Monday, 10 December 2012

HDR Photography

HDR stands for high dynamic range imaging. You can take either one image or a series of images, having a different exposure for each one, combining them, then editing them.

For the history of HDR, the point of it is to use several exposures to fix to a too-extreme range of luminance was pioneered as early as the 1850s by Gustave Le Gray to render seascapes showing both the sky and sea. Le Gray used one negative for the sky, and the another one with a longer exposure for the sea and combined the two into one picture in positive.
For this task you commonly take three pictures of the same object, but different exposure for each one, light, normal and dark, really all matters of the amount of light thats going through the lens at that time. When you're done taking the pictures, you put them on the computer, and a software like photoshop then combines all the pictures to bring the details to the shadows and highlights both.

I took this picture outside. The first one I took it was sunny outside, the last two it wasn't, which is probably why the first one looks better. I used a tutorial to edit my picture as it is. I learned how to merge the pictures into one HDR picture.