How to achieve such kind of effect using CIImage

Question

I want to achieve following kind of effects in CIImage [iPhone] :

• Somewhat looks cartoonish
• Muscles showing dark
• And other adjustments

Answer 1

I suggest using a sharp or unsharp effect, and maybe a bit of posterize. Really though you should look this up yourself. Here's a good link... https://developer.apple.com/library/mac/documentation/graphicsimaging/reference/CoreImageFilterReference/Reference/reference.html

Also, i recommend using GPUImage... https://github.com/BradLarson/GPUImage

Hope this helps!!