High Dynamic Range (HDR) combines multiple images, of the same subject, into one to create an image that simulates what the human eye sees.

A Single Image HDR takes enhanced images from a single image and combines them for a HDR image.

I took pictures at a car show Saturday. It was overcast which turned the sky into a giant softbox. The image below of this old Hudson was taken with my iPhone. It is not a bad image, but it is lacking some depth.

I loaded the image info an iPhone app called Dynamic Light, and it created the HDR image below. This is still a great image, but HDR can give a cartoonish look to an image.

Another application I use is called Pro HDR. I combined the image above with the original one. By adjusting the levels, I created a base image (below) that will be darker than the HDR image.

Dark images have details light images do not and via versa. With Pro HDR, I combined the HDR image with the base image to add a little more realistic look to the image.

There may not be a whole lot of change, but all I wanted to do is add clarity and realism to the image.