Saturday, March 14, 2009

Exposure Fusion: What is it? How does it Compare to HDR? How Do I Do It?

From Digital Photography School

http://digital-photography-school.com/exposure-fusion-what-is-it-how-does-it-compare-to-hdr-how-do-i-do-it

Exposure Fusion: What is it? How does it Compare to HDR? How Do I Do It?

Today Mark Evans from Smash and Peas Photography Blog shares an explanation and starting points with Exposure Fusion.

Lets set things straight from the start, Exposure Fusion is not a kind of HDR. Exposure Fusion is a fairly new concept that is the process of creating a low dynamic range (LDR) image from a series of bracketed exposures.

In short, EF takes the best bits from each image in the sequence and seamlessly combines them to create a final ‘Fused’ image. Or more technically, the fusing process assigns weights to the pixels of each image in the sequence according to luminosity, saturation and contrast, then depending on these weights includes or excludes them from the final image. And because Exposure Fusion relies on these qualities, no exif data is required, and indeed, if you wanted to, you could include an image with flash to bring darker areas to life.

Using this process actually has a few advantages over HDR.

Read the whole article here: http://digital-photography-school.com/exposure-fusion-what-is-it-how-does-it-compare-to-hdr-how-do-i-do-it

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