Location:
Search - jpeg TO B
Search list
Description: （利用GIF_LZW算法实现的）网络图片传输 技术特点 ~~~~~~~~ 一、使用TCP协议传输数据。理由：稳定性好。 二、使用字节数据流进行传输，理由： A:VB的String存在自动Unicode转换问题，影响速度； B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。 三、使用GIF-LZW压缩算法压缩图像。理由： A:行程编码、Huffman压缩算法压缩率太低； B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现； C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。 四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-(using GIF_LZW algorithm) picture transmission network ~~~~~~~~ a technical features, the use of TCP to transmit data. Reason : good stability. Two, the use of byte data stream for transmission, reasons : A : VB String exist automatically Unicode conversion, the impact speed; B : can directly send eight bytes of data and do not need to use Base64 encoding, thereby reducing the coding time. 3, the use of GIF - LZW compression algorithm for image compression. Reason : A : itinerary coding, Huffman compression algorithm compression rate is too low; B : JPEG compression algorithm needs much-bit computing, and large amount of computation (with MMX specialized optimization algorithm), is not conducive to VB; C : GIF - LZW compression algorithm compression ratio better, and I have come up with un
Platform: |
Size: 62518 |
Author: 房 |
Hits:
Description: （利用GIF_LZW算法实现的）网络图片传输 技术特点 ~~~~~~~~ 一、使用TCP协议传输数据。理由：稳定性好。 二、使用字节数据流进行传输，理由： A:VB的String存在自动Unicode转换问题，影响速度； B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。 三、使用GIF-LZW压缩算法压缩图像。理由： A:行程编码、Huffman压缩算法压缩率太低； B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现； C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。 四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-(using GIF_LZW algorithm) picture transmission network ~~~~~~~~ a technical features, the use of TCP to transmit data. Reason : good stability. Two, the use of byte data stream for transmission, reasons : A : VB String exist automatically Unicode conversion, the impact speed; B : can directly send eight bytes of data and do not need to use Base64 encoding, thereby reducing the coding time. 3, the use of GIF- LZW compression algorithm for image compression. Reason : A : itinerary coding, Huffman compression algorithm compression rate is too low; B : JPEG compression algorithm needs much-bit computing, and large amount of computation (with MMX specialized optimization algorithm), is not conducive to VB; C : GIF- LZW compression algorithm compression ratio better, and I have come up with un
Platform: |
Size: 62464 |
Author: 房 |
Hits:
Description: 这是我用做的一个关于图形曲线的程序，可以绘制B样曲线功能-This is what I used to do a graphic curve on the procedure mapped B-spline curves function
Platform: |
Size: 2048 |
Author: yang |
Hits:
Description: MapEasy is a web mapping client api which has an alogy with Google Map Api. It helps to build a map-based application easily.
Based on Javascript and AJAX technology, MapEasy will work on most modern browsers (Firefox 1.0+, Internet Explorer 6.0+) using simple Javascript calls. Independent from the concrete GIS technology and specification, MapEasy allows you to request maps as rendered images (normally JPEG,PNG or GIF), and fufills the normal GIS functions such as locating, zooming, and marking...
