Description: 快速dct和idct的C程序源码，而且提供了一些优化了的idct的汇编代码。-C source code of fast DCT and IDCT, and some optimized compilation code of IDCT Platform: |
Size: 71936 |
Author:刘汝 |
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Description: 快速dct和idct的C程序源码，而且提供了一些优化了的idct的汇编代码。-C source code of fast DCT and IDCT, and some optimized compilation code of IDCT Platform: |
Size: 71680 |
Author:刘汝 |
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Description: 图象的离散余弦变换的源代码.做数字水印的同学可参考.-images of discrete cosine transform the source code. Digital watermarking so students can reference. Platform: |
Size: 1024 |
Author:guying |
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Description: 整理的JPEG的编码器，全员源码，非常适合初学者，搞清DCT、Huffman，jpeg 语法等。-finishing JPEG encoder, the full source code, are very suitable for beginners, get DCT, Huffman, jpeg syntax, and so on. Platform: |
Size: 101376 |
Author:赵真清 |
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Description: 基于C++语言的静态图象压缩编码，JPEG DCT量化编码 C++程序,对学习图像压缩编码的过程和具体实现很有帮助。-based on the C language static image compression, JPEG DCT quantization coding C procedures, learning right image coding process and to achieve specific helpful. Platform: |
Size: 131072 |
Author:朱国福 |
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Description: Visual C++编写的图像的离散余弦变换和小波变换的源代码，可直接运行。-prepared by the images of discrete cosine transform and wavelet transform the source code can run. Platform: |
Size: 69632 |
Author:youliang |
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Description: 离散傅立叶变换，在数字图像的频域处理中经常使用的变换，源代码为VC6开发环境。-Discrete Fourier Transform in the frequency domain of digital image processing frequently used transform, the source code for VC6 development environment. Platform: |
Size: 150528 |
Author:bmws |
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Description: 使用DCT算法实现8X8的BMP图像压缩的一个源代码，希望对大家有用~-8x8 algorithm using DCT image compression of BMP, a source code, in the hope that useful to everyone ~ Platform: |
Size: 3072 |
Author:viconia |
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Description: DCT域数字水印嵌入的嵌入和提取源代码，仅供学习使用-DCT-domain embedded digital watermark embedding and extraction of source code, only learning to use Platform: |
Size: 1024 |
Author:苏轶昌 |
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Description: dct.pdf中介绍的公式非常经典，但其中的一段源程序有一些错误，但在C文件dctmatrix.c有了修正。
dctmatrix.c给出了如何定标DCT系数。
dctmatrix.c中，FIX_DCTMTX_2[Rows][Columns]采用Q11定标,FIX_DCTMTX采用Q15定标。
DCTMTX_2[Rows][Columns]*2=DCTMTX[Rows][Columns]-dct.pdf formula described in a very classic, but a section of source code has some mistakes, but in C has been amended dctmatrix.c document. How dctmatrix.c given DCT coefficient calibration. dctmatrix.c in, FIX_DCTMTX_2 [Rows] [Columns] using Q11 calibration, FIX_DCTMTX calibration using Q15. DCTMTX_2 [Rows] [Columns]* 2 = DCTMTX [Rows] [Columns] Platform: |
Size: 91136 |
Author:haoding |
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Description: DCT变换的源代码，支持一维二维DCT变换及反变换-DCT transform of the source code, to support the one-dimensional two-dimensional DCT transform and inverse transform Platform: |
Size: 2048 |
Author:brenton |
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Description: ARM汇编，实现DCT算法，图像压缩，JPEG
需要loadmemory，里面附带load文件示例以及样子图片，raw格式-ARM compilation and realizing DCT algorithm, image compression, JPEG need loadmemory, incidental load inside sample documents, as well as look like picture, raw format Platform: |
Size: 10240 |
Author:林锋 |
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Description: 数字水印Linux系统下的实现
Peter Meerwald
Dept. of Scientific Computing, University of Salzburg-Watermarking source
version 0.4
* bug fixes
- wm_xia_{e|d}.c variable level uninitialized
- wm_zhu_{e|d}.c variable level uninitialized
- issue with random() vs. rand() and RAND_MAX in frid2_common.c
* added option to bruyn algorithm to disable block skipping
* added algorithm kim
version 0.3
* added nice manual/documentation
* added algorithms by Dugad, Wang, Zhu, Fridrich
* added Makefiles for Win32 plattform (mingw32)
version 0.2
* added contribution by Vassilis Fotopoulos (Piva s algorithm,
DCT, Hartley and subband domain)- see Fotopoulos/ subdirectory
* stuff moved to Meerwald/ subdirectory
* added Bruyndonckx, Corvi, Koch, Xia, Xie algorithms
version 0.1
* initial release
Peter Meerwald
Dept. of Scientific Computing, University of Salzburg
pmeerw@cosy.sbg.ac.at
http://www.cosy.sbg.ac.at/~pmeerw/Watermarking
Platform: |
Size: 548864 |
Author:lunch |
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Search - dct c source code