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HDR Portraits: Thoughts on Sofia Plagakis' Portrait

In my most recent additions to the Women With Icons series, you may or may not have noticed that Sofia Plagakis' portrait was a little different. It was "dramatic" or "artsy," as some of my friends called it--more so than some of the other images I've done.

Here's my secret: Sofia Plagakis' portrait was my first foray into high dynamic range imaging. I didn't intend to shoot the image that way; it happened long after-the fact.

Here's why.

For Sofia's portrait (and others I've done), I bracketed widely--capturing various exposures--because the sunset, bright sky, and dim surroundings created a very high-contrast environment. Both digital CCDs and film (especially slide film) have difficulty capturing as broad a range of value as what the eye can see, and so by bracketing I hoped that I could make up for it.

I walked away with scads of RAW files to go through. Carefully examining all the portraits (in Adobe Bridge), I chose the shot I wanted to work with out of all the possibilities, and pulled it into the Camera Raw editor.

Here came the struggle. With the single exposure I had chosen, all the adjusting of the image's brightness, contrast, histogram, and levels, couldn't result in a satisfying image.

As you can see, there wasn't enough interesting information in the sky to warrant having so much of it in the picture. And the ground was a deeply unsatisfying, flat texture. Overall, the image was very "blah."

So I tried something new. I pulled two more shots into my RAW editor--one overexposed (making the ground appear "normal"), and one underexposed (making the sky appear "normal").


The underexposed image--you can see the sky has a great deal of detail, but Sofia's face is too dark.


The overexposed image--the sky is completely blown out, but the bottom half of the image is just about right.

Each of these images on their own, of course, would be just as unsatisfying to me as the first. But here's the trick: for each image, I adjusted the settings in the RAW editor to create similar ranges of value in the areas of the images I was concerned with (sky versus ground).

Then, I took the two images and combined them into a single file, layering the file properly exposed for the sky underneath the file that was properly exposed for the ground. With a little masking, I was in business:

Of course, I'm never completely satisfied with an image until I've tweaked and blended all its parts. A few layers of isolated curve & level-adjustment, and I'm a happy camper:

Now some of you may be thinking, Jocelyn, isn't this whole "high dynamic range" imaging thing a whole buttload of digital cheating? Good question. No, in my opinion, It's not.

My reasoning goes like this: much of the photo manipulation you can achieve in Photoshop is similar to what you encounter in a wet darkroom. Terms like "dodging," "burning," and "masking," were invented in the darkroom, and you'll find them awaiting you in your tools palette. Retouching, combining two images as one, and other sophisticated tricks were also invented in the darkroom. The fact is, manipulating the supposed "reality" of an image is nothing new.

That is not to say that Photoshop doesn't offer any advantages. The number one advantage of Photoshop, in my mind, is that it is FAST.* No darkroom setup, waiting for paper to develop or for prints to wash--it's wonderful to have greater ease of experimentation. And yes, Photoshop itself can go far beyond what one can do in a wet darkroom. But I find that I rarely use more than the basic tools for editing images. Rather, I reserve those tools for illustrative and design purposes, like this image below (one of the square illustrations I did):

So there you have it, folks: a successful foray into high dynamic range imaging and Photoshop geekery.

*Notice that I didn't say "cheap," as well as "fast." The fact of the matter is that Photoshop is a very expensive program, not to mention all of the other tools required to go start-to-finish with digital photography (camera & accessories, computer, and perhaps a printer, maybe more!). In my opinion, digital photography offers a limited (but still significant) cost advantage over traditional photography, but triumphs by way of ease-of-use, rapidity, and portability. More on this in later articles.




comments (5)


I was just recently reading about doing exactly what you've done: take a RAW images and process it twice, once for sky then once for ground and combine in Ps.

I don't think it's cheating, either. If a camera can't capture the dynamic range the human eye can (and it can't), then use chemicals or computers to replicate what the eye would see seems perfectly acceptable to me.

Did we happen to see this subject at our parish yesterday?

w h o? Jim N. / w h e n? May 21, 2007 12:29


I'm glad you agree with me! I'm so surprised when people think that this kind of thing is "cheating," because I used to do the same exact thing in the darkroom in college!

I didn't see Sofia at the parish yesterday, no. She lives in downtown D.C., and attends regularly at one of the cathedrals there. She also travels quite a bit. Perhaps a lookalike was visiting!

w h o? Jocelyn / w h e n? May 21, 2007 12:51


Hi Jo, When I first looked at this, it reminded me so much of J Aubrey Bodine's photography. Great job! I love looking at your work. You're so talented.
Carol

w h o? Carol O'Brocki / w h e n? May 21, 2007 16:54


Perhaps! When I first saw her in the back of the nave I thought, 'Ahh.... the mystery woman from DC!". :)

I haven't tried this myself yet, as I almost never use a tripod (difficult when chasing three kids through wherever I am). But I plan to do so.

w h o? Jim N. / w h e n? May 21, 2007 20:33


I saw this photo before you identified it as HDR, and it didn't impress me as an entirely new level of artsiness. I did notice how much the sky contrasted with the figure, and the detail in the sky. A few weeks ago I saw an article on HDR, and I compliment you that this photograph is lacking the artifacts which were clearly visible in some of the article's examples. Very nice.

Some time back I used a darkroom, and wasn't particularly good at dodging and burning. I tried low contrast paper to compensate for the problem, that the negatives had more dynamic range than could be printed at normal contrast. But with low contrast paper the photos would look washed out. Almost the same thing happens with digital photo processing, except that the digital images don't have has much dynamic range to start with (compared to well-exposed film negatives).

Cheating or not, what this kind of HDR processing does is reduce the overall contrast of the image (between the sky and the face) while preserving the contrast n the details so they don't look washed out. Why do we need to apply this technique, rather than just reproduce the original contrast in the photo? Part of the answer is that photographic paper and computer screens can't represent the full range of contrast present in outdoor scenes. Another part may be that we view a photograph in a single glance, though the same scene viewed real life typically occupies a wider field of view and our eyes adjust to varying levels of brightness as they scan the scene.

There are already cameras which will take bracketed exposure levels with one click of the shutter. Many more should follow. Taking advantage of that feature will be an art.

w h o? Magellan the Red / w h e n? May 23, 2007 00:55





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