It’s hard to believe that you can get different results from the same hardware—the same smartphone camera—just seconds apart. The first photo was taken with the iPhone 5S’s built-in camera app, which employs some impressive software techniques to improve most photos. In this case, a low-light scene forced an ISO sensitivity of 1000.
The second photo was taken with Cortex Camera, which takes a series of images over 2 seconds or so (you don’t have to keep your hands perfectly still, but still-as-possible helps). These are then combined for far less noise, more accurate colors, and higher resolution (12mp on the iPhone 5/5S, which normally take 8mp images). The default Camera.app also combines up to four captures for better photos, but is optimized to work for all situations. For any scene without moving subjects and where you have the luxury of time, Cortex delivers better results.
The shots above are 100% crops from the same scene. Note that the Cortex Camera version is both larger and more detailed. It has more potential for processing, and beats a fair few prosumer point and shoot cameras at the pixel level.
The first app to do this “supersampling” was Occipital’s ClearCam, which I used to swear by. However, like their other app 360 Panorama, ClearCam hasn’t received any updates in the wake of iOS 7, and appears to have been abandoned as the company pushes their new Kickstarter-backed project, the Structure Sensor. At this time, ClearCam makes you wait longer and has a cumbersome alignment and enhancement process. Cortex Camera just takes the picture and saves it all in one step. It’s a damn shame, because both Occipital apps were among the first and best of their kind, enabling users to do things with their iPhones that seemingly defied the capabilities of the hardware. They clearly have a knack for clever imaging technology; I just hope they take a longer view of supporting their products some day.
If you’re in the market for a new app to take and share those 360-degree panoramas, Sphere (formerly Tour Wrist) does a good job and is free. Bubbli is also promising, but captures video instead of photos to stitch a scene together, which means you have to pan slowly to get an even exposure. If you’ve got the cash and a love of new gadgets (mustnotbuymustnotbuy) Ricoh’s new Theta camera does the trick in a single click. It’s the first consumer-ready spherical capture camera and looks like a presentation remote. Simply hold it above your head and hit the button, and it takes in the entire scene. What’s more, the $400 device has built-in wifi and beams photos over to your iPhone for instant sharing. It’s not hard to imagine this feature on an iPhone a decade from now.