Hi everyone, I must write an application for iPhone to scan documents. The problem is, I have no idea about image processing. When I make a photo of document, than first my application should detect borders of that document and draw that borders and user can crop the image to that border and also correct the perspective of document. After that the application should enhance the image quality. Unofrtunately I don't which algorithms to use. I tried make enhanement of image with adaptive threshold algorithm, but for full resoultion image is too slow and when I scale image than the quality is not good (text is blured).
Has anyone idea how can I that do?
Thanks