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Tip : JPEG compression is divided into three parts : Principles and 1.JPEG compr...
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.
- 2022-01-25 19:23:45下载
- 积分:1
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bezier curve, respond mouse
Bezier曲线,控制点由鼠标响应实现-bezier curve, respond mouse
- 2022-03-25 21:56:58下载
- 积分:1
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OCR应用Matlab源代码
source code for OCR in matlab using -source code for OCR in matlab using NN
- 2023-06-09 06:10:04下载
- 积分:1
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Alphat透明合成系统源代码源代码,呵呵,下载它,G.
Alphat透明合成系统源代码源代码,呵呵,下载吧,将gif图转化成透明的-Alphat transparent Synthesis System source code source code, huh, download it, gif map into transparent
- 2022-05-26 07:14:54下载
- 积分:1
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一个RGB转YUV420很好的程序,经典程序
一个RGB转YUV420很好的程序,经典程序-RGB switch to YUV420 great program
- 2022-05-23 02:35:37下载
- 积分:1
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directory
这是一个利用计算机图形学画直线的算法,希望给初学者带来帮助-directory
- 2022-03-14 19:59:26下载
- 积分:1
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按所需的颜色显示不同的区域
按所需的颜色显示不同的区域- According to color demonstration different region which needs
- 2022-03-09 21:56:58下载
- 积分:1
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这是用MFC编写的使用openGL的视口代码。
CChildView::CChildView() 构造函数
CChildView::~CChildVie...
这是用MFC编写的使用openGL的视口代码。
CChildView::CChildView() 构造函数
CChildView::~CChildView() 析构函数
BEGIN_MESSAGE_MAP(CChildView,CWnd ) 消息映射
BOOL CChildView::PreCreateWindow(CREATESTRUCT& cs)创建窗口重新设置窗口参数
BOOL CChildView::PreTranslateMessage( MSG* pMsg ) 翻译消息
int CChildView::OnCreate( LPCREATESTRUCT lpCreateStruct ) 窗口创建好后进入此函数 完成openGL的初始化
void CChildView::OnSize( UINT nType, int cx, int cy ) 当窗口大小发生改变时重新设置OPenGL的视口参数。
void CChildView::OnDestroy() 销毁窗口 -It is written in MFC to use openGL viewport code. CChildView:: CChildView () constructor CChildView:: ~ CChildView () destructor BEGIN_MESSAGE_MAP (CChildView, CWnd) message map BOOL CChildView:: PreCreateWindow (CREATESTRUCT & cs) to create a window to reset the window parameters BOOL CChildView:: PreTranslateMessage (MSG* pMsg ) translation of the message int CChildView:: OnCreate (LPCREATESTRUCT lpCreateStruct) window is created and entered this function to complete openGL initialization void CChildView:: OnSize (UINT nType, int
- 2022-03-16 00:49:44下载
- 积分:1
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使用CImage.lib,Jpeg.lib,png.lib开发的屏幕保护程序,可以显示多种图形格式...
使用CImage.lib,Jpeg.lib,png.lib开发的屏幕保护程序,可以显示多种图形格式- Uses CImage.lib, Jpeg.lib, the png.lib development screen
saver, may demonstrate the many kinds of graphs form
- 2022-04-24 06:00:35下载
- 积分:1
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一个中国地图的控件,使用方便,也很有意思。点击对应部分显示对应部分的信息!...
一个中国地图的控件,使用方便,也很有意思。点击对应部分显示对应部分的信息!-a map of China"s control, ease of use, is also very interesting. Click on the corresponding part of the show counterparts information!
- 2022-03-17 16:07:47下载
- 积分:1