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Search - dct jpg - List
[
Compress-Decompress algrithms
]
DrakeDCT050629B
DL : 0
DCT离散余弦变换编码和解码,利用vc对bmp图像实行变换,可以对变换和恢复后的结果进行保存和观看比较结果-the program of DCT coding and decoding.It is used to transform bmp to jpg.you can compare the original bmp to transformed jpg
Update
: 2008-10-13
Size
: 63.19kb
Publisher
:
中国
[
Compress-Decompress algrithms
]
JepgCodec
DL : 0
该程序实现了jpeg编码。开发平台:Window XP, Visual C++ 6.0。 HuffmanExp 哈夫曼编码 JpgVSbmp Jpg和Bmp格式相互转换的API封装 RWJpegExp JpegVC++类 VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例 jpeg jpeg中的前向DCT变换-the program achieved a jpeg coding. Platform : Window XP, Visual C 6.0. HuffmanExp Huffman coding JpgVSbmp Broadband and Bmp format conversion API Packaging RWJpegExp JpegVC category called Broadband VbTestDll VB format and Bmp Conversion API function examples of jpeg jpeg to the DCT
Update
: 2008-10-13
Size
: 689.01kb
Publisher
:
刘啸天
[
Special Effects
]
second
DL : 0
HuffmanExp 哈夫曼编码 JpgVSbmp Jpg和Bmp格式相互转换的API封装 RWJpegExp JpegVC++类 VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例 jpeg jpeg中的前向DCT变换
Update
: 2008-10-13
Size
: 4.71mb
Publisher
:
方九志
[
Special Effects
]
11
DL : 0
HuffmanExp 哈夫曼编码 JpgVSbmp Jpg和Bmp格式相互转换的API封装 RWJpegExp JpegVC++类 VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例 jpeg jpeg中的前向DCT变换
Update
: 2008-10-13
Size
: 700.88kb
Publisher
:
韩义
[
Compress-Decompress algrithms
]
JPG
DL : 0
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,我们经常采用JPEG格式对静态图象进行编码。JPEG基本系统是一种有损编码,无法完全恢复出原图象,信息有一定的丢失,称为有损压缩。尽管我们希望能够无损压缩,但是通常有损压缩的压缩比(即原图象占的字节数与压缩后图象占的字节数之比,压缩比越大,说明压缩效率越高)比无损压缩的高。JPEG编码先把图象色彩RBG变成亮度Y和色度Cr、Cb,它利用人的视觉对色度不敏感的特点,减少一部分色度数据,以达到压缩。 JPEG采取多种编码方式,包含有行程编码(Run Length Coding)和哈夫曼(Huffman)编码,有很高的压缩比。在编码前,先对数据进行分块,离散余弦变换(DCT)及量化,保留能量大的低频信号,丢弃高频信号以达到压缩。解码时,进行熵解码,反量化,反离散余弦变换(IDCT)。
Update
: 2008-10-13
Size
: 2.71mb
Publisher
:
徐晓明
[
Compress-Decompress algrithms
]
DrakeDCT050629B
DL : 0
DCT离散余弦变换编码和解码,利用vc对bmp图像实行变换,可以对变换和恢复后的结果进行保存和观看比较结果-the program of DCT coding and decoding.It is used to transform bmp to jpg.you can compare the original bmp to transformed jpg
Update
: 2025-02-17
Size
: 63kb
Publisher
:
[
Compress-Decompress algrithms
]
jpg_DCT
DL : 0
实现基本JPEG的压缩和编码 % 1. 首先通过DCT变换去除数据冗余; % 2. 使用量化表对DCT系数进行量化; % 3. 对量化后的系数进行Huffman编码。 -achieve basic JPEG compression and coding% 1. First through DCT remove data redundancy; % 2. Using quantitative table right DCT coefficient quantization; 3. Right quantized coefficients of Huffman coding.
