Generating a HDR (High Dynamic Range) Illustration

Before I begin any HDR Illustration I browse my library and look for an image or images I think might make an interesting illustration. I always have some preconcieved idea as to how I want the final piece to look. For this demostration, I will be combining two photographs to create my illustration. Keep in mind, in most HDR merges we have little idea as to what exactly the final will look like as many cool and sometimes not so cool things happen in the process of creating your HDR image.

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Step 3: Again, I open my image back up in Photomatix for the third time. Filter > Photomatix > Tonemapping. I ran through the same steps as the first two. I wanted my image to have more darkness and less of the blue and yellow glow for my preconcieved idea. I made my adjustments allowing the darker tones to bring more detail into the texture of the walls and walkway. I did this with the Luminosity and Black Point Slider. Hit OK and again the image opens back up in Photoshop.

Step 4: You won't see here, but I still had some yellow in the image after bringing it back into Photoshop, therefore, I needed to take the yellow out in Photoshop. I did this with Hue / Saturation. Image > Adjustments > Hue / Saturation. I used the pulldown menu and went to yellow and pulled the saturation slider to the negative side until I removed most of the yellow. I then went to curves Image > Adjustments > Curves and put a slight curve to the image giving it more contrast therefore intensifying the blue walkway and glow at the doorway.

Step 5: It's now time to remove the pink building in the background and open my doorway for my drop in image.

(From this point on I suggest you duplicate every layer you create, this will allow you to go back if you mess up).

I duplicated my background layer. I took the pen tool and outlined the doorway. Once I had the door outlined with the pen tool and went to Paths > Make Selection, (If Paths isn't work space, go to the Windows drop down menu and check Paths). I used a 1 pixel feather on the selection. Once the marching ants appear I hit the delete button on my keyboard and everything within the selection disappears. Keep in mind you duplicated the background layer, therefore the background layer is showing through and you won't see any difference until you click the eye icon on the background layer, this will remove the visible background layer. Once the eye icon is switched off you will see a white background through the door.

Now it's time to drag our second image into our illustration. Lets's move on to step 6 on the next page.

As you can see I selected two images, neither very exciting images on their own. The first step is to open the image of the walkway into Photoshop CS3. I will work with this image first before opening the photo of the little girl into Photoshop.

Step 1: Open first image into Photoshop, the image must be a 16 bit image for this project (32 bit will also work)
(In Photoshop go to Image > Mode > 16 bit) If needed go ahead and put a slight curve on image. The image doesn't need to be perfect at this point. I don't worry about the histogram as this will dramatically change once it is run through Photomatix.

Software needed: Adobe Photoshop CS3, Photomatix Pro (Photoshop plug-in version)
Task Level: Easy to moderate
Step 2: Assuming Photomatix Pro has been installed as a Photoshop Plug-in we can now open our image into Photomatix from Photoshop by going to

Filter > Photomatix > Tonemapping.

This will bring up a window looking much as the image on the left. We have the option of showing the image in three different sizes 512, 768 or 1024. I prefer the

larger setting at 1024.

To the left of the image you see a series of sliders, Strength, Color Saturation, Light Smoothing, Luminosity, White Point, Black Point and Gamma. If you put your curser over each slider a box will show up describing what that slider does. At this point I start with Strength and make adjustments and work my way down to each of the other sliders. As you will

notice my sliders on the first try were set towards the higher end with the exception of Light Smoothing and White Point.

We can back track to make changes to the previous sliders if needed. I can't give you any numbers because you will need to adjust to your liking . You may get the result you want on the first try but don't fret if you don't. I ran my illustration through Photomatix three times, the first try is shown on the left. You will need to make your own determination as to how many times you run your photo through Photomatix.

Notice the blue and yellow glow I'm starting to get, this changes with the Color Saturation slider.

When I'm (your) happy with the result, hit OK. The image will open back up in Photoshop.

Step 3: The image is now open in Photoshop. Adjustments in Photoshop can be made if needed such as Hue and Saturation or Selective Color or what ever you wish. I didn't do anything with mine except to open it back up in Photomatix

Filter > Photomatix > Tonemapping

This brings the same window open as before. Go ahead and enlarge the window to 1024.

Now start playing with the sliders once again. You will notice my sliders are moving towards the minus side with the exception of Light Smoothing and White Point. Yours may or may not depending on what you like while playing. My guess, you'll find yourself working with the sliders moving towards the minus (left) as well. The plus side turns the image very dark.

The blue and yellow glow become more pronounced this time around. I am really liking the affect. I decided to go ahead and open back up in Photoshop.

Once your happy with the effects you've created go ahead and hit OK and your image once again will open back up in Photoshop.

Step 6 (next page)
Photo Tips
HDR Illustration Page 2
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