Single photo processed to HDR vs multiple photo bracketed in camera the processed?

11 years 8 months ago #242896 by Weston
I've been noticing more HDR threads and discussions popping up. Between software companies like Topaz and Nik Software who have software to transform a single image to HDR, then you have software like Photomatix that process multiple bracketed shots into a HDR image.

So what I'm wondering is if there is a quality difference between an image that is processed to HDR from a single photo vs an image that was processed from multiple photos?

I mean there must be some differences, right?


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11 years 8 months ago #243004 by rmeyer7
The idea behind HDR is that your final image contains more dynamic range than a camera is capable of recording in a single image. (Thus the name, High Dynamic Range.)

You can recover a lot of details from shadow and highlight areas and process a photo to have the look that many HDR photos seem to have (overcooked, where it looks more like a special effect than an accurate representation of the scene or subject you photographed), but that doesn't mean you have an HDR photo. You're still working within the boundaries of what the camera was capable of capturing in a single exposure.

But if you have more source photos to work with, at various levels of exposure, you've got more actual dynamic range. And if you use HDR processing the way it should be used -- without the ridiculously cartoonish effects that are common with HDR -- your end result can simply be an accurate representation of what you shot, with the full spectrum of light that your eye was able to see. That's a lot more dynamic range than a single exposure could have contained, and that's why it really qualifies as an HDR image.


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11 years 8 months ago #243007 by John Landolfi

rmeyer7 wrote: The idea behind HDR is that your final image contains more dynamic range than a camera is capable of recording in a single image. (Thus the name, High Dynamic Range.)

You can recover a lot of details from shadow and highlight areas and process a photo to have the look that many HDR photos seem to have (overcooked, where it looks more like a special effect than an accurate representation of the scene or subject you photographed), but that doesn't mean you have an HDR photo. You're still working within the boundaries of what the camera was capable of capturing in a single exposure.

But if you have more source photos to work with, at various levels of exposure, you've got more actual dynamic range. And if you use HDR processing the way it should be used -- without the ridiculously cartoonish effects that are common with HDR -- your end result can simply be an accurate representation of what you shot, with the full spectrum of light that your eye was able to see. That's a lot more dynamic range than a single exposure could have contained, and that's why it really qualifies as an HDR image.


:agree: :goodpost: Clearly stated,. including the qualitative remarks on general HDR vulgarities!:thumbsup:


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11 years 8 months ago #243513 by Jim Photo
+1 :goodpost:


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11 years 8 months ago #243681 by effron
I've done a few of the single exposure blending(HDR) shots, but step one is to shoot and process in Raw.....;)

Why so serious?
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