https://github.com/gdawg/uiimage-dsp

IOS UIImage processing functions using the vDSP/Accellerate framework for speed.
https://github.com/gdawg/uiimage-dsp

Last synced: about 1 month ago
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IOS UIImage processing functions using the vDSP/Accellerate framework for speed.

• Host: GitHub
• URL: https://github.com/gdawg/uiimage-dsp
• Owner: gdawg
• License: apache-2.0
• Created: 2011-05-18T14:23:35.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2013-01-30T00:52:18.000Z (over 11 years ago)
• Last Synced: 2024-04-24T19:01:34.072Z (5 months ago)
• Language: Objective-C
• Homepage: http://mad-dog-software.com
• Size: 468 KB
• Stars: 371
• Watchers: 13
• Forks: 41
• Open Issues: 4
• Metadata Files:
  • Readme: README
  • License: LICENSE

Awesome Lists containing this project

• awesome-ios - UIImage DSP - iOS UIImage processing functions using the vDSP/Accelerate framework for speed. (Media / Image)
• awesome-ios-star - UIImage DSP - iOS UIImage processing functions using the vDSP/Accelerate framework for speed. (Media / Image)

README

        
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!