Cocos2d - apply OpenGL effect to CCSprite

Apple's Oplengl-es GLImageProcessing example can be used to apply image adjustments: brightness, saturation, contrast, hue and sharpness. [login to view URL] In a project based on cocos2d-iphone, how can GLImageProcessing effects be used on a CCSprite? Basically I need to pass a sprite to GLImageProcessing. I just need some example code of using GLImageProcessing in cocos2d so I can add it to my app. Will pay about $50.