IPhone: How to get the original photo image with Picker

Question

Hi!
I'm trying to pick and send (via HTTP) the original image taken by the camera, the 1,600 x 1,2000 image that's available in iPhoto after syncing.
As far as I gathered, the UIImage doesn't help me here, since it's scaled down to 640x480, probably to safe memory. But one should supposedly be able to access the underlying CIImage.
Here's what I'm doing right now:
I'm setting up an ImagePickerController in my
- (void)viewDidLoad
imagePickerController = [[UIImagePickerController alloc] init];
imagePickerController.delegate = self;
imagePickerController.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
[self refreshView:self];
and process the picked image with
- (void)imagePickerController:(UIImagePickerController )picker didFinishPickingImage:(UIImage )image editingInfo:(NSDictionary )editingInfo
CGImageRef imgRef = image.CGImage;
CGFloat owidth = CGImageGetWidth(imgRef);
CGFloat oheight = CGImageGetHeight(imgRef);
NSLog(@"Original size = %f %f",owidth,oheight);
NSData imageData = [NSData dataWithData: UIImagePNGRepresentation(image)];//(image, 1.0)
However, I still get the following output:
2008-07-25 11:44:58.543 myApplication[1564:20b] Original size = 640.000000 480.000000
Obviously still scaled down - but there must be a way to access the original.
What am I doing wrong?

Answer 1

Yes, I'm trying on the iPhone, as the camera is unavailable on the simulator.
Here is the code I'm using:
// In my main code, to initialise the picker
UIImagePickerController *picker;
// Check if camera is available
if ( ![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] )
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:@"Can't access camera" message:@"The camera is unavailable!" delegate:nil cancelButtonTitle:nil otherButtonTitles:@"OK", nil ];
[alertView show];
[alertView release];
return;
picker = [[UIImagePickerController alloc] init];
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.delegate = self;
[_myView addSubview:picker.view];
[_myView performSelectorOnMainThread:@selector(setNeedsDisplay) withObject:nil waitUntilDone:NO];
// The delegate methods
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo
NSLog( @"Image dimensions: %fx%f", image.size.width, image.size.height );
// Remove the picker interface and release the picker object.
[picker.view removeFromSuperview];
[picker release];
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
// Remove the picker interface and release the picker object.
[picker.view removeFromSuperview];
[picker release];
}