Search Posts
Categories
Feed
Tuesday
Feb122013

Tagging Surveyor Software Used to Assess Winter Storm Nemo Damage

I'm proud to announce that, once again, my Real-time GPS Tagging Surveyor (RTGTS) software has been used to perform post-disaster damage assessment. The Massachusetts Emergency Management Agency (MEMA) issued aerial photography taskings to the Civil Air Patrol (CAP) to gather information about the damage caused by winter snowstorm (nor'easter) "Nemo".

Take a look at this video of Massachusetts Governor Deval Patrick talking about CAP's involvement (CAP is mentioned just after the 6:03 mark). This comes just a few months after my RTGTS software was used to assess damage caused by hurricane Sandy (read about that here).

Wednesday
Feb062013

JPEG, RAW, Digital, and Film: a Short, Imprecise Comparison

A much debated topic in photography is the issue of RAW vs. JPEG files. Jim Goldstein of JMG Galleries provides an excellent technical comparison of RAW vs JPEG here. The takeaway is that RAW files provide much more detail and dynamic range, but they also require lots of know-how and time to process (or "develop") correctly. JPEG files typically have more "pop" straight-out-of-camera than untouched RAW files.

I've seen lots of discussion and discourse about the advantages of RAW over JPEG all over the internet, but I've seen few direct comparisons. This is a short, informal comparison of RAW, JPEG, and even film, in the same scene and shooting situation.

 

#1: D800 out-of-camera JPEG (lightly edited with Picasa)

Photo #1 is an out-of-camera JPEG taken with a Nikon D800, set to "standard" picture control, with D-lighting off. I massaged the file it a tiny bit using Google's Picasa editor. The adjustments were very minimal (Picasa is a very lightweight editor), took less than 30-seconds, and amounted to a slight exposure correction. As you can see, it looks pretty decent for a mostly untouched file, but both the city skyline and the foreground trees lack shadow detail, and the rest of the image just doesn't look complete or professional.

 

#2: D800 RAW, unprocessed (Adobe Lightroom 4.3)

Photo #2 is the exact same photo as the first, but it's the Nikon RAW (NEF) file, converted directly to a JPEG using Adobe Lightroom 4.3 with no adjustments. As you can see, it looks much flatter than the JPEG. Again, it's a bit underexposed (I did this intentionally to preserve the light-trail highlight of the car tail-lights), but as mentioned above, RAW files contain fantastic amounts of infomation, which make them much more "develop-able". Let's see how that works out on the third image...

 

#3: D800 RAW, carefully processed / developed (Adobe Lightroom 4.3) [click to see it large]

Photo #3 is, again, the same Nikon RAW file. This time it has been carefully adjusted (or "developed") using Lightroom 4.3. I've adjusted the exposure, shadow levels, highlight levels, tone curves, white balance, saturation, color hues, sharpness, noise, and more. I probably spent over half an hour tuning this image to get it to look like this. The result is an image that pops much more than the undeveloped RAW, or even the out-of-camera JPEG. It's an image that I'd have no problem showcasing in my portfolio or handing to a client.

 

#4: Fuji Velvia 100F film [click to see it large]

Photo #4 is is a bit of an outlier since it was taken on film, from the same place, within 10 minutes of the digital photos above. I used a Mamiya 645 1000s medium-format camera, and Fuji Velvia 100F 120 slide film. I had it developed at a local professional lab here in San Francisco, and scanned it using a Canon Canoscan 9000F. Other than some scratch and dust removal, the file is untouched, and it looks fantastic. That's the magic of slide film: not much development required for great looking results. The downside is that slide film like Velvia doesn't have much dynamic range, so the exposure isn't very correctable, and the shadows tend to be clipped. This can be remedied to a certain extent by using different kinds of film when shooting with an analog camera.

 

#5: D800 RAW, processed to look like Velvia (Adobe Lightroom 4.3) [click to see it large]

Finally, we have another digital file. Again, it's the same Nikon RAW (NEF) that I started with in #2 and #3, but I've developed it (using Lightroom) to look more like the Velvia photo: higher contrast, clipped shadows, blues shifted to violet/magenta, and more vibrant colors. The result is another pleasing photo; one which really showcases the flexibility of shooting RAW.

Wednesday
Jan092013

Looking Back at 2012

2012 was a year filled with travel and exciting life events for me. I'm not sure how, but I somehow managed to travel to Los Angeles, London, Vancouver, Poland (Krakow & Warsaw), New York, Rio de Janeiro, Toronto (a few times), Cape Cod, Nantucket, and the White Mountains (NH) - all in the same year. My wonderful wife and I moved from Boston to San Francisco, and in the process we both got to enjoy an incredible drive across the United States, visiting the Grand Canyon, Arches National Park, Death Valley, Yosemite, and Antelope Canyon. I furthered my hobby of sailing, spending the occasional day or evening out on the Boston harbor. I finally realized my aspiration of climbing Mt. Washington in the winter. I was lucky enough to have a friend take me up in his airplane to do aerobatics (for the second time!). Most importantly though, I shared some amazing moments with friends, family, and my beautiful wife.

Somehow everything just came together this past year, and I'm very grateful to have had these experiences. Here's hoping that we all have an amazing 2013!

For the time being, enjoy this selection of some of my favorite photos from 2012 (in no particular order).

Obligatory Perspective, Extraordinary Bridge

Sunset, Delicate Arch

Port Tack, Boston Harbor

Favela Chácara do Céu

Unusual Attitude

Beautiful British Columbia

Grand Canyon

Happy 2013!

Monday
Nov122012

Tagging Surveyor Software Used to Assess Hurricane Sandy Damage

The Federal Emergency Management Agency (FEMA) has been issuing post-hurricane aerial photography damage assesment missions to Civil Air Patrol (CAP) volunteers across the Eastern seaboard. I'm happy to announce that CAP is utilizing my Real-time GPS Tagging Surveyor (RTGTS) software, with great success, to complete these taskings.

You can see the results of the damage assesment on FEMA's "Check Your Home" website. Here's an example image, with the EXIF information showing RTGTS v.2.5.1 used in the software line: [EXIF via regex.info] [original]

I live on the West coast now, so I felt very helpless when Hurricane Sandy struck. I'm glad that I was able to help the recovery efforts, even if only in this small way.