Update
: 2025-02-17
Size
: 1kb
Publisher
:
孙雨萌
[
Compress-Decompress algrithms
]
JepgCodec
DL : 0
该程序实现了jpeg编码。开发平台:Window XP, Visual C++ 6.0。 HuffmanExp 哈夫曼编码 JpgVSbmp Jpg和Bmp格式相互转换的API封装 RWJpegExp JpegVC++类 VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例 jpeg jpeg中的前向DCT变换-the program achieved a jpeg coding. Platform : Window XP, Visual C 6.0. HuffmanExp Huffman coding JpgVSbmp Broadband and Bmp format conversion API Packaging RWJpegExp JpegVC category called Broadband VbTestDll VB format and Bmp Conversion API function examples of jpeg jpeg to the DCT
Update
: 2025-02-17
Size
: 689kb
Publisher
:
刘啸天
[
Special Effects
]
second
DL : 0
HuffmanExp 哈夫曼编码 JpgVSbmp Jpg和Bmp格式相互转换的API封装 RWJpegExp JpegVC++类 VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例 jpeg jpeg中的前向DCT变换-HuffmanExp Huffman JpgVSbmp Jpg and Bmp format conversion of the API package RWJpegExp JpegVC++ Category VbTestDll VB call Jpg and Bmp format conversion API function jpeg jpeg examples of the former to the DCT transform
Update
: 2025-02-17
Size
: 4.71mb
Publisher
:
方九志
[
Special Effects
]
11
DL : 0
HuffmanExp 哈夫曼编码 JpgVSbmp Jpg和Bmp格式相互转换的API封装 RWJpegExp JpegVC++类 VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例 jpeg jpeg中的前向DCT变换-HuffmanExp Huffman JpgVSbmp Jpg and Bmp format conversion of the API package RWJpegExp JpegVC++ Category VbTestDll VB call Jpg and Bmp format conversion API function jpeg jpeg examples of the former to the DCT transform
Update
: 2025-02-17
Size
: 701kb
Publisher
:
韩义
[
Picture Viewer
]
RWJpegExp
DL : 0
转换bmp格式为jpg 可以调节压缩比图像质量 转换jpg为bmp 利用dct-Bmp format converter can adjust the jpg compression ratio for image quality jpg converter bmp using DCT
Update
: 2025-02-17
Size
: 2.93mb
Publisher
:
afei
[
Compress-Decompress algrithms
]
JPG
DL : 0
Update
: 2025-02-17
Size
: 6.67mb
Publisher
:
徐晓明
[
Compress-Decompress algrithms
]
jpeg
DL : 0
C代码完成jpeg编码和解码,包括dct,量化,zigzag以及霍夫曼编码、解码-C code to complete jpeg encoding and decoding, including dct, quantization, zigzag and the Huffman code, decoding
Update
: 2025-02-17
Size
: 8kb
Publisher
:
Jingya
[
2D Graphic
]
MulitDocument12-4
DL : 0
bmp JPG相互转化.FFT DCT变化-bmp JPG mutual conversion. FFT DCT changes
Update
: 2025-02-17
Size
: 10.04mb
Publisher
:
andy
[
Windows Develop
]
jpg
DL : 0
HuffmanExp 哈夫曼编码 JpgVSbmp Jpg和Bmp格式相互转换的API封装 RWJpegExp JpegVC++类 VbTestDll VB调用Jpg和Bmp格式相互转换API函数的示例 jpeg jpeg中的前向DCT变换-this is a jpeg source code
Update
: 2025-02-17
Size
: 696kb
Publisher
:
mytest
[
Compress-Decompress algrithms
]
jpegc
DL : 0
本文档实现了JPEG压缩算法,字组织比较简陋, 大体上分成 3 个部分. 压缩算法简介 1. 色彩模型 2. DCT (离散余弦变换) 3. 重排列 DCT 结果 4. 量化 5. 0 RLE 编码 6. 范式 Huffman 编码 7. DC 的编码 解码过程简述 8. 一个数据单元 Y 的解码 9. JPG 文件(Byte 级)里怎样组织图片信息 10. 关于标记 11. JPG 文件中 Haffman 表的储存 12. 采样系数 13. JPG 文件的解码简述-This document implements JPEG compression algorithm, the word organization is relatively simple, broadly divided into three parts. Compression algorithm Introduction 1. Color model 2. DCT (discrete cosine transform) 3. Re-arrangement of DCT results 4. Quantified 5. 0 RLE encoding 6 . paradigm Huffman coding 7. DC encoding decoding process outlined 8. a Y decoding data unit 9. JPG file (Byte level) where information on how to organize the images 10. on the marking 11. JPG files Haffman table storage 12. Sampling coefficient of 13. JPG file Brief decoding
Update
: 2025-02-17
Size
: 824kb
Publisher
:
george
[
Picture Viewer
]
jpg
DL : 0
The aim of this short workshop is to demonstrate the effectiveness of the JPEG encoding/decoding process using test data and test images. As explained in the lectures the major elements of the JPEG encoding process are the DCT, the non-uniform Quantisation matrix and variable run-length encoding. Building an emulator of the JPEG encoding and decoding algorithm may appear a daunting task, but Matlab is well suited to such coding.
Update
: 2025-02-17
Size
: 91kb
Publisher
:
jiang nan
[
VHDL-FPGA-Verilog
]
JPG
DL : 0
Implementing the YCBCR and DCT stage of jpeg encoding
Update
: 2025-02-17
Size
: 223kb
Publisher
:
ehsan
[
Other
]
MATLAB读取JPEG图片的DCT系数
DL : 0
jpg编解码,提取DCT系数,dc系数和ac系数的哈夫曼编码表等(Jpg coding and decoding, extracting DCT coefficients, DC coefficients and AC coefficients Huffman coding table, etc.)
Update
: 2025-02-17
Size
: 3.01mb
Publisher
:
coconut97
[
Other
]
DCT
DL : 0
针对.jpg文件的图片隐写算法实现,图片隐写jsteg算法,matlab实现。(Picture steganography)
Update
: 2025-02-17
Size
: 122kb
Publisher
:
NSPlcy
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