ImageResizer动态输出图像宽高

在nuget中执行安装命令：

PM> Install-Package ImageResizer.WebConfig
PM> Install-Package ImageResizer.Plugins.DiskCache
PM> Install-Package ImageResizer.Plugins.PrettyGifs

在Application_Start中添加如下代码

new ImageResizer.Plugins.PrettyGifs.PrettyGifs().Install(ImageResizer.Configuration.Config.Current);
new ImageResizer.Plugins.DiskCache.DiskCache().Install(ImageResizer.Configuration.Config.Current);

英文文档：https://imageresizing.net/docs/v4

相关的web.config配置

<?xml version="1.0" encoding="utf-8"?>
<configuration>
 <configSections>
 <section name="resizer" type="ImageResizer.ResizerSection" requirePermission="false" />
 </configSections>
 <system.web>
 <compilation debug="true" targetFramework="4.5" />
 <httpRuntime targetFramework="4.5" />
 <httpModules>
 <add name="ImageResizingModule" type="ImageResizer.InterceptModule" />
 </httpModules>
 </system.web>
 <system.webServer>
 <validation validateIntegratedModeConfiguration="false" />
 <modules>
 <add name="ImageResizingModule" type="ImageResizer.InterceptModule" />
 </modules>
 </system.webServer>
 <resizer>
 <plugins>
 <add name="DiskCache" />
 <add name="PrettyGifs" />
 </plugins>
 </resizer>
</configuration>

mayb