Is there a way to manipulate UIImage in iPhone SDK

Question

Is there a way to apply some functions like:brightness,contrast,sharpness,hue,saturation,exposure to uiimages. For example I have a UIImageview and inside that i have a uiimage. I want to manipulate its brightness or contrast or sharpness with a help of UISlider

Answer 1

看一下示例应用程序GLImageProcessing ，但是它使用openGL进行图像处理，但是它确实非常快。