Image Resizer - the IIS/ASP.NET module for everyone

Resize, watermark, crop, rotate and filter from the image URL.
Usable from javascript, css, html, php, ruby, python, asp, asp.net, anything!

This plugin (AdvancedFilters plugin) is part of the Design bundle

Where is the plugins section?

The <plugins> section is located in Web.config, and is nested inside the <resizer> element, which is nested inside <configuration>. For examples, see this sample Web.config file.

What is NuGet?

NuGet is a better way to manage your project's libraries, and is fully supported by the ImageResizer.

Cloud Bundle

Free bundle

Performance Bundle

Extras Bundle

Design bundle

Don't see the feature or plugin you're looking for? I do custom plugin development at 80% off my regular rates.

AdvancedFilters plugin

Apply advanced effects to your images. Requires Full Trust.

The plugin currently applies effects to the the image along with any background color, padding, or drop shadow that may be present. Future versions may simply apply the effect to the image, not the surrounding area. Note: does not affect borders or watermarks.

Installation

Either run Install-Package ImageResizer.Plugins.AdvancedFilters in the NuGet package manager, or:

  1. Add ImageResizer.Plugins.AdvancedFilters.dll to your project. Make sure AForge.dll, AForge.Math.dll, and AForge.Imaging.dll are copied also, although they do not need to be referenced directly.
  2. Add <add name="AdvancedFilters" /> inside <plugins></plugins> in Web.config.

Usage

If you want more effects, post your idea and vote for it.

  • Gaussian blur with adjustable radius: &blur=radius
  • Gaussian sharpen with adjustable radius: &sharpen=radius

Alpha effects (may change or disappear without notice)

Please note the following effects are only preset for evaluation. If you like one and find a practical use for it, please let me know! Otherwise it might disappear to reduce the code surface area.

Also, note the order in which effects are applied WILL CHANGE in future releases Don't combine them if you want repeatable results.

The names for these will probably also change in future releases

Contrast, saturation, and brightness adjustment

Hint: Start with values between -0.1 and 0.1. Values have a big effect.

  • &a.contrast=-1..1
  • &a.saturation=-1..1
  • &a.brightness=-1..1

Automatic histogram adjustment (Good for daylight photos)

Adjusts contrast, saturation, and brightness with curves based on the histogram. Good for adjusting slightly foggy or dark daytime photos.

  • &a.equalize=true

Sepia

Sepia effect, slightly different from the one in SimpleFilters... going to evaluate which is best.

  • &a.sepia=true

Oil Painting effect

Try 1 for impressionist, 100 for modern art ;)

  • &a.oilpainting=1..100

Noise removal

Not a blur effect - designed to remove color noise, 'pepper noise'. Very conservative, doesn't affect edges.

  • &a.removenoise=1-100

Sobel energy filter

Useful only for debugging why WhitespaceTrimmer isn't working on an image.

  • &a.sobel=true

Note - you can also threshold the sobel filter into black and white with &a.threshold=0-255

Canny Edge Detector

Displays edges as lines. Aggressive.

  • &a.canny=true