Category Archives: Photoshop

Crashing On The Shores Of Xwieni Bay

This is one of the most northern arts of Gozo, 60 miles north lies Sicily. The photograph really doesn’t capture the magnificence of the place unfortunately; I distinctly remember my WOW-meter going off the scale when I was actually there. Just to the left of this scene are the salt pans where seawater is evaporated leaving huge deposits of salts to be later collected. I was more than impressed by the ingenuity of it all!

In other news that probably I only care about, I had planned to go to Kerry this Easter weekend to visit some friends there, only to find that a train ticket there would set me back €78! From Dublin to Kerry is under 300km as the crow flies – it’s actually cheaper to fly there!! I’m sure there would have been plenty of time to get the D300 out for some landscape photos but €78 just proved to much for my wallet :(

3437257603 77025f1b14 o Crashing On The Shores Of Xwieni Bay

Technorati Tags: , Nikon, , , ,

Dodging Traffic On The Champs Élysées

The Champs Élysées in Paris is home to one of the busiest and most dangerous roundabouts in the world, so when you’re standing in the middle of the road and hundreds of angry French cars are whizzing by in the dark you’d better be sure you’re in a safe spot! Fortuantly I was, although the friends I was with were none too pleased of the constant hold ups!

26 dodging traffic on champs elysees Dodging Traffic On The Champs Élysées

Technorati Tags: , Nikon, D300, , , ,

Docked Boats in the Spring Sun

St Patrick’s Day was good.

Camera Settings (1 NEF files – Nikon D300 Body, Nikkor 18-200mm VR Lens, No Tripod)

  • Aperture: f/4
  • ISO: 200
  • Lens: 18-200@18mm
  • Shutter Speed: 1/2000s

18 docked boats sliema bay Docked Boats in the Spring Sun

Technorati Tags: , , , , HDR, , , , , , , ,

Endless Trees

They’re not really endless tress but I couldnt think of any other title. Actually I wonder how anyone comes up with post titles. Are they an arbitrary decision or is an abundance of time put into each post name. Mmmm I better name some hot keywords before I go: I used my Nikon D300 and five exposures at f-stops of ±2, ±1, and metered, to make this high dynamic range (hdr) photo. I used Photomatix Pro and Gimp to postprocess the images. There, that’s enough I think.

  • Aperture: f/10
  • Shutter Speed: 1/400s, 1/200s, 1/100s, 1/50s, 1/25s
  • ISO: 200
  • Lens: 18-200@18mm

tree surrounded by leaves Endless Trees

Technorati Tags: Nikon, D300, high dynamic range, hdr, Photomatix, , , ,

22 Tutorials For Creating High Dynamic Range Photographs Using Photoshop / Photomatix

HDR photography has become quite popular in recent years. Some people like the over the top trippy acid looking results one can get with Photomatix (although Photomatix isn’t limited to this), while others prefer the greater flexibility and reputed more realistic results that can be got from Photoshop. To help yourself, and myself, see how weblogs approach HDR I’ve put together a list of 22 tutorials / guides that explain the process, from the basic drag and drop approaches to the more complicated post-processes one can do following tonemapping. Some of these guides you may have seen before, others are less popular, but they all offer something new for everyone.



1. Vanilla Days
Image From Vanilla DaysThis is a very popular HDR tutorial and compares the capabilities of Photoshop against Photomatix, concluding that Photomatix gives more control over the final image. It explains the essentials – auto-bracketing, merging and tone mapping. What makes this tutorial stand out from others is that is explains in good detail the tone mapping options available in Photomatix and provides results for different Photomatix settings. It also makes a lot of comparisons: using 1 RAW versus 3 RAWS, using jpgs instead of RAWS and direct comparisons between Photoshop and Photomatix. If you’re interested in creating HDRs this tutorials should definitely be in your bookmarks.



2. PopPhoto
Image From PopPhotoThis post, by Jack Howard, is a whopping 11 pages long and explains pretty much everything you need to know about putting together HDRs. With such depth you expect to gleam some nuggets of information – I knew Photomatix had exposure blending capabilities but I didn’t realise how limited they actually were until I read this. Like before, Photomatix and Photoshop are compared and the strengths and weaknesses of both are listed; quite useful if you’re in two minds over which one to buy. At the end of this tutorial there is a useful tips page listing a methodology for producing the best HDRs possible.



