Source Link:https://github.com/NZN/UIImage-Helpers

#UIImage-Helpers

Create a blurred images, take a screenshot, make a image with color...

Requirements

UIImage-Helpers works on iOS 5.0+ version and is compatible with ARC projects. It depends on the following Apple frameworks, which should already be included with most Xcode templates:

• Accelerate.framework
• Foundation.framework
• QuartzCore.framework

You will need LLVM 3.0 or later in order to build UIImage-Helpers.

Adding UIImage-Helpers to your project

Cocoapods

CocoaPods is the recommended way to add UIImage-Helpers to your project.

• Add a pod entry for UIImage-Helpers to your Podfile:

pod 'UIImage-Helpers'

• Install the pod(s) by running:

pod install

Source files

Alternatively you can directly add source files to your project.

1. Download the latest code version or add the repository as a git submodule to your git-tracked project.
2. Open your project in Xcode, then drag and drop all files at UIImage-Helpers folder onto your project (use the "Product Navigator view"). Make sure to select Copy items when asked if you extracted the code archive outside of your project.

Usage

• Make a blurred image with another image

#import "UIImage+Blur.h"
...

// jpeg quality image data
float quality = .00001f;

// intensity of blurred
float blurred = .5f;
    
NSData *imageData = UIImageJPEGRepresentation([self.imageViewNormal image], quality);
UIImage *blurredImage = [[UIImage imageWithData:imageData] blurredImage:blurred];
self.imageViewBlurred.image = blurredImage;

• Take a screenshot

#import "UIImage+Screenshot.h"
...

UIImage *image = [UIImage screenshot];
self.imageView.image = image;

• Generate a image with color

#import "UIImage+ImageWithColor.h"
...
UIColor *purpleColor = [UIColor colorWithRed:.927f green:.264f blue:.03f alpha:1];
UIImage *image = [UIImage imageWithColor:purpleColor];
    
[self.navigationBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];

License

This code is distributed under the terms and conditions of the MIT license.

Change-log

A brief summary of each UIImage-Helpers release can be found on the wiki.

To-do Items

• Category for crop images