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Group: CITY/URBAN HDR

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Made By: ade_mcfade
Start: 26/11/0000 - 7:02 PM
End: 30/06/2010 - 7:02 PM
Address: Leeds
Leeds
England

this is an open group for people to post their urban/city HDR shots to, discuss techniques and dig a bit deeper in to the whole HDR thing.

Basically, any shot that you want to add here must have had more than one exposure blended using HDR techniques, be that exposure blending or tone mapping.

Tone mapping/exposure blending is often just the first elementary step of producing HDR city shots, there's steps to correct verticals, deal with moving objects like cars and people, lights burning out, what to leave in and leave out of the shot, whether to clone.... lots and lots of things to discuss.

If you're up for sharing your thoughts and images, then join.

If you just want to look at the shots, look away, but don't join till you're ready to contribute Smile

Event Location - Event Location      Nearby Photo Locations</a> - Nearby Photo Locations

Comments

ade_mcfade
ade_mcfade  1515216 forum posts England216 Constructive Critique Points
27 Nov 2009 - 9:58 AM

Hi folks - cheers for joining

Feel free to use this "forum" bit at the foot of the meeting to ask questions, make points, share ideas and all that kind of thing.

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27 Nov 2009 - 10:37 AM

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ade_mcfade
ade_mcfade  1515216 forum posts England216 Constructive Critique Points
27 Nov 2009 - 10:37 AM

Tone mapping

I've always usec Photomatix for my HDRs, and have usually used Details Enhancer to produce my TIFFS.

However, I've found that you can get lots of compormises with this method - halos, pale patches in shots, insipid shots - as well as some fantastic results.

So I started experimenting with "Tone Compression" - my "Bridgewater Dalek" was done with TC and has a more natural look than the "Granay wharfe flats" shot, which was done with DE.

Which tools and approach to tone mapping do you use to get the look you like in HDR?

Strobe
Strobe  121256 forum posts United States
27 Nov 2009 - 12:43 PM

OK, so here's the thing....

Software
I use an old version of Photomatrix the finish in Photoshop and really think I should look at other apps.

Why HDR
Firstly: I enjoy Urban Images and particularly underground (not as in TFL) I find you can create images which are quite different to what you see but that is what I set out to create.

I usually plan my urban images and have a mentally vision of tones and composition prior to setting up. Usually the end results are what I envisaged.

Secondly: To put it bluntly I feel my camera has a crap dynamic range and capturing images in low light is difficult (or I am stupid Wink )

What next?
I am thinking of a unique technique to create industrial images, I have an idea which I have not come across, all I need is time to experiment.

Question
What is "Tone Compression"

woodlark
woodlark  15542 forum posts United Kingdom1 Constructive Critique Points
27 Nov 2009 - 12:52 PM

I have pickd an above shot at random which happens to be Strobes Italian Job. This sort of effect intrigues me. I am currently editing shots with PS7 and to my knowledge cannot get this sort of effect. And agree about low light shots from the camera.
Any links etc as to where i am going wrong or what software i need would be welcome.
At work at the moment so i will check later for any response.

Cheers Karl.

ade_mcfade
ade_mcfade  1515216 forum posts England216 Constructive Critique Points
27 Nov 2009 - 1:25 PM

What is "Tone Compression"

When you tone map at shot in HDR - look at the top of the tool box with all the sliders on.

There are 2 tabs

Details Enhancer
Tone Compression

They are 2 differrent ways that Photomatix allow tone mapping.

I bet you've just missed it, even after all this time Smile

There are less sliders and less control, and to be honest, you're probably better with Details Enhancer for the striking look you're after Strobe. But if you get horrible halos that you can't get rid of, then TC is one alternatve.

I've found it useful for areas around the sky/building join.

ade_mcfade
ade_mcfade  1515216 forum posts England216 Constructive Critique Points
27 Nov 2009 - 1:29 PM

Karl - have you ever used HDR? That's one of the best ways to get the effect you're after.

You can get an extreme effect in Tone Mapping and then take it further in Photoshop with contrast and sharpening.

Nick_w

I've been using HDRI for some time with Photomatix. Mainly using details enhancement settings, but have also used the compression. For landscapes (not part of this group) I sometimes use the Fused images function - normally only used as a last resort if I get too much flare from the filters, of its difficult to conceal the grad.

I often combine the HDR image with one or more of the originals in Photoshop to get the feel I need.

I've put up a couple - but would like to explore more Urban HDR in the future.

ade_mcfade
ade_mcfade  1515216 forum posts England216 Constructive Critique Points
27 Nov 2009 - 3:16 PM

Crikey - that's a lot of shots Luis!

We're not going to be able to discuss the shots if we all load loads of old shots at once, by all means put up a couple of old ones to get the ball rolling but I'd suggest that we put up current work as and when we add to the galleries.

