MATLAB函数文件，本函数将利用DCT变换完成对输入图像进行压缩。输入为灰度图像。

开源的JPEG格式图片解码C语言程序库，其中包含已移植的avr，pic单片机版本以及原始的VC版本。本人亲测，移植到stm32f103单片机中，正常使用，效果非常好。其特点是可以解码所有的jpeg格式图片。本人在项目中选用的一款摄像头给出的编码后的jpeg图片非常规格式。主流的jpeg解码程序库无法正常解码。使用该程序库后可正常解码。

采用VC代码实现JPEG图像压缩，DCT变换，霍夫曼编码

使用C语言实现的JPEG图形编码，实现了从BMP位图至JPEG格式图像的转化

用C++实现的压缩、解压缩算法，只有几个cpp、h文件，非常小巧，方便学习算法用。

利用C语言实现JPEG图片解码，转换为BMP图片，在将其灰度化，自定义阈值二值化。

This distribution contains routines for manipulating files formatted according to the Joint Photographic Experts Group (JPEG) standard. Matlab's built-in IMREAD and IMWRITE functions provide basic conversion between JPEG files and image arrays. The routines in this package provide additional functionality for directly accessing the contents of JPEG files from Matlab, including the Discrete Cosine Transform (DCT) coefficients, quantization tables, Huffman coding tables, color space information, and comment markers. It is assumed that the user of this software has a good understanding of both the JPEG compression standard and Matlab data structures. This software is based in part on the work of the Independent JPEG Group (IJG), as it makes use of IJG's free JPEG code library. If the MEX file binaries provided in this distribution are not the ones you need for your system, you will need to download IJG's code library and install it on your system before compiling the source code. See "Installing" for more details. ---- Phil Sallee 9/2003

jpeg压缩的matlab程序，实现bmp图像的dct变换、量化、编码的过程，编译通过。

详细信息请参考： http://blog.csdn.net/ajaxhe/article/details/7383800

基于jpeg ghosts的图像篡改检测算法基于jpeg ghosts的图像篡改检测算法