Description: 新一代静止图像压缩编码标准JPEG2000概述* 丁贵广 郭宝龙 西安电子科技大学 机电工程学院 西安 710071 guiguangd@263.net 摘要随着多媒体技术应用的不断增加图像压缩技术不仅要求具有较高的压缩性能而且还要求有新的特征来满足一些特殊的要求为此国际标准化组织ISO指定了新一代静止图像压缩标准JPEG2000本文通过对JPEG2000中核心算法EBCOT的详细分析阐述了JPEG2000压缩标准新的特征以及与现有压缩标准相比显示出来的优越性能 关键词JPEG2000小波变换EBCOT彩色图像编码-new generation of static image compression coding standard JPEG2000 outlined * Ding Guang Guo Baolong Xi'an University of Electronic Science and Electrical and Mechanical Engineering College, Xi'an 710071 guiguangd@263.net Abstract multimedia technology with the increasing use of image compression technology not only requires a high compression performance, but also requires new features to meet the special requirements for this ISO designation of a new generation of still image compression standard JPEG2000 Based on the core JPEG2000 algorithm EBCOT the detailed analysis described JPEG2000 compression standard and the new features with the existing compression standard compared to demonstrate the superiority can Keywords JPEG2000 wavelet transform EBCOT Color Image Coding Platform: |
Size: 257703 |
Author:景仁 |
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Description: 新一代静止图像压缩编码标准JPEG2000概述* 丁贵广 郭宝龙 西安电子科技大学 机电工程学院 西安 710071 guiguangd@263.net 摘要随着多媒体技术应用的不断增加图像压缩技术不仅要求具有较高的压缩性能而且还要求有新的特征来满足一些特殊的要求为此国际标准化组织ISO指定了新一代静止图像压缩标准JPEG2000本文通过对JPEG2000中核心算法EBCOT的详细分析阐述了JPEG2000压缩标准新的特征以及与现有压缩标准相比显示出来的优越性能 关键词JPEG2000小波变换EBCOT彩色图像编码-new generation of static image compression coding standard JPEG2000 outlined* Ding Guang Guo Baolong Xi'an University of Electronic Science and Electrical and Mechanical Engineering College, Xi'an 710071 guiguangd@263.net Abstract multimedia technology with the increasing use of image compression technology not only requires a high compression performance, but also requires new features to meet the special requirements for this ISO designation of a new generation of still image compression standard JPEG2000 Based on the core JPEG2000 algorithm EBCOT the detailed analysis described JPEG2000 compression standard and the new features with the existing compression standard compared to demonstrate the superiority can Keywords JPEG2000 wavelet transform EBCOT Color Image Coding Platform: |
Size: 257024 |
Author:景仁 |
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Description: 完全支持.net 2.0编写，对下一代操作系统平稳过渡。
同时支持.net的WinForm和WebForm，一体化解决B/S和C/S组件互联问题。
支持干扰点和干扰线，图像扭曲，增加机器识别难度。
直接提供保存为流、图像、文件功能。
验证码文字可设定渐变，加强图像美感，同时也增加机器识别难度。
验证码中采用的汉字是非常常见的常用字，不必担心用户不认识的问题。
本组件经过多种平台环境负荷压力测试，运行稳定、速度快、资源占用低。-Fully supported. Net 2.0 to prepare for the next generation operating system, a smooth transition. At the same time support. Net of WinForm and WebForm, integrated solution to B/S and C/S Component Interconnect issues. To support the interference point and the interference line, image distortion, increasing the difficulty of machine recognition. Directly saved as streaming, images, documents function. Verification Code Gradient text can be set to enhance the aesthetic image, but also increase the difficulty of machine recognition. Verification Code used is a very common Chinese characters commonly used words, not have to worry about the problem of users do not know. After the components across multiple platforms environmental load stress testing, operation stability, speed and low resource occupancy. Platform: |
Size: 98304 |
Author:刘庸 |
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Description: 形码生成与识别的研究及实现(要求用C#或VB.NET实现 )1.条形码生成：通过对条形码结构、编码规则的学习和对C#中图像的读取及图像的基本操作的掌握，学会用GDI生成Code39条形码，或者用特殊字体的方式生成条形码，最终将输入的文字信息转化成符合国际标准的条形码。
2、条形码识别：确定系统框架，用C#完成课题的详细设计和代码编写，根据条形码的码制规则，对以图片方式获得的条形码通过图像处理相关知识经滤波、边缘检测、区域分割等处理进行识别，将条形码信息解析成相应文字-Code generation and recognition of research and the realization (requires C# Or VB.NET to achieve) 1. Bar code generation: structure of bar codes, coding rules for learning and C# Read in the image and the image of the basic operation of the master , learn how to use GDI to generate Code39 barcodes or special way to generate bar code fonts, the text will eventually enter the information into the bar code in line with international standards. 2, bar code recognition: the system framework, the C# Completed the detailed design and coding, the code system in accordance with the rules of the bar code on the way to the bar code image through image processing-related knowledge by filtering, edge detection, region segmentation, such as dealing with identification, bar code information into the appropriate text analysis Platform: |
