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!