Key Features:
open source
pure javascript application
easy to use
API is similar to google map api
decouple the map view and the data service. independant from the specifical map data service
self define Plane Coordinate system(not available yet)
customisable and easy to extend
support IE6, Firefox/Mozilla, Opera(not available on Opera yet)
support Latitude/Longitude Coordinate System
-MapEasy is a web mapping client api which has an alogy with Google Map Api. It helps to build a map-based application easily.Based on Javascript and AJAX technology, MapEasy will work on most modern browsers (Firefox 1.0+, Internet Explorer 6.02 B!) using simple Javascript calls. Independent from the concrete GIS technology and specification, MapEasy allows you to request maps as rendered images (normally JPEG, PNG or GIF), and fufills the normal GIS functions such as locating, zooming, and marking. .. Key Features: open source pure javascript application easy to use API is similar to google map api decouple the map view and the data service. independant from the specifical map data service self define Plane Coordinate system (not available yet) customisable and easy to extend support IE6, Firefox/Mozilla, Opera (not available on Opera yet) support Latitude/Longitude Coordinate System
Platform: |
Size: 96256 |
Author: tim.wu |
Hits:
Description: JPEG转BMP的简单实现代码~
JPEG转BMP的简单实现代码~-JPEG to BMP simple code to achieve ~ JPEG to BMP simple code ~
Platform: |
Size: 2048 |
Author: kin |
Hits:
Description: JPEG 解码程序，可以将JPEG图像解码成R,G,B格式，形成文件，然后提供给嵌入式系统进行图片的显示-JPEG decoding process can be JPEG image decoding into R, G, B format, the formation of a document, and then made available to the embedded system for image display
Platform: |
Size: 1851392 |
Author: John Wang |
Hits:
Description: 一、使用TCP协议传输数据。理由：稳定性好。
二、使用字节数据流进行传输，理由：
A:VB的String存在自动Unicode转换问题，影响速度；
B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。
三、使用GIF-LZW压缩算法压缩图像。理由：
A:行程编码、Huffman压缩算法压缩率太低；
B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现；
C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。
四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-First, use the TCP protocol to transmit data. Reason: better stability.
Two, the use of byte data stream for transmission, the reasons:
A: VB s String existence automatic Unicode conversion question, effects of speed
B: can directly send 8-bit byte data, Does not need to use Base64 encoding, thereby reducing the encoding time.
Three, the use of GIF-LZW compression algorithm for image compression. Rationale:
A: Run-Length Coding, Huffman compression algorithm compression ratio is too low
B: JPEG compression algorithm required too many bit computing, and computing a large quantity (MMX has specialized optimization algorithm), VB is not conducive to implementation
C: GIF-LZW compression algorithm compression ratio is better, and I have come up with efficient under VB grammar GIF-LZW compression/decompression algorithm.
Four, use the "orderly jitter" algorithm for color quantization. Rationale: "orderly jitter" must deal with the results of reg
Platform: |
Size: 54272 |
Author: whoamixp |
Hits:
Description: 一个文件，完全用C写的，没有任何的C++和动态链接库，实现读取jpeg文件，解压为bmp文件。-a c code decompress jpeg file to bmp.
Platform: |
Size: 1523712 |
Author: 高浩然 |
Hits:
Description: 编译源文件生成可执行文件TestLibjpeg.exe，
此程序可以转换bmp位图为jpg格式，或解压缩
jpg格式图像为bmp格式。
将需转换的bmp格式图片存到和TestLibjpeg.exe
相同的文件夹下，在DOS界面下使用命令行参数
bmp到jpeg的转换使用：TestLibjpeg.exe j 原图片名.bmp 目标图片名.jpg
jpeg到bmp的转换使用：TestLibjpeg.exe b 原图片名.jpg 目标图片名.bmp-
AppWizard has created this TestLibjpeg application for you.
This file contains a summary of what you will find in each of the files that
make up your TestLibjpeg application.
TestLibjpeg.dsp
This file (the project file) contains information at the project level and
is used to build a single project or subproject. Other users can share the
project (.dsp) file, but they should export the makefiles locally.
TestLibjpeg.cpp
This is the main application source file.
/////////////////////////////////////////////////////////////////////////////
Other standard files:
StdAfx.h, StdAfx.cpp
These files are used to build a precompiled header (PCH) file
named TestLibjpeg.pch and a precompiled types file named StdAfx.obj.
Platform: |
Size: 323584 |
Author: cy |
Hits:
Description: Convert a color image between color representations.
