Well friends, recently I've been experimenting with a form of image post-processing called High Dynamic Range. In a nut shell, you use a pixel pushing tool like Photoshop (in my case cs4) and you combine multiple exposures of the same scene into one dynamic photo.
In its simplest form, one would use their camera's auto bracketing feature, check your trusty-rusty manual for AEB or Auto Exposure Bracketing. You would set the camera to take one image underexposed (dark), one image normal, and one image overexposed (bright). Fire a burst of three photos, and the camera will do the exposure bracketing for you.Then you combine the three images into one image that captures more tonal range (brightness to darkness) than you can ordinarily capture at one time with the camera.
Our cameras can only see so much of a range between full dark and full white at any one time...however, with combining two, three, or more images into one, you can make one image that has detail in the shadows and highlights. This feature can be used very subtly to make a bland photo look more like that beautiful sunset you really saw, or it can be pushed to the max to make everything look like a clown puked up a comic book. And it all has to do with "Light." So this is my submission for December's Assignment.
Here is my example.
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Here you see the 5 original images that were shot hand held using manual exposure bracketing. |
You can see from these photos that the dynamic range is too large for one capture. If I expose for the sky so you can see those cool clouds, then you cant see this VERY character filled house. However, if I expose for the house, the sky will be essentially white...not interesting at all.
However, after moving things around in Photoshop cs4 using the built in "Merge to HDR" feature and then playing around with other settings to adjust everything else I got the following...
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The "clown puked comic book" version. The effect is extreme here, but I was just playing around! |