some HDRI's
May. 24th, 2009 10:17 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
The batch from the tunnel didn't work out due to a lack of bright data (I really did need the tripod after all) but I think I've got the hang of it now with properly exposed photos and the newer software. The photos show some differences due to variations in the settings... I'm still deciding what I want these things to look like.
HDRI = High Dynamic Range Imagery. Take multiple photos of a wide contrast scene, varying the exposure up and down to capture the full range of data available. Using special software, you combine the images, and use tone-mapping to convert the scene-wide contrast into "micro-contrast". This compresses the tonal range a bit, and enables details that would have been lost to come through.
Here's some images I made a couple years back to explain it...
http://www.vaughnsphotoart.com/miscimg/hdr1.jpg (3 exposures)
http://www.vaughnsphotoart.com/miscimg/hdr2.jpg (result)
1.

2.

3.

4.

5.

6.

HDRI = High Dynamic Range Imagery. Take multiple photos of a wide contrast scene, varying the exposure up and down to capture the full range of data available. Using special software, you combine the images, and use tone-mapping to convert the scene-wide contrast into "micro-contrast". This compresses the tonal range a bit, and enables details that would have been lost to come through.
Here's some images I made a couple years back to explain it...
http://www.vaughnsphotoart.com/miscimg/hdr1.jpg (3 exposures)
http://www.vaughnsphotoart.com/miscimg/hdr2.jpg (result)
1.

2.

3.

4.

5.

6.

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on 2009-05-25 02:47 am (UTC)no subject
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on 2009-05-25 03:18 am (UTC)no subject
on 2009-05-25 02:41 pm (UTC)no subject
on 2009-05-25 05:13 pm (UTC)no subject
on 2009-05-25 04:37 am (UTC)no subject
on 2009-05-27 03:18 pm (UTC)Wish you lived closer, I'd love to go out shooting with you.
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on 2009-05-25 06:20 am (UTC)no subject
on 2009-05-27 03:18 pm (UTC)no subject
on 2009-05-25 01:54 pm (UTC)no subject
on 2009-05-27 03:18 pm (UTC)no subject
on 2009-05-25 04:18 pm (UTC)no subject
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on 2009-05-25 04:31 pm (UTC)no subject
on 2009-05-27 03:24 pm (UTC)no subject
on 2009-05-27 06:50 pm (UTC)It's an amazing process. What software do you use to layer the tonal ranges?
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on 2009-05-27 06:53 pm (UTC)I use Photomatix.
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on 2009-05-27 07:03 pm (UTC)no subject
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on 2009-05-27 07:20 pm (UTC)no subject
on 2009-05-27 07:23 pm (UTC)no subject
on 2009-05-27 07:33 pm (UTC)no subject
on 2009-05-25 07:35 pm (UTC)no subject
on 2009-05-27 12:47 am (UTC)no subject
on 2009-05-27 02:17 am (UTC)no subject
on 2009-05-27 12:14 pm (UTC)Your best bet would be to try it out using the middle image of the bracket that you took for one of these images (e.g. the third one) and see what you think. The effect will be less surreal, definitely (and I think these look great with the HTD/surreal treatment). Maybe one of the nature ones would be a better example, like the Iris in this post. If you'd like me to try to S/H one for you so you can compare, feel free to email me an original image at natalief AT livejournal DOT com and I will see what I can do!
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on 2009-05-27 03:28 pm (UTC)I'm curious what you are doing though, so I'll find something to send you. Any particular subject matter I should look for?
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on 2009-05-28 07:36 pm (UTC)no subject
on 2009-05-28 08:50 pm (UTC)no subject
on 2009-06-18 06:23 am (UTC)