B = COLORSPACE(S,A) converts the color representation of image A
where S is a string specifying the conversion. S tells the
source and destination color spaces, S = dest<-src , or
alternatively, S = src->dest . Supported color spaces are
RGB R G B Red Green Blue (ITU-R BT.709 gamma-corrected)
YPbPr Luma (ITU-R BT.601) + Chroma
YCbCr / YCC Luma + Chroma ("digitized" version of Y PbPr)
YUV NTSC PAL Y UV Luma + Chroma
YIQ NTSC Y IQ Luma + Chroma
YDbDr SECAM Y DbDr Luma + Chroma
JPEGYCbCr JPEG-Y CbCr Luma + Chroma
HSV / HSB Hue Saturation Value/Brightness
HSL / HLS / HSI Hue Saturation Luminance/Intensity
XYZ CIE XYZ
Lab CIE L*a*b* (CIELAB)
Luv CIE L*u*v* (CIELUV)
Lch CIE L*ch (CIELCH)-Convert a color image between color representations. B = COLORSPACE (S, A) converts the color representation of image A where S is a string specifying the conversion. S tells the source and destination color spaces, S = ' dest <-src' , or alternatively, S = ' src-> dest' . Supported color spaces are ' RGB' R' G' B ' Red Green Blue (ITU-R BT.709 gamma-corrected)' YPbPr ' Luma (ITU-R BT.601 )+ Chroma ' YCbCr' /' YCC' Luma+ Chroma ( " digitized" version of Y' PbPr) ' YUV' NTSC PAL Y' UV Luma+ Chroma ' YIQ' NTSC Y' IQ Luma+ Chroma ' YDbDr' SECAM Y ' DbDr Luma+ Chroma ' JPEGYCbCr' JPEG-Y' CbCr Luma+ Chroma ' HSV' /' HSB' Hue Saturation Value/Brightness' HSL ' /' HLS ' /' HSI ' Hue Saturation Luminance/Intensity' XYZ ' CIE XYZ' Lab ' CIE L* a* b* (CIELAB)' Luv ' CIE L* u* v* (CIELUV)' Lch ' CIE L* ch (CIE
Platform: |
Size: 4096 |
Author: 张灯结 |
Hits:
Description: 能够打开png，jpeg，bmp，gif图像格式能在VC6.0上运行，经过我亲手调试~！-It can be used in VC6.0 to open the picture type of png,jpeg,bmp and gif~！I have test by myself excectly~!
Platform: |
Size: 4840448 |
Author: 林礼挺 |
Hits:
Description: RGB,YCbCr,HSV,HSL,CIE等颜色空间转换
这个Matlab程序用于颜色空间的转换。可以在RGB, YPbPr, YCbCr, YUV, YIQ, YDbDr, JPEG-YCbCr, HSV, HSL, XYZ, CIE Lab (CIELAB), CIE Luv (CIELUV), and CIE Lch (CIELCH)等颜色空间中任意转换。-B = colorspace( dest<-src , A) converts image A from color space src to color space dest .
Example:
B = colorspace( HSV<-RGB ,A) Convert image A from RGB to HSV
C = colorspace( YCbCr<-HSV ,B) Convert HSV to YCbCr
D = colorspace( RGB<-YCbCr ,C) Convert YCbCr back to RGB
Platform: |
Size: 4096 |
Author: 李佳航 |
Hits:
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
Platform: |
Size: 12288 |
Author: 太平洋 |
Hits:
Description: jpeg to data matrix in r,g,b
Platform: |
Size: 2822144 |
Author: suhu |
Hits:
Description: 把jpeg图形转换为bmp图形,用mfc写的-Convert bmp to jpeg graphics graphics, written by mfc
Platform: |
Size: 536576 |
Author: zhaomx |
Hits:
Description: 按如下说明使用此代码：
1.将BC45.rar解压到D:2.将JPEGCode解压到D:3.解压1.Src(自己整理的).rar到D:\JPEGCode目录下
4.运行批处理Build
5.cd src
6.编译生成可执行程序(make)
7.测试代码(make test)
8.清除编译过程文件，包括可执行程序(make clean)
9.体会原版配置编译过程
a)删除3.解压目录
b)解压2.Src(原版).rar到D:\JPEGCode目录下
c)进行步骤4-8
在此感谢作者：Thomas G.Lane的辛勤劳动，因为参与
才会体会过程的艰辛。
--Write By Lsccls
Data 7/12/2012-Following instructions to use this code: 1. BC45.rar extract it to D: \ will JPEGCode extract it to the D: \ unzip 1.Src (finishing). Rar to D: \ JPEGCode directory 4. Run batch the Build 5.cd the src 6 compiler generates an executable program (make) test code (make test) 8. clear the file of the compilation process, including the executable program (make clean). experience the original configuration compilation process a) to delete (3) extract the directory b) to unzip 2.Src (original) rar to D: \ JPEGCode directory c) steps 4-8 would like to thank the author: Thomas G.Lane the hard work, because participation in the process will experience hardships .- Write By Lsccls Data 7/12/2012