Size: 12288 |
Author:wangchuanmeng |
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Description: ASP.NET 2.53 缩略图水印组件源码
1.文字边缘（文字水印）； 2.图片旋转加水印； 3.修复水印位置旋转控制的精准度； 4.新增原图自定义删除 5.图像亮度、对比度、RGB颜色值的调整； 6.可获取生成后的图片路径 7.修复图片无损生成 8.修复之前的几处Bug 9.新增水印文字阴影禁启用 10.水印文字中文字竖形排列,增加文字纵横排列参数开关 11.图像效果单独处理 12.新版的调用将会更灵活 13.优化水印图片过滤背景色 14.新增和修改了一些函数接口。-ASP.NET 2.53 Thumbnail watermark component source 1. Text edges (text watermark) 2. Picture rotation plus watermark 3. Fixed watermark position rotary control precision 4. New Original Custom deleted 5. Image brightness, contrast, RGB color value adjustments 6. may obtain post-generated image path 7. fix image lossless generation 8. fix a few before the Bug 9. add watermark text shadow cut open 10. watermark text vertical-shaped arrangement of characters to increase the vertical and horizontal arrangement of the text parameter switch 11. image quality alone 12. new version of the call will be more flexible 13. Optimization of the background color of the watermark image filtering 14. new and revised a number of functions interface. Platform: |
Size: 1180672 |
Author:gaoyifong |
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Description: 利用VB.net对autocad进行二次开发,实现通过零件的bmp图像生成三维实体,实现三维反求!-Using VB.net for autocad secondary develop, implement parts of the bmp image generation by three-dimensional entity, to achieve three-dimensional reverse! Platform: |
Size: 609280 |
Author:张鹏程 |
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Description: 1.栏目的添加,管理,并且支持无限级栏目分类,每个栏目可设置独立的默认模板
2.文档的发布管理,支持自由设置静态,动态浏览模式,自由设置头条,图文,幻灯等属性,支持评论的控制
3.自由切换图片水印(文字和图片水印),控制图片上传类型,控制图片大小
4.支持作者来源的集中管理
5.支持发布站内公告,公告页可自由设置模板(需要懂点ASP.NET知识)
6.用户登陆日志管理
7.友情链接管理功能
8.支持设置默认模板风格
9.方便的用户管理与其权限控制功能
10.支持全站静态生成,可通过栏目,文档发布时自由设置静态与否
11.前台界面全部采用标签调用数据的形式,让用户可自由更换自己的模板
12.会员中心功能
13.支持匿名投稿功能,可在后台设置是否开启该功能
14.支持AJAX评论功能
15.支持模板管理功能，支持在线编辑模板-Add 1 columns, management, and support the unlimited-class section classification, each column can be the default template is provided with independent
Release management 2 document, support for the free set static, dynamic browsing mode, free to set the headlines, pictures, slides and other property, control support comment
3 free switch picture watermark ( text and image watermark ), control pictures upload type, control the size of the picture
Centralized management of the 4 sources of support
5 supported the release announcement, announcement pages are free to set the template ( need to know some ASP.NET knowledge )
6 user login log management
7 links management function
8 set the default template style
9 convenient user management and access control function
10 support the total static generation, through the column, document release free set static or not
The 11 front interface using label call data form, so that the user can freely change their own templates
Function Platform: |
Size: 2404352 |
Author:sdgasdi |
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Description: 在Web程序中自动生成图片的标记或印章，可在上传时批量印章，可在图片的任意位置印章，可印透明的图片，应用于图片网站、新闻网站等与图片处理密切相关的系统，也可应用于OA系统的文书印章，采用Microsoft公司C#.NET(GDI+)技术开发-Mark or seal, automatic generation of Web applications pictures can upload bulk seal anywhere seal in the picture can be printed on a transparent picture, closely associated with the image processing system, applied to the photo site, news site also seal of instruments that can be applied to the OA system, using Microsoft C#. NET (GDI+) technology development Platform: |
Size: 12288 |
Author:华爽 |
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Description: 采用C# VS2010 .net framework v4.0 开发的小工具
用途：可以将rar格式文件放入到图片中，操作简单方便，生成后的图片可以浏览，并且将后缀名
修改之后可以解压出原来的rar文件的内容！ 经测试：可以嵌入到html页面中。
本质的操作：就是向图片文件的字节流末尾追加rar文件的字节流（理论上可以追加任意文件，但
是涉及文件头，文件识别问题，有些程序不能识别）
-Using C# VS2010. Gadgets net framework v4.0 development
Purpose: rar format file can be put into the picture, easy to operate, you can browse pictures after generation, and the suffix
After modifying the original content can extract the rar file! Tested: can be embedded into html pages.
