README

May 18, 2011 ยท View on GitHub

UIImage Image Processing extensions using the vDSP/Accelerate framework.

Fast Image Blur/Sharpen/Emboss/Matrix operations for UIImage.

REQUIRES IOS 4.0 and The Accelerate framework.

I was in desperate need of a fast blur operation for UIImages and the OpenGL solutions I've seen are a little complicated for my needs, these aren't quite as fast but are potentially very powerful and still quite fast relative to hand coding loops.

Usage:

  • Ensure your project is set with a base and deployment target > 4.0
  • Include the Accelerate Framework in your project
  • Copy the UIImage+DSP.h and UIImage+DSP.m classes into your project
  • In any class where you wish to use the functions import UIImage+DSP.h
  • Call the imageByApplying... methods, these return an auto-released UIImage.

blur example: UIImage* src = [UIImage imageNamed:@"image.png"]; UIImage* blurred = [src imageByApplyingGaussianBlur3x3];

Please feel free to send any bugfixes/pull requests on if you've got something good!