Leading Line

Leading Line

This is int he camp Coorimungle. Nice? Of course! Well, may not be the taste for those who are looking for "real" subject. This shot is made from 3 shots taken over, under and normal exposure. What this means is that one of the picture is taken very very bright and one very very dark and another normal. These three pictures are then combined using High Dynamic Range (HDR) rendering program to create one HDR image.



HDR allows a far greater dynamic range of exposures (i.e a large difference between light and dark areas) than normal digital imaging techniques. The intention of HDR is to accurately represent the wide range of intensity levels found in real scenes ranging from direct sunlight to the deepest shadows.

One problem with HDR has always been in viewing the images. CRTs, LCDs, prints, and other methods of displaying images only have a limited dynamic range. Thus various methods of "converting" HDR images into a viewable format have been developed, generally called "tone mapping".

Early methods of tone mapping were simple. They simply showed a "window" of the entire dynamic range, clipping to set minimum and maximum values. However, more recent methods have attempted to show more of the dynamic range. The more complex methods tap into research on how the human eye and visual cortex perceive a scene, trying to show the whole dynamic range while retaining realistic colour and contrast.

(courtesy wikipedia.com)