Platform: |
Size: 3283968 |
Author: lsccls |
Hits:
Description: （利用GIF_LZW算法实现的）网络图片传输
一、使用TCP协议传输数据。理由：稳定性好。
二、使用字节数据流进行传输，理由：
A:VB的String存在自动Unicode转换问题，影响速度；
B:可以直接发送8位字节数据，不需要使用Base64编码，从而减少了编码时间。
三、使用GIF-LZW压缩算法压缩图像。理由：
A:行程编码、Huffman压缩算法压缩率太低；
B:JPEG压缩算法需要太多位运算，且运算量大（有专门MMX优化算法），不利于VB实现；
C:GIF-LZW压缩算法压缩率较好，且我已想出VB语法下高效GIF-LZW压缩/解压算法。
四、使用“有序抖动”算法进行 色彩量化。理由：“有序抖动”处理的结果具有一定规律性，有助于LZW类算法压缩。-(Using GIF_LZW algorithm) network picture transmission one, use the TCP protocol to transfer data. Reasons: good stability. Second, the use of byte data stream for transmission reasons: A: VB' s String automatic Unicode conversion problem exists, impact speed B: You can directly send 8 bytes of data, do not need to use Base64 encoding, thereby reducing the encoding time. Third, the use of GIF-LZW compression algorithm to compress the image. Rationale: A: run-length encoding, Huffman compression algorithm compression rate is too low : JPEG compression algorithm requires too many bit operations, and the large amount of computation (specifically MMX optimization algorithm), and not conducive to the realization of VB C: GIF-LZW compression algorithm The compression ratio is better, and I have come up with the VB syntax efficient GIF-LZW compression/decompression algorithm. Ordered dithering algorithm for color quantization. The reason: " ordered dithering" the results of trea
Platform: |
Size: 133120 |
Author: 霍小刘 |
Hits:
Description: 请人用delphi开发的B超管理系统.ＷＩＮＤＯＷＳ下开发的Ｂ超图象管理系统ＭＥＤＩＷＳ系统，使用低成本视频图象采集卡及其驱动程序、新颖的ＪＰＥＧ压缩算法、完善的报告编辑环境等技术
-Asked people to use delphi development B-management system. WINDOWS developed under the B-picture management system MEDIWS system, using low-cost video image capture card and its drivers, new JPEG compression algorithm, perfect editing environment and other technical reports
Platform: |
Size: 14808064 |
Author: gys |
Hits:
Description: This function plots a Gaussian impulse response, unit impulse and the
convolution/deconvolution of both using MATLAB s filter . Specifically
it uses filter rather than deconv to do the deconvolution and thereby
returns the original Gaussian vector as well as the unit response vector.
Vector length is maintained at 16 in all cases, the length of the input
data vectors.
By specifying a string for a filename you can save your
plot to a jpeg file. You can either edit the variables g , h and t
to provide your data in row vector format or edit the given
inputData.mat file to suit your needs.
EX:
>> [a b c] = plotImpulses( afigure )-This function plots a Gaussian impulse response, unit impulse and the
convolution/deconvolution of both using MATLAB s filter . Specifically
it uses filter rather than deconv to do the deconvolution and thereby
returns the original Gaussian vector as well as the unit response vector.
Vector length is maintained at 16 in all cases, the length of the input
data vectors.
By specifying a string for a filename you can save your
plot to a jpeg file. You can either edit the variables g , h and t
to provide your data in row vector format or edit the given
inputData.mat file to suit your needs.
EX:
>> [a b c] = plotImpulses( afigure )
Platform: |
Size: 66560 |
Author: anish |
Hits: