Capturing low res images with iPhone

[Island Jim]

I am building an application that needs to capture and process a stream of images from the iPhone. I do not want the full resolution available from the camera rather I need something between 320x240 and 640x480 or so. The goal is to be able to capture the images and process them as quickly as possible. I would like to be able to handle 10 or more frames per second. The images are not saved following the processing rather we are looking for certain elements and keep searching until we find them and only then stop.

What is the best way to do this? Is there a way to capture the images going to the viewfinder rather than off the sensor? Also, as the first step in the processing we need to get them to grayscale, any shortcuts to do that?

Thanks

[dany_dev]

maybe a good way can be to take in a loop screens when you show UIImagePickerController and process this images (that have a resolution of the screen)