nytimes.com —
Like many amateur photographers, Joe Dejesus posts his photos online and compares them to the work of others on the photo-sharing site Flickr. At some point last year, a number of landscape photos caught his eye with their vibrant tones and colors.
Their secret was a software technology known as H.D.R., for high dynamic range photography. HDR is one of many digital darkroom techniques catching the fancy of amateur photographers.
