How to create an image app for iphone?

I was wondering how to go about creating an image app for the iphone. I know how to create an iphone app. I was just wondering what the best way to make an image app is. I want the user to be ab开发者_如何学Cle to import an image, and then the app will add an effect to it like blur it or tint it or warp it. How can I do this? I've been searching forever. Please help.

I encourgae you to look into a few image processing libraries for iOS that are out there. A search on Google will return a few options..

Here's one > http://mobileorchard.com/a-simple-iphone-image-processing-library/

You should also look into the sample code provided by Apple on GLImageProcessing > http://developer.apple.com/library/ios/#samplecode/GLImageProcessing/Introduction/Intro.html

Regarding importing pictures into your app; there are several examples out there on how to do so through the UIIMagePickerController. Here's one > http://maniacdev.com/2010/02/uiimagepickercontroller-using-the-camera/