Previously, I’d introduced you to iPhone photography, or “iPhoneography.” One of the advantages to shooting with an iPhone, I’d mentioned, is the availability of thousands of inexpensive apps that allow you to “process” and share your images on the go.
While the iPhone’s camera does many things surprisingly well, it is a camera with a fixed shutter speed and an f/2.8 lens. Exposure compensation is performed on the sensor, where the ISO is adjusted. Sometimes, the images shot on an iPhone are a little flat, dark, or may have a gray cast. Fortunately, there’s an app for that! Here are three of the easiest and best “flash fixing” exposure enhancing, Dynamic Range Correction apps currently available.
There are many “flash fix” apps available. Most simply crank up the brightness of your image, leaving it flat and washed out. Good exposure enhancers will use contrast stretching or normalization to to fix up a dark or gray image. The best ones perform apply several algorithms to do their magic.
Perfectly Clear [App Store link] is the exposure enhancer I use most often. One-button image scrubbing — it quickly and easily improves the sharpness, exposure, saturation and contrast. I usually run my images through Perfectly Clear before doing anything else to them. It has two settings and a user adjustable pro pane for fine tuning your image tweaks. The app cranks the sharpness up pretty high by default — I usually pull it down a bit for my photos. The picture above was enhanced by Perfectly Clear in just a few seconds.
Auto Adjust [App Store link] uses “contrast stretching” or normalization to help correct exposure. Its adjustable enhancement produces excellent results on many images that would otherwise be lost due to underexposure as well as automatically correcting the contrast of more properly exposed images. Auto Adjust is also one of my go-to apps.
Trusight Pro [App Store link] is a recent entry into the exposure fix app market. I love the three-level interface of the app. It’s easy enough for a complete novice, yet tucked away in the Pro screen are slider controls for precise control over enhancement. Trusight Pro excels at exposure enhancement. It removes the gray cast of many iPhone images, improves the luminance where needed in the image and corrects color saturation. It does a very good job of fixing darker areas of an image and restoring shadow details.
I use these apps on the go. They are all fast and easy to use. They create a good starting point to work on your images in other apps, or to simply improve the look of your snapshots before uploading to Facebook or Flickr — all from your iPhone!
Next time, we look at ‘Photoshop for the iPhone.’