High Dynamic Range

Dooginfif20

Here is one of my attempts with the trial version. How can I reduce some of the noise out of the picture?

Zeus1

Here is one of my attempts with the trial version. How can I reduce some of the noise out of the picture?

1. Take enough pictures in Your bracketed series, especially long exposures. In order to prevent noise build-up, You need a good exposition of the darker regions, i.e. long exposures. Look at the histogram of the series: at least one of the shots should have a histogram leaning completely to the left with a tail ending somewhere in the middle.

If this gives insufficient results, try one of the following (in decreasing order of effect):

2. Run denoising software on all the pics before combining them into an HDRI.
3. Tonemap the HDRI with conventional (or life-like settings). Photomatix has a lot of sliders inviting You, the user, to come up with "expressive" results. But by extreme tonemapping, You augment noise. Therefore, low strenght, high light smooting, low luminosity, low microcontrast, high microsmoothing.
4. Denoise the resulting tonemapped image.

dlplumer

Zeus1 wrote:

1. Take enough pictures in Your bracketed series, especially long exposures. In order to prevent noise build-up, You need a good exposition of the darker regions, i.e. long exposures. Look at the histogram of the series: at least one of the shots should have a histogram leaning completely to the left with a tail ending somewhere in the middle.

If this gives insufficient results, try one of the following (in decreasing order of effect):

2. Run denoising software on all the pics before combining them into an HDRI.
3. Tonemap the HDRI with conventional (or life-like settings). Photomatix has a lot of sliders inviting You, the user, to come up with "expressive" results. But by extreme tonemapping, You augment noise. Therefore, low strenght, high light smooting, low luminosity, low microcontrast, high microsmoothing.
4. Denoise the resulting tonemapped image.

Excellent recipe Zeus:

A couple I shot yesterday:

Dooginfif20

I tried what you said and used CS3 instead of Photomatrix. Let me know what you think!

dlplumer

Photomatix specifically recommends that users use a raw converter (PS, Aperture, etc.) other than photomatix before tone mapping since the photomatix raw converter is not as good.

Your shot looks good though.

Kyle D

anonymouscuban wrote:

Izzy... these shots are pretty awesome. I agree, some go over board on the HDR from what I have seen on the Net.

Did you use Photomatix or CS3 for these shots.

BTW, I picked this book up a few weeks ago and it does a great job of explaining HDR and workflow in Photomatix.

Complete Guide to High Dynamic Range Digital Photography

I just went and ordered this book. Hopefully it's good! I can't wait to start playing more with hdr and actually having my images look like I want them too.

Troy Raymond

I've been trying some HDR also, I use Dynamic Photo HDR. Some of them are color matched and filtered within the hdr program.





A little dreamy look.



A friend...



Troy

dlplumer

I like those Troy

Troy Raymond

Here is a really over processed image. I ran it through Dynamic HDR, then took the new hdr image and ran it through as a 'single image' hdr a 2nd and 3rd time until the look desired was achieved.



Troy

Kyle D

Troy Raymond wrote:

Here is a really over processed image. I ran it through Dynamic HDR, then took the new hdr image and ran it through as a 'single image' hdr a 2nd and 3rd time until the look desired was achieved.



Troy

I never even thought to run the same image through multiple times! I'll have to try that, thanks for the idea.

Oh yeah, love the jeep!

anonymouscuban

Here's a few of mine...

dlplumer

Nice work cuban. Again, for my taste, I would prefer less saturation