问题
Is there any filters available in ios to convert a image to cartoonistic image like exactly in the above picture?
回答1:
For a much faster solution than ImageMagick, you could use the GPUImageToonFilter from my GPUImage framework:
It combines Sobel edge detection with posterization of the image to give a good cartoon-like feel. As implemented in this framework, it's fast enough to run on realtime video from the iPhone's camera, and is probably at least an order of magnitude faster than something similar in ImageMagick. My framework's also a little easier to integrate with an iOS project than ImageMagick.
If you want more of an abstract look to the image, the GPUImageKuwaharaFilter converts images into an oil painting style, as I show in this answer.
回答2:
Try to use imagemagick for iOS http://www.imagemagick.org/download/iOS/ Of course you need some serval hours how to use imagemagick for iOS. But then you should also look at: http://www.fmwconcepts.com/imagemagick/cartoon/index.php
and maybe also on: http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=11140&start=0&st=0&sk=t&sd=a
回答3:
This Core Image filter section in the iOS dev library, possibly combined with the script referenced by Jonas and a little luck, might get you where you're going. Not sure, having never used either of these technologies.
来源：https://stackoverflow.com/questions/10042857/to-convert-image-to-cartoon-in-ios