Can't knock your enthusiasm though Wink

woodlark
woodlark  15542 forum posts United Kingdom1 Constructive Critique Points
27 Nov 2009 - 7:52 PM


Quote: Karl - have you ever used HDR?

No!


Quote: There are 2 tabs

Details Enhancer
Tone Compression

Cant find these (are they on photosop 7)

Had I better read up on HDR before I join this group, sorry but complete novice.

woodlark
woodlark  15542 forum posts United Kingdom1 Constructive Critique Points
27 Nov 2009 - 8:51 PM


Quote: Karl - have you ever used HDR?

No!


Quote: There are 2 tabs

Details Enhancer
Tone Compression

Cant find these (are they on photosop 7)

Had I better read up on HDR before I join this group, sorry but complete novice.

Last Modified By woodlark at 27 Nov 2009 - 8:51 PM
ade_mcfade
ade_mcfade  1515216 forum posts England216 Constructive Critique Points
29 Nov 2009 - 3:01 PM

They're on Photomatix - which is a tool that just does HDR and image blending.

You can download a free trial version and give it a go.

All you need to do is...

put your camera on a tripod
take 2 or more shots of teh same thing at different exposures (vary the shutter speed, not the aperture to change the exposure)
put the shots on your PC
open up Photomatix
In the menus at the top, there's an option to "generate HDR", select that and you get a box to choose your images on your PC - then hit "Generate"

That creates a thing called a "HDR" file - this is like a negative that you need to develop, it's pretty useless at this point... so to "develop" it you use "Tone Mapping"

That's where details enhancer and tone compression come in.

There's plenty to learn, lots of us use it, so ask questions when you get stuck

All I'd say for this group is that you head into town with your camera and tripod and give it a go - that way it's "CITY/URBAN" Smile

Also, take a look at the shots in teh group, you'll learn from looking at them and asking questions..

LesF
LesF  12182 forum posts9 Constructive Critique Points
6 Dec 2009 - 8:01 AM

Thought I would join this group as the urban / HDR is just up my street at present, if I can learn and improve by it so much the better

Cheers All

LesF

woodrow
woodrow  12153 forum posts Scotland
13 Dec 2009 - 1:57 AM

hi

hdr process intrigues me but, i have very disappointing results, a frequent problem i have is halos' any ideas how to stop these Ade?

Paul

wamp
wamp  13276 forum posts England8 Constructive Critique Points
14 Dec 2009 - 9:14 PM

I've found it can be generally the light smoothing setting, or the strength applied to the image. Might be worth having a play with an effected image and see how those various setting effect the image.

It generally seems to occur with brighter areas next to darker areas, such as the bright sky above the roof of a building.

Hope this is of some help! Smile

Cheers, Sean

Richsr
Richsr  1291 forum posts England223 Constructive Critique Points
16 Dec 2009 - 9:38 PM

Good to see this group Ade, like to join as urdan/HDR is an area always been interested in.
Regards Richard.

ade_mcfade
ade_mcfade  1515216 forum posts England216 Constructive Critique Points
17 Dec 2009 - 11:27 AM

welcome aboard Richard - I can see a Leeds takeover coming Wink

Despite me posting lots of Manchester shot... ahem

ade_mcfade
ade_mcfade  1515216 forum posts England216 Constructive Critique Points
17 Dec 2009 - 11:33 AM


Quote: Hi

hdr process intrigues me but, i have very disappointing results, a frequent problem i have is halos' any ideas how to stop these Ade?

Paul

You get them more with "Details Enhancer" in Photomatix

Try using "Tone Compressor" tone mapping for starters - that can give a more realistic looking result.

If that doesn't work, then go for full light smoothing and a strength of around 60-80 - usually lessens the effect.

I'll be doing workshops on this in 2010 so let me know if it's of interest

Pavan_Chavda
20 Dec 2009 - 1:36 PM

Hey guys, thought i'd jump on board as this looks cool.

Been using Photomatix for about 9 months or so but still learning so may have a few questions in due course.

Anyways, some great shots uploaded already which always inspires.

Pavan.

Morgs
Morgs  11 Wales62 Constructive Critique Points
23 Dec 2009 - 9:55 PM

Really pleased to see this on Epz. Urban has always interested me, and I aspire to the quality of the shots that I see you guys producing. I've only been using photomatix for about three months and have a lot to learn. Anyway, I've linked one of my hdr shots from some weeks back.

Regards,

Dave

martinl
martinl  15269 forum posts United Kingdom2 Constructive Critique Points
11 Mar 2010 - 9:54 PM

Am going to give this a go, as fancy something a bit different. Had a little pop at some stuff round Sheffield today. Only processed one up to now, so will post it tomrrow for your delectation.
Smile

Pete
28 Jul 2010 - 9:51 AM

This meeting style group will close on 30th June 2010 as we now have a facility to create proper groups. Please go to Groups to find out more.

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