High Dynamic Range photography
Friday January 7 2010
There are many good software packages that are user friendly. compared to CS5.
Dynamic Photo-HDR is a next generation High Dynamic Range Photo Software with Pin-Warping, Anti-Ghosting, Fusion and Color Matching.
“Powerful alignment and deghosting tools for high-dynamic-range generation, six tone mappers, plus lots of postproduction adjustments make MediaChance’s Dynamic Photo HDR a real winner for HDR imaging.”
Much less expensive than CS5 and the pictures that follow were all using this software, ENJOY
What is HDR Photography?
High Dynamic Range photography or HDR photography is an advanced set of photography techniques that play on image’s dynamic range in exposures. HDR Photography allows photographers to capture a greater range of tonal detail than any camera could capture thru a single photo.
While many imaging experts regard HDR photography as the future of digital photography, the discipline has long been in existence.
HDR photography is present in many pictures taken through modern day digital cameras. The truth is, if you are a real photography enthusiast then there is a great chance that you have taken at least one photo exemplifying HDR photography.
The real functions or even executions of HDR photography may be debatable. But no matter which website or source you consult they will always say it is a technique that employs the great use of exposure range to get distinct values between light and dark areas of the image. Its real intention is to create an image that accurately characterizes the intensity levels found in natural scenes. If you ever wondered why the picture you took was different from the scenery you actually saw, then maybe it’s time for you to learn HDR photography.
HDR Photography is the technique used to capture and represent the full (as possible) DR found in a scene with high perceptual accuracy and precision. To remember things better, think of the 3S: sunlight, shadows and subjects. These are the things that make an ordinary picture an HDR image.
The history of HDR Photography
While the technique is more commonly used now to create astounding images of art, fashion and landscape photography, HDR photography’s humble beginning is ironically designed to capture a rather fearing, shocking and destructive image – nuclear explosion.
Charles Wyckoff (the same guy who inspired Computational Photography) developed HDR photography in 1930s to 1940s. He is genius who took the 1940s Life magazine cover of nuclear explosions – an image that would later change the world. Of course the technique didn’t have the acronym HDR before, but the principles remained the same.
A deeper and perhaps more scientific understanding of HDR photography and imaging was first introduced in 1993. This was done by playing on two established photography elements: tone mapping and bracketing. A complex mathematical theory regarding differently exposed images of the same subject matter was then released two years after. Paul Debevec, a computer graphic researcher, applied this theory and combined several differently exposed images to produce a single HDR image was accomplished. Talk about putting a lot of science and even math to discipline.
Today, things are a lot easier. Thanks to the wide selection of portable and digital cameras as well as easy-to-use software, HDR is no longer limited to people studying nuclear explosion and computer graphics technology. But the technology on image capture, storage, editing and printing devices still has some limitations. And since each of these elements affect the DR of image; we need to study them if we want to get an HDR image with superb quality.
Doug Worrall Photographer