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提示： JPEG压缩分为三个部分： 1.JPEG压缩原理及算法（RGB/YCbCr,DCT/IDCT,量化,Z字型编码,用DPCM对DC/用RLE对AC编码/Huffman编码） 2.JPEG标记格式 3.JPEG图片文件的组织形式（位于SOS后的图像压缩数据是由MCU块怎样排列的，特别是使用了DRI之后） 还有许多细节问题： 1.解码过程中遇到“FF 00”当“FF”处理，否则忽略“FF” 2.进行DCT前YCbCr要减128，进行IDCT前要加128（相当于Y减128，YCbCr不需要加128） 3.每个标记中数据可以不止一个（去掉长度的部分就是一段）-Tip : JPEG compression is divided into three parts : Principles and 1.JPEG compression algorithm (RGB/YCbCr, DCT/IDCT, quantification, Z-shaped coding, using the DPCM DC/AC with RLE encoding/Huffman coding) 2.JPEG tags 3.JPEG Photo paper form (located in the SOS image data is compressed by the MCU to set pieces, particularly after the use of DRI), there are many details : 1. decoding process encountered "FF 00," when the "FF", otherwise overlooked "FF" 2 .DCTYCbCr128IDCT128Y128YCbCr128 3.

平面二维作图 实现起来很简单 可供初学者参考-2D mapping to achieve together is very simple reference for beginners

对多媒体数据的检索，早期的方法是用文本将多媒体数据进行标识，这显然不是基于多媒体信息本身内容的检索，对多媒体数据中包含的信息是一中及大的浪费； 　　基于内容的检索是多媒体数据库的关键技术，如何实现这块技术，是值得商榷的，而最好的方法是使用无需领域知识的检索方法，因此，基于颜色的方法就是实现的关键-Retrieval of multimedia data, the method is to use an early version of the multimedia data labeling, which is not itself based on the content of multimedia information retrieval, multimedia data of the information contained in a Medium and large waste content-based retrieval of multimedia database of key technologies, how to achieve this technology, is open to question, and the best way is to use the domain knowledge without the search method, based on the color way is the key to achieve

图形学的一个演示，窗口视区变换，即世界坐标系到界面坐标系的转换，MFC实现-A presentation graphics, window area, as the transformation that the world coordinate system to the interface coordinate system conversion, MFC to achieve

四叉树图像分割的基本实现~使用Opencv编写， 读入灰度图 进行递归分割-Quadtree segmentation opencv read into grayscale prepared for recursive partitioning

一个画图的程序,图形学的作业-a drawing procedures, the graphics operations

MFC绘图示例,用于演示MFC下如何进行直线等的实现。-MFC Mapping example, the MFC for demonstrating how to achieve the straight.

vc灵感编程源程序-vc programming source of inspiration

这是一篇详细介绍人脸检测与语音驱动口型的文章，其中使用了高斯混合模型采取了无监督聚类的方法，希望对你有用。-This is a detailed introduction Face Detection and voice-driven I-type article, which uses the Gaussian mixture model taken unsupervised clustering method, in the hope that useful to you.

一个多方位演示系统，可绘制直线，园，椭圆，矩形和写文字等。-A multimediaDemo which can pain lines ,circle ,elipse and write words.