3. BackingWinds
Image From BackingWindsBacking Winds is a blog maintained by Ryan McGinnis. He shows us how to create realistic looking HDRs using Photoshop – and definitely a guy whose against the ‘misuse’ that often occurs when creating HDRs with Photomatix (see a post of mine for an example!). His post is a great resource for anyone interested in using Photoshop, simply because it’s such a huge package and is less accessible than Photomatix – it’s very easy to be overwhelmed by Photoshops 19000 options! Ryan also give some pointer on adding those crucial finishing touches using Histogram and curve adjustments – very useful!



4. GrindGod
GrindGod has a very well layout guide, starting from the top with telling us the equipment we need to get started before getting into more detail with the various options that Photomatix provides. One flaw with this guide however is that there are no images describing the steps or showing any HDR examples.



5. CameraLabs
Image From CameraLabsCameraLabs is a forum and this is simply a post on it, but it’s one heck of a post! The interesting thing about this post is that it was the guys first attempt, and it’s a very good one! There are pictures to go with every step also so it’s very easy to follow. The actual settings are shown so you have some benchmark settings that should work reasonably well to start with. This is a great tutorial for novices; however because it’s a posting on a forum there’s no guarantee that it will remain there long term – sometimes forum topics or posts can be removed either by the administration or the poster so if you find this guide useful it would be worthwhile saving it to your computer.



6. The 23x Blog
Image From The 23x BlogAnother good tutorial, it has nothing new over the five previous ones but hey, it’s good to check out it’s work if HDR is your passion! It does have some great results – I love the photo of the boats (right) that is shown on the site. Right now I dream of being able to make a photo this good! It gives some essential tips such as using the same aperture for each shot – a lot of other tutorials seem to overlook this point. The author also has a link to their Flickr page where you can see more images.















7. Popsci
Image From PopsciThis guide has over 1500 Diggs since May 2007 so has proven very popular. It first describes what exactly a HDR image is, before showing us the differently exposed thumbnails that will be used for the final image. It then describes the two main programs used to create the HDR: Photoshop and Photomatix before describing a little what tone mapping is and finally comparing the original photo to the final tone mapped image. It also comments on an open source alternative, Qtpfsgui, available on Windows, MAC OSX and Linux.





8. Digital Camera Resource Page
Image From DCResourceThis is another guide posting on a forum. It highlights the problem many people will have if they are creating HDR images from multiple RAW files – aligning of the source files. According to the guide Photomatix cannot align wide angle shots very well and so it recommends using a program called PTGui. It will warp and align each picture to match up perfectly with each other – handy if you don’t have a tripod nearby! The guide is quite detailed – it provides the original under- metered and over-exposed images, it provides the settings used to create the HDR and explains how the settings in Photomatix affect the final results – a good tutorial to check out.













9. Cambridge In Colour
Image From Cambridge In ColourCambridge In Colour explains why increasing the dynamic range of your photography is a good thing, when and where the technique should be applied as well as some of the trade off that you will encounter by taking the HDR approach. Many people (myself included) treat HDR-esque post-processing as a black box; images go into Photomatix, HDR comes out followed by tone mapping. Cambridge In Colour delves behind the scenes and explains very well the mechanisms of HDR – well worth the read if you want to sound all knowledgeable on the topic :) .













10. NatureScapes
Image From NatureScapesThis isn’t so much a traditional guide as it is a book on the topic! You can download a 49 page pdf of this guide; well worth having saved to disk. It covers every aspect you could ask for: What is HDR?, Setting Up Input Images, Processing a Single Frame HDR Image and Processing Multiple Frame HDR Images. The HTML version also provides a gallery of very good HDR images towards the end that’s worth checking out. By the way the book is free so you’ve really got no excuse not to check it out!







11. PhotoShop Support
Image From Photoshop SupportThis is an advanced tutorial in Photoshop – for those of use used to the black box approach of Photomatix, be prepared for a challenge! The main focus of this tutorial is overcoming the problem of combining images in which subjects in the images have moved between different exposures. This is achieved using smart objects. There’s quite a bit of manual work involved (oh No!) but it gives you more flexibility in the long run when you are post-processing your hard days shots.





