Use TrueHDR to create beautiful HDR (high dynamic range) photos on your iPhone 4, iPhone 3GS, and iPod Touch. With TrueHDR, you can get the best of both worlds - capturing the details of bright and dark areas and then merging them into a single photo. True HDR allows you to take HDR pictures directly with your iPhone or iPod Touch camera, or to create HDR pictures from images in your photo library that were previously taken with a handheld camera with variable exposure settings. To create HDR pictures, you need to start with at least two photos, each capturing a different range of brightness in a scene. The challenges lie in merging those pictures and keeping the parts that you care about in each. True HDR automatically match the details of the two photos and aligns them. The app then figure out the best parts of each image, and selectively adjust and merge them to look good together. The result is a photo that combines the best of both original images into one realistic-looking picture that is much closer to what your eyes originally saw.