Thinking of using Photo editing app

[ilmman]

Hi, I thinking of developing a photo editing app. I have drawn up the plans and and got resources and so faar in development i see that i am having memory issues. Im using the camera and photo library to obtain images and also I have other images installed locally to the device. The images installed locally are huge and I can display up to like 100 at once. Is there a way to reduce this memory or should I start from scrach and use something like cocos2d to render my images in the app or something (please suggest some if u got any ideas). Thanks