September 7, 2009

The North Carolina Transportation Museum in Spencer, NC is a great place to spend the afternoon, whether you have kids, a love for trains, or if, like me, you just like taking pictures. There is a lot of history at the museum from trains, to old cars, to old buildings. As a photographer I really appreciate all the different textures and shapes at the museum. They make for some interesting images.

The image I’ve chosen for today is perhaps not the most spectacular of images from my archives. I’ve chosen it to demonstrate a type of photography which I enjoy and that I will most likely refer to quite a bit in my blogging. That is high dynamic range (HDR) photography. From Wikipedia, “HDR is a set of techniques that allow a greater dynamic range of luminances between light and dark areas of a scene than normal digital imaging techniques or photographic prints. This wider dynamic range allows HDR images to more accurately represent the wide range of intensity levels found in real scenes ranging from direct sunlight to faint starlight.”  Got it? I thought so.

The first image below is an HDR image. The three images below it are the ones that were combined to produce the finished image. The first of the three images is what my camera interpreted to be a properly exposed image. Not too bad, but a lot of the detail is lost in both the shadows and the highlights. The second of the three lower images is underexposed. This brings out the detail in the highlights of the image. This is most visible in windows in this image. Had there been a few clouds in the sky the day I took this they would have become more visible in this image. The third image is over exposed bringing out the detail in the shadows, most notably the ceiling. When the three images are combined the final image more closely depicts the range of detail that you would see if you were looking at the subject.

I hope that you enjoy the view. Comments, as always, are welcome.

-jim

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