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Description: It is possible that certain products which can be built using this
software modules might form inventions protected by patent rights in
some countries (e.g. by patents about arithmetic coding algorithms
owned by IBM and AT&T in the USA). Provision of this software by the
author does NOT include any licenses for any patents.
In those countries where a patent license is required for certain
applications of this software modules, you will have to obtain such
a license yourself.-It is possible that certain products which can be built using this software modules might f Vector inventions protected by patent rights in so me countries (e.g. by patents about arithmetic coding algorithms owned by IBM and AT
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Size: 60281 |
Author: xiaoqiang |
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Description: 压缩过的图像是无法直接进行数字化处理的,如JPEG、GIF等格式的文件,此时首先要对图像文件解压缩,这就要涉及到一些比较复杂的压缩算法。-compressed image can t directly process digital operation.such as jpeg,gif format.firstly ,it need decompress ,which is deal with complex compression algrithm.
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Size: 644096 |
Author: wwx |
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Description: ITU-T81 INFORMATION TECHNOLOGY–DIGITAL COMPRESSION AND CODING OF CONTINUOUS-TONE STILL IMAGES,JPEG图像压缩国际标准，对大家学习静止图像压缩很有帮助。-ITU-T81 INFORMATION TECHNOLOGY- DIGITAL CPSV AND CODING OF Continuous- TONE STILL IMAGES, JPEG image compression international standards, we still image compression learning helpful.
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Size: 967680 |
Author: 王成优 |
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Description: DIGITAL IMAGERY is pervasive in our world today. Consequently,
standards for the efficient representation and
interchange of digital images are essential. To date, some of
the most successful still image compression standards have resulted
from the ongoing work of the Joint Photographic Experts
Group (JPEG). This group operates under the auspices of Joint
Technical Committee 1, Subcommittee 29, Working Group 1
(JTC 1/SC 29/WG 1), a collaborative effort between the International
Organization for Standardization (ISO) and International
Telecommunication Union Standardization Sector (ITUT).
Both the JPEG [1–3] and JPEG-LS [4–6] standards were
born from the work of the JPEG committee. For the last few
years, the JPEG committee has been working towards the establishment
of a new standard known as JPEG 2000 (i.e., ISO/IEC
15444). The fruits of these labors are now coming to bear, as
JPEG-2000 Part 1 (i.e., ISO/IEC 15444-1 [7]) has recently been
approved as a new international standard.-DIGITAL IMAGERY is pervasive in our world t oday. Consequently, standards for the efficient representation an d interchange of digital images are essential. To date, some of the most successful still image compres sion standards have resulted from the ongoing w contex of the Joint Photographic Experts Group (JP EG). This group operates under the auspices of J oint Technical Committee 1 Subcommittee 29. Working Group 1 (JTC 1/SC 29/WG 1) a collaborative effort between the Internatio 44 Organization for Standardization (ISO) an d Stan International Telecommunication Union dardization Sector (ITUT). Both the JPEG [1-3] and JPEG-LS [4-6] standards were born from the w contex of the JPEG committee. For the last few years , the JPEG committee has been working towards th e establishment of a new
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Size: 1074176 |
Author: slam |
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Description: It is possible that certain products which can be built using this
software modules might form inventions protected by patent rights in
some countries (e.g. by patents about arithmetic coding algorithms
owned by IBM and AT&T in the USA). Provision of this software by the
author does NOT include any licenses for any patents.
In those countries where a patent license is required for certain
applications of this software modules, you will have to obtain such
a license yourself.-It is possible that certain products which can be built using this software modules might f Vector inventions protected by patent rights in so me countries (e.g. by patents about arithmetic coding algorithms owned by IBM and AT
Platform: |
Size: 60416 |
Author: xiaoqiang |
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Description: 利用Framebuffer机制实现的读取jpeg压缩格式图片并显示在屏幕上-Mechanisms use framebuffer read jpeg image compression formats and displays on the screen
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Size: 474112 |
Author: xeontz |
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Description: The program removes pixels from JPEG images by interpolation (eg to correct images from a digital camera with CCD defects). It doesn t decode and re-encode the image, but manipulates the encoded data, so that the quality is preserved as much as possible. -The program removes pixels from JPEG images by interpolation (eg to correct images from a digital camera with CCD defects). It doesn t decode and re-encode the image, but manipulates the encoded data, so that the quality is preserved as much as possible .
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Size: 112640 |
Author: zj433 |
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Description: Graphics Library 图形库，GD是一个开源的用于动态创建图像的代码库。GD能创建PNG、JPEG和GIF图像，以及一些其它格式的图像。-Graphics Library Graphics Library, GD is an open source for the dynamic creation of images of the code base. GD can create PNG, JPEG and GIF images, as well as some other format images.