12. Duane Storey
Image From Duane StoreyA quick tutorial with a great subject (see right) this guide uses Photomatix to create a great scene of the Vancouver skyline. Five images were used to make the final image and from what I can gather from the guide, the HDR was made using jpg images – very impressive!.







13. Abduzeedo
Image From AbduzeedoAbduzeedo uses a simple subject to get a very color rich final result. There are plenty of illustrations to go with this tutorial as well so there’s no way you’ll get lost while using it. It’s also the first guide I’ve seen where a HDR was made from a compact camera, showing that high end DSLR’s are not essential for getting good results.







14. Thoughts From My Life
Image From Thoughts From My LifeThoughts from my life uses an interesting subject and Photoshops Merge To HDR options. Any photos taken indoors that have windows in them usually suffer from overexposure of whatever can be seen through the window – Thoughts From My Life shows how HDR can overcome this problem.







15. WebDesign Library
Image From Web DesignHere’s yet another site that uses Photoshop to create the HDR image from three differently exposed RAW pictures, followed by tone mapping in Photomatix to jazz up the final shot.








16. Easy HDR
EasyHDR is a piece of software I just came across while writing this post. I haven’t used it so can’t say much but the website gives a very comprehensive guide to all its functions and the illustrations of
HDRed photos look very impressive.



17. Slager Man Photo
Image From Slager Man PhotoSlager Man Photo shows the difference between the histogram of a regular picture and that of a HDR, something I’ve not seen anywhere else. They also have a link to a small gallery at the bottom of the guide of some seriously wacky looking sunsets!









18. Visual Photo Guide
Image From Visual Photo GuideThis guide is quick and to the point – no padding. Some settings for your camera are recommended and how to set them on a Nikon D50 (the camera used for this tutorial) is explained. There’s also a link to a HDR video tutorial.



19. Picture Correct
Image From Picture CorrectPicture Correct throws together a little personal story to go with their guide – a nice touch. It uses only two images – one overexposed and one underexposed to get really good results. Layer masks are used as one choice to blend the photos so if you enjoy working with them then this guide is for you.







20. Grumpy Editors Guide To HDR
Image From lwn.netEvery site I’ve listed so far has assumed that you are either using a windows or a mac machine, but what if you use Linux instead? Well then this tutorial is for you: it mentions OpenEXR, PFScalibration and Qtpfsgui as Linux HDR solutions. Tone mapping is then achieved with Qpfstmo (I’ve no idea why such strange names are used, if they give results then that all that matters.)







21. Digital Photography School
Image From Digital Photography SchoolDigial Photography School is a very popular photography site and for many is the first choice of all photo related information on the internet. This guide is a guest post from Pixelens.com. It talks about the essentials, and compares Photomatix to less known programs (to me at least) such as the Photoshop plugin ReDynaMix. It also compares the difference in using different number of exposures and how much of a difference there is between using a single RAW and multiple RAWS.







22. Stuck In Customs
Image From Stuck In CustomsStuck In Customs is a site by Tray Ratcliff, home to some of the most amazing HDR photographs I’ve ever seen. Seriously his work is world class and is the standard everyone should aspire to. From what I’ve seen he deals mostly with the surreal HDR look rather than the realistic look but you should check out his work to really see what can be done if you know how. It’s likely you’ve seen his work on plenty other sites – any list of “Amazing HDR Photographs” will likely contain more than one of his works.


After looking through these guides I feel rather humbled by my own efforts. I guess the saying is true – the more you know about a topic the more you realise how little you know.

Technorati Tags: HDR, , , , , , RAW, ,

Creating 360 Degree Panoramic Scenes in Photoshop


A 28mm wide angle lens has a viewing angle of around 76° degrees, a circular fisheye lens will give you a 180° viewing angle, and a wacky distorted image, but as far as I know there’s no such thing as a 360° lens (yet). This limitation makes it a little difficult in creating 360° panoramic images of your favorite horizons. Fortunately if you take stand in one spot and rotate incrementally while taking multiple images, each one overlapping the next by about a quarter, they can be imported into Photoshop (CS3 anyway, I’m not so sure about earlier versions) and merged together quite seamlessly.
The procedure is simple but there are a few options to choose from. First of all we have to choose our images. To illustrate I’m going to use some photos I took while on the top of Benbulben (a small mountain in Ireland). The final image itself is far from spectacular: it’s mostly just grass, but that’s not the point here – I want to show you how overlapping images (of any sort) can be combined. Here are the images I’ve chosen to merge:

