possible to buil...
--- --- --- --- --- --- Visual Studio Project Renamer For Win9x/NT/2k By Niek Albers nie
--- --- --- --- --- --- Visual Studio Project Renamer For Win9x/NT/2k By Niek Albers nie...
本论文主要介绍了JPEG的编码和解码过程。该程序的编码部分能把一张BMP格式的图象进行JEPG编码
本论文主要介绍了JPEG的编码和解码过程。该程序的编码部分能把一张BMP格式的图象进行JEPG编码，压缩成以二进制形式保存的文件；通过相应的解码程序又可以把图象解压缩出来。在图象传送过程中，我们经常采...