Thoughts on Rails

Riding the Train of Thought

How Much Can You Juice a JPEG Image?

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Back in 2006, I had this great idea of photographing in JPEG on a camera that supported RAW. I had only two 1GB memory cards at that time and this trip was planned for three to four days. Knowing my appetite for shutter releases, I went with the lossy data format. A foolish idea in retrospect. Nevertheless, I got some interesting photographs, some nice and as usual, a bunch of throwaways.

 Recently, I’ve started revisiting my archives to fish out some decent photos that could use tonemapping, a process used with high dynamic range images to bring out the details in them. Here’s an example of an image with overexposed road and underexposed trees and hills. And the next photo is after using tonemapping to extract the details, add contrast and selectively choosing parts from layers of the original and tonemapped photograph to get the best of both worlds, while still letting the image look more or less natural.


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Written by hiway

July 23, 2009 at 3:23 am

Posted in Uncategorized

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