360-thumb1360-thumb2360-thumb3360-thumb4360-thumb5360-thumb6360-thumb7

With Photoshop open go to File -> Automate -> Photomerge. We are now presented with this box:

Options box for photomerging in Photoshop CS3

Immediately we can see on the left five options for merging our images and options for selecting the images themselves. For most people, myself included, choosing ‘Auto’ from the left-hand-side options is usually the safest way to go – Photoshop does a great job in stitching images together and most of the time the process is seamless. For completeness sake however I tried combining my images using each process to see what results I could get.

1. Auto
Layers created in photoshops photomerge tools
As expected Auto merging has done it’s job well: from the image below we can see, or rather can’t see, any sign of stitching between each photo. What Photoshop has done here is place all the image files onto their own layer, on one large canvas (see right) and searched for similarities between each image. Depending on how much similarity Photoshop finds between each one, it arranges them accordingly and applies a mask layer to each layer. Finally Photoshop removes any part of the photo that isn’t useful, usually any sections near the interface of two fo the images, as well as the rest of the canvas for that layer. This can take a while for Photoshop to do – for this example it took about 10 minutes or so. Choosing the auto option has the advantage of using a ‘click and forget’ approach: it gives very good results but you can’t fine tune the image positioning if you feel you need to. Personally I think the panoramic shot below would be far better if I could centre the view on the right had side, leaving the grassy sections on the outer edges of the shot. I’ve left the image uncropped so you can see how much you can typically expect to lose from each photo when you actually do the cropping.

Automatic Photomerging – Click for larger image: about 500kB

Thumbnail of automatic photomerging in Photoshop

2. Perspective
Tyring to photomerge the images using the Perspective option didn’t fare so well – I got this message half ways through the merging process:

Some images could not be automatically aligned.

Choosing perspective is useful if there is a good sense of distance in your shot. Using the Interactive Layout option later on I was able to apply perspective to some of the images (albeit with another error) that you can see below.

3. Cylindrical
If you wish to create a panoramic image in which you want to exaggerate curvature, for example the horizon of the earth shot from a plane or a mountain top, then you should try using Cylindrical Photomerging. I don’t think it applies to the photos here but I’ve used it quickly anyway for completeness sake.

Cylindrical – Click for larger image: about 500kB


Perspective option for Interactive Layout Photomerging in Photoshop

4. Reposition Only
The reposition only option allows you to move each image once Photoshop has finished merging them, so if for example you feel one could be positioned a little bit better you are free to do so, but Photoshop won’t re-blend afterwards which means you’ll have to alter the mask layer yourself if needs be. Sounds like a lot of hassle for very little gain in my opinion. You can see in the thumbnail below the gaps between each image – they won’t show up after you save

Reposition Only – Click for larger image: about 500kB


Perspective option for Interactive Layout Photomerging in Photoshop

5. Interactive Layout
The interactive layout option gives you full control in positioning each image and applying perspective. It will also try to blend each image again after repositioning, a big advantage over the Reposition Option.


Interactive Layout Photomerging in Photoshop

You can easily see from the image below that even after I move each photo completely out of place Photoshop will do its best and try to blend them together anyway – something that won’t happen using the Reposition Only option.


Perspective option for Interactive Layout Photomerging in Photoshop

I tried applying perspective here and while I still got an error…

Photomerge was not able to automatically correct the perspective for all of the images.

…photoshop allowed me to remove a couple of image and I was left with whats below. Unfortunately Photoshop has completely blown the long shot image in an attempt to add the perspective. I suspect this is because there is such a sharp change in distance from one shot to the next.


Perspective option for Interactive Layout Photomerging in Photoshop

So if you have multiple photos then that you wish to merge into one long panoramic scene then you can try some of the option here that Photoshop has available. You can see the final shot here; like I said earlier it’s mostly just grass! I’ve made a slightly more interesting one from the top of Croagh Patrick that you can see here also!

Related Articles

For A Panoramic View, Head To Croagh Patrick

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