After giving some more thought to this, it turns out the delegate method already exists!

Here is a code sample that uses valueChangeForRowAtIndexPath to get the selected image:
- (void)tableViewModel:(SCTableViewModel *)tableViewModel
valueChangedForRowAtIndexPath:(NSIndexPath *)indexPath
{
SCTableViewCell *cell = [tableViewModel cellAtIndexPath:indexPath];
if([cell isKindOfClass:[SCImagePickerCell class]])
{
UIImage *selectedImage = ((SCImagePickerCell *)cell).selectedImage;
if(selectedImage)
{
// do your stuff here
}
}
}
Hope this helps!