Tag: tone mapping

More Handheld HDR

Posted on by Nick Roberts
Supercharger #1
Supercharger #1

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Yesterday I talked about shooting HDR brackets handheld; today’s image is another example of that technique. There are many occasions or situations where a tripod is out of the question. Often those same situations present difficulties due to the extremely broad dynamic range of the subject; that is when a bracket set can assure that the entire dynamic range is covered.

In this image the light on the polished metal was extreme and a single exposure would have left the sky overexposed while the shadows would have been underexposed. By shooting a three frame bracket at +2, 0 and -2 EV I was able to capture the clouds in the sky, the details under the carburetors, the reflected light on the black drive belt in the lower right of the frame and the reflections in the windshield. By combining the three exposures in NIK HDR Efex Pro 2 I was able to bring the broad dynamic range under control.

One of the features of NIK HDR Efex Pro 2 that really helps with handheld images is the Align Images feature that can be applied at the initial merging of the brackets before any other processing takes place. I keep this feature checked for all my HDR work because even on a tripod there can be slight movement between frames; of course when shooting handheld there is bound to be some movement and this feature along with a 20% Ghost Reduction application usually solves that issue.

Finally I used the Balanced preset in NIK HDR Efex Pro 2 as my starting point to tone map the image. A little tweaking there opened up the shadows and tamed the highlights while bringing the clouds out in the sky. I then returned the image to Aperture 3 for final adjustments to exposure and some enhancement of the red and yellow color channels to saturate the brown on the car. A little adjustment to the blue channel saturation and luminance further strengthened the contrast between the clouds and sky. Lastly I sharpened the image and then took it into Photoshop CS5 and used Content Aware fill to remove a small patch of white at the edge of the photo that was there from the corner of the event sticker in the windshield.

Using Handheld Bracket Sets for HDR Images

Posted on by Nick Roberts
Deuce Coupe Interior #1
Deuce Coupe Interior #1

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I found another good use for HDR processing last week while photographing at the NSRA Streetrod Nationals here in Louisville. It’s always difficult to capture the details inside the cabins of these cars in a single exposure. By shooting a three frame bracket set of +2, 0 and -2 EV I was able to tame the highlights and reach into the shadows. I shoot handheld whenever I can to allow myself the luxury of being able to frame my images without the hinderance that a tripod creates. I have found that applying 20% Ghost Reduction and checking Align Images in NIK HDR Efex Pro 2 compensates nicely for any camera movement that a handheld bracket set creates. In this image you can see the texture in the carpet as clearly as if it had been shot from a tripod.

I used the Balanced Preset in NIK HDR Efex Pro 2 as my starting point for merging the three frames before tone mapping the image. I then returned the image to Aperture 3 where I completed my adjustments to exposure and contrast before applying sharpening.

Deuce Coupe Interior #2
Deuce Coupe Interior #2

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For this monotone image I took the color HDR image into OnOne Perfect Photo 7.5 and used the Perfect B&W application. I started with the Ambrotype preset and then made several changes to it’s default setting. I used a cream color for the paper tone and a deep blue for the silver tones. The ambrotype preset includes a border bit I didn’t care for it so I also changed it with the border adjustment tab. I chose the Emulsion #003 and added it and I also changed the width of the edge to something I felt better fit the image. By beginning with my HDR image I was able to show the same detail in the shadow areas as I had in the color image and also control the contrast and highlights. 

 

Angel’s Envy

Posted on by Nick Roberts
Office of the Angels
Office of the Angels

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I really like to shoot buildings that are in a state of deterioration and neglect because they contain so many textures and interesting details. I enjoy the beauty of things as they weather and deteriorate and I strive to share that beauty with the world. The Japanese term Wabi-sabi, which means to appreciate and accept the forces of transience and imperfection and find the beauty that exists in the state of impermanence, is often applied to this type of photography. 

I was down on Main Street last week to photograph the construction taking place as the Ohio River Bridges Project begins to take shape along I-65. While shooting the cranes and the activity around them I also started shooting the Vermont America Building as it exists today. This image is from above the door at the old Vermont America Building which has been closed for many years but will be reopened in the future as Angel’s Envy Distillery. This building is slated be renovated as the main headquarters for Angel’s Envy Distillery.

I used a three frame bracket set of +2, 0 and – 2 EV at ISO 200 to create this HDR image. I processed it in NIK HDR Efex Pro 2 to merge and tone map the image. I also created my own preset from these adjustments so that I could experiment with other versions such as monotone or black and white without having to go through the merging process again if I wanted to try applying them to the image. In the end I settled on this version as the one that best captured my vision for the image. I then returned the merged image to Aperture 3 where I completed the finishing touches such a sharpening and straightening.

 

 

 

 

Forecastle Fun

Posted on by Nick Roberts
Forecastle Blew His Mind
Forecastle Blew His Mind

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Saturday evening I went down to Waterfront Park for the Forecastle Festival. I wanted to capture the frenzy and activity that Forecastle is known for. I opted to shoot bracketed shots of -2, 0 and +2 EV for eventual creation of HDR images of the crowd. I expected blur and indistinct faces due to the slow shutter speeds that were entailed and I was pleasantly surprised by this bracket set that left one man in the scene without his head. I played around with the anti-ghosting setting and finally applied 20% which rendered his head as a faint blur. After tone-mapping the initial merged shots in NIK HDR Efex Pro 2 I returned the file to Aperture 3 for final color, contrast and sharpening adjustments.

Forecastle Fun #2
Forecastle Fun #2

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I applied much the same processing to this image too. I especially like the way the purple light from the water feature illuminated the underside of the bridge and added color to the shadows on the figure in the foreground.

 

Funnel Cake Fourth

Posted on by Nick Roberts
Fourth of July Funnel Cakes
Funnel Cake Fourth

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This past week I attended the Fourth of July event in Louisville’s Waterfront Park to capture some fireworks images. While waiting for the fireworks show to begin I wandered around the park looking for images that spoke to the idea of festivals and the attendant support services that are needed whenever large groups of people gather for a celebration. The sky was leaden with the remnants of our unrelenting week of rain and thunderstorms so I went in search of some color to shoot.

As I strolled through the park I came upon the food vendors area and was immediately drawn to the scene you see here. I liked the graphic quality of the signage and the lights on and in the funnel cake vendor and decided to create a composition that incorporated it. I found a place behind the food wagons that also held some promise of a strong foreground element. I set my tripod up and shot this image because I enjoyed the strong diagonal lines and the contrast of colors between the booths and the park’s water feature. I also liked the way the stainless steel rails contrasted with the concrete and the angles that they created.

I shot a three frame bracket set using +2, 0 and -2 EV to be sure that I had a wide dynamic range to work with. Back at my computer I first took the three RAW frames into NIK Sharpener Pro and pre-sharpened them. I then opened the three images in NIK HDR Efex Pro 2 where I merged them into a HDR image. I applied the Deep 2 preset and then adjusted the amount of tone mapping and contrast to suit my taste. After the initial tone mapping was completed I returned the HDR image to Aperture 3 where I adjusted the individual color channels to bring out the reds and yellows of the signage. I also added some additional adjustments to the contrast and sharpened the image before adding a small vignette to it.