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Size: 1345536 |
Author: |
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Description: JPEG编码的国际标准。详细的解释了JPEG编码中的常用词汇、算法、步骤及流程等。适用于需要对JPEG编码进行研究的。-JPEG encoding international standards. Detailed explanation of the JPEG encoding of the commonly used vocabulary, algorithms, steps and processes. Applicable to the need for JPEG encoding to conduct the studies.
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Size: 966656 |
Author: caesar |
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Description: JPEG国际标准，ISO/IEC 10918，CCITT T.81，用于灰度图与真彩图的静态图像压缩的国际标准-JPEG international standard, ISO/IEC 10918, CCITT T.81, grayscale and true color for static image compression international standards
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Size: 1090560 |
Author: 李才伟 |
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Description: full JPEG Standard ITU CCI-full JPEG Standard ITU CCITT
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Size: 941056 |
Author: 苗淼 |
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Description: This prentation file t introduce JPEG encoding-This is prentation file t introduce JPEG encoding
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Size: 1063936 |
Author: rich |
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Description: ITU-T Rec. T.800
ISO/IEC FCD15444-1 : 2-JPEG 2000 Part I Final Committee Draft Version 1.0
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Size: 1112064 |
Author: tk72 |
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Description: 此 代码库可以实现对任意图像的JPEG压缩和解压，方便大家使用，欢迎大家下载-This code base can be achieved for any of the JPEG image compression and decompression, to facilitate the use, welcome you to download! ! !
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Size: 960512 |
Author: 彭麟 |
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Description: the key processing steps of the Baseline JPEG encoder and decoder. (Refer to the attached ITU-T Recommendation T.81 for detailed information.)
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Size: 968704 |
Author: Shinji |
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Description: IDL二次开发实习内容作业包括打开各种格式的图像保存成各种格式，包括二进制、jpeg，tiff，对图像进行简单处理（平滑，增强，均衡化）-Secondary development of practical content of IDL operations include opening a variety of formats to save images into a variety of formats, including binary, jpeg, tiff, a simple image processing (smoothing, enhancement, equalization)
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Size: 2048 |
Author: loumingjing |
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Description: JPEG 静态图像压缩
各文件功能说明如下：
1) JPEG压缩程序：gendat.exe
2) 为压缩后的数据加上JPEG文件头的程序genjpg.exe
3) 解JEPG压缩程序extrdat.exe
其中：（1）的输入参量是需要生成的压缩文件的名字。
主程序流程为：
a) 程序初始化，读取文件名称、原始图像数据等基本数据；
b) 从AC.TAB和DC.TAB两个文件生成AC表和DC表，存入数组
c) 以8×8为样本单位进行DCT变换
d) 以8×8为样本单位进行量化
e) 以8×8为样本单位进行Z形扫描
f) 以8×8为样本单位进行熵编码
g) 以8×8为样本单位进行解量化
h) 以8×8为样本单位进行IDCT变换
-JPEG still image compression
Function of the documents as follows:
1) JPEG compression process: gendat.exe
2) For the compressed JPEG file header data, together with the procedures genjpg.exe
3) The solution JEPG compression program extrdat.exe
Of which: (1) the input parameters is the need to generate the compressed file s name.
The main program flow is:
a) procedures for initialization, read the file name, the original image data and other basic data
b) From the AC.TAB and DC.TAB two file generation AC table and DC table, into an array of
c) with 8 × 8 sample units for the DCT-
d) to 8 × 8 for the sample unit to quantify
e) to 8 × 8 for the sample units of Z-scan
f) to 8 × 8 for the sample units of entropy coding
g) to 8 × 8 for the sample unit to extract the quantitative
h) with 8 × 8 for the sample units IDCT transform
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Size: 12288 |
Author: 太平洋 |
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Description: JPEG 2000 book by Tynu Acharya with various VLSI implementations. Very good explanation of Tier 1 and 2 Encoding schemes. Good examples that don t assume too much background in probability
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Size: 12057600 |
Author: korhal88 |
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Description: Implementation of JPEG compression algorithm with JFIF header being appended.This project involves writting code for following steps : Chroma subsampling,partitioning ,level shifting,DCT,quantization,zigzag scanning(involves DC differential coding & AC huffman coding) & adding jfif header following the rules specified in itu-t.81.
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Size: 966656 |
Author: dwn |
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Description: JPEG标准协议官方版本，研究JPEG编解码必备资料。(JPEG standard protocol official version, research JPEG codec essential information.)
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Size: 243712 |
Author: msgop
|
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