The nature of the operation: that is appended to the end of the byte stream rar file byte stream image files (theoretically can append any files, but
Is involved in the file header, file identification problem, some programs do not recognize) Platform: |
Size: 212992 |
Author: |
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Description: iwms是国内最早的asp.net新闻系统之一，主要功能有：网页自动采集、防采集、静态生成、图片/文件防盗链、图片/脚本gzip压缩、内置讨论区/广告投放功能、会员付款阅读内容-iwms is one of the earliest asp.net news system, the main features are: Web page automatic acquisition, anti-collecting, static generation, image/file anti-hotlinking images/script gzip compression, built-forum/advertising functions, membership payments reading content translation Platform: |
Size: 1974272 |
Author:徐元 |
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Description: iwms是国内最早的asp.net新闻系统之一，主要功能有：网页自动采集、防采集、静态生成、图片/文件防盗链、图片/脚本gzip压缩、内置讨论区/广告投放功能、会员付款阅读内容.-iwms is one of the earliest asp.net news system, the main features are: Web page automatic acquisition, anti-acquisition, static generation, image/file anti-hotlinking images/script gzip compression, built-forum/advertising functions, membership payments reading content Platform: |
Size: 1859584 |
Author:赖广树 |
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Description: 网上有很多二维码生成程序，不过都是生成标准的二维码，最近的一个项目要求生成中间是小图标（LOGO）的二维码，后经不断查询资料，终于做出来了，主要核心是使用了国外的一个开源类库——QRCODE，生成确实方便，希望能为大家提供一份参考。
使用注意：在生成带lOGO的二维时：
1、请将需要显示在二维码中的LOGO图像命名为emwlogo.gif，格式：gif，放在与ewmlogo.php文件同级的目录下
2、请在文本框中输入正确的网址，若网址格式不对，则生成的二维码无效。
在线演示地址：http://www.codesc.net/source/3781.shtml-There are many online two-dimensional code generation process, but are generating a standard two-dimensional code, the latest generation in the middle of a project requires a small icon (LOGO) two-dimensional code, after the continuous query, finally did come out, the main coreIt is the use of an open-source library QRCODE abroad, generating really convenient, hoping to provide a reference for everyone.
Caution: When you generate a two-dimensional band lOGO:
1, set to be displayed in the two-dimensional code in the LOGO image named emwlogo.gif, formats: gif, placed in the same level with ewmlogo.php file directory
2, enter the correct URL in the text box, if the URL format is wrong, the resulting two-dimensional code is invalid. Platform: |
Size: 25600 |
Author:jianghuluanke |
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Description: 绿苹果图片外链网是提供图片外链程序
可以在任意支持php的系统上运行,不需要数据库
谷歌广告一键设置 不需要麻烦的一个一个改代码
支持多语言,多文件上传,支持远程图片上传,自动生成缩略图,原图外部链接,后台可以设置自动删除,流量控制,图片权限,图片格式,-Green apple picture chain net is to provide a picture chain program
Can run on any system that support PHP, no
A set of Google advertising does not require a change of a trouble code
Support multi language, multi file upload support remote upload pictures, automatic thumbnail generation and original external links, the background can be set to automatically remove, flow control, image access, picture format, Platform: |
Size: 4135936 |
Author:阳光 |
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Description: 这是一个DOME，直接下载使用，仅实现二维码生成功能，如要增加二维码打印功能可以参考以下代码，如要增加其他功能请自行开发。
Image image = qrCodeEncoder.Encode(strData);
Bitmap printPicture = new Bitmap(image.Width+20, image.Height + 40);
Graphics g = Graphics.FromImage(printPicture);
Rectangle destRect = new Rectangle(10, 10, image.Width, image.Height);
g.DrawImage(image, destRect, 0, 0, image.Width, image.Height, GraphicsUnit.Pixel);
RectangleF layoutRectangle = new RectangleF(0, image.Height + 20, image.Width, 30);
g.DrawString(strCode, font, brush, layoutRectangle);
string filepath = System.Web.HttpContext.Current.Server.MapPath(@"~\attachment")+ "1.png";
System.IO.FileStream fs = new System.IO.FileStream(filepath, System.IO.FileMode.OpenOrCreate,System.IO.FileAccess.Write);
printPicture.Save(fs, System.Drawing.Imaging.ImageFormat.Png);
fs.Close();printPicture.Dispose();(This is a DOME, which is directly downloaded. It only realizes the generation of two-dimensional code. If we want to increase the two-dimensional code printing function, we can refer to the following code, if you want to add other functions, please develop it yourself.) Platform: |
Size: 2215936 |
Author:cbingqin
|
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Description: 图片验证码生成关键代码,可以快速生成图片验证码,并能自定义噪点数量(Image authentication code generation key code, can quickly generate image verification code, and can customize the number of noise) Platform: |
Size: 1024 |
Author:qaazzsd |
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