photography

Post image for Photographing SFO with BlackBerry Torch

Photographing SFO with BlackBerry Torch

by alec on October 1, 2011

I’m an enthusiastic amateur photographer.  Part of my enthusiasm comes from being married to an art photographer, and part of it is fascination with the creative process in the digital age. So, I like to think that I might occasionally take a decent photograph (check out my flickr stream).

Last week I was strolling through the SFO International Terminal on my way home after a couple of days at the GigaOm Mobilize Conference, and at the RIM Redwood City offices.  It was late in the day, and the International Terminal was empty – a lull period between the late day flights to Asia, and the redeye flights back to the east coast of North America.

I didn’t have my Nikon DSLR with me, so I snapped the image above with the new BlackBerry Torch 9810.  The BlackBerry is a pretty simple camera, but surprisingly versatile.

This image is actually a composite from 3 images stitched together in Photoshop Elements. I stood at the centerpoint in the image, and slowly rotated left to right snapping images, which I then merged later. The original images are these three (click on any of them if you want to see a larger version):

IMG-20110927-00029

IMG-20110927-00030

IMG-20110927-00031

All three images are quite noisy.  Noise, in photography, refers to chromatic or pixel distortion that occurs when the picture is taken.  It’s a very common problem with snapshot cameras, especially in low light, and my BlackBerry is no exception.

On my first attempt to stitch the photographs together, I noticed clearly visible bands as a result of the first photograph being quite a bit noisier than the second.  So, I used PictureCode’s Noise Ninja filter to clean it up.  Here’s an enlarged before and after from a section of the terrazzo floor in the first photo so you can see the difference.  The noise reduction removes some detail, but it also gets rid of the graininess of the original.

image

image

Next I used Photoshop Elements “merge panorama” tool to create the composite image.  Now, there are a number of settings you can use on this tool.

If you use the defaults, you’ll get an image like this:

image

There isn’t a lot of usable photograph in this merge, however.  So I generally add the “remove vignette” and “correct geometric distortion” settings which results in an image like this:

image

The corrected image has much more usable picture in it than the uncorrected image.  Plus, I like the slightly curved distortion that it has introduced into the photo.  It gives the impression that it was taken with a wide angle lens.

After that, the remaining adjustments I made included:

  • brightening the image by about 20%
  • adding a warming filter.  Elements has a feature that allows you to imitate the effect of an old-skool glass filter, and in this case I chose an 81B, which compensates for the bluish cast of fluorescent lighting.
  • bumping saturation by 10%.

Then I straightened, cropped, and uploaded.

And this was the final result (click on it to see a larger version).  It turned out pretty well, and more than a few people have been surprised that it was taken with a BlackBerry.

SFO 3 copy

So next time you’re wandering around without your SLR, and you see something interesting, just snap it.  You won’t be disappointed.  You can take great pictures with a camera that’s as simple and easy to use as the one in my BlackBerry.

Enhanced by Zemanta

{ 3 comments }

People who know me know that I’m a photo geek.  I love great photos, and I like to flatter myself that occasionally I might even take one or two.

Every photographer has encountered the problem that Lytro (unveiled yesterday) solves – an incorrectly focused image.   Lytro’s innovation is to place an array of “micro-lenses” in front of the main sensor in the camera, capturing the “light field” of the image, rather than just the image itself.  Practically, that means:

  • The focal point and depth of field of the image can be changed after the picture is taken.  For photographers, it’s a mind blowing piece of technology, as it does away with the entire process of choosing aperture and focal point at the time of shooting.  Now one can simply capture the image, and choose the focal point later.   This has applications in portrait, action and macro photography.
  • Better images can be captured in low light, without resorting to the use of a flash.  This is because the micro-lens array uses wide aperture settings, reducing image noise common in low light settings.   Landscape, night time, and indoor photography can all benefit.

Check it out. In the image below, click each of the scuba tanks, and then the diver in the background to see the focal point of the photograph change.


Lytro.com / Jason Bradley

Founder Ren Ng’s PhD dissertation won the 2007 ACM Award, as well as Stanford University’s Arthur Samuel Award for Best PhD dissertation.  The math and the science behind this technology make for a fascinating read.

Ng’s thesis highlights the one inherent limitation in the micro-lens approach as well – micro-lens photography uses enormously more photographic sensor resolution than conventional photography in order to achieve the same image size.  In Ng’s dissertation, the prototype camera was capable of producing images  just 296 x 296 pixels in size.  He writes:

the ideal photosensor for light field photography is one with a very large number (e.g. 100 mp) of small pixels, in order to match the spatial resolution of conventional cameras while providing extra directional resolution.

You can see this in the image above, and the other sample images that Lytro has published on their site.  Simply use the control on the bottom right side of the image to zoom the image to full screen, and then pick a background object as the focal point.  The images have a soft quality about them, due to the lack of pixel resolution.

Lytro is bringing this technology to market, later this year, in a consumer point and shoot format. Their concept is that ordinary people will be able to simply shoot a photo and correct it later, producing results akin to those of a high end SLR in the hands of a professional. And because most consumer photographs are shared online, the resolution limitations of the technology shouldn’t be as important.

I’m a skeptic, I’m afraid.  I think Lytro’s market choice is a pragmatic attempt to fit an early stage technology to a market. Consumers, however, mostly don’t care if their photographs aren’t perfect.  Most consumers don’t edit, color correct, balance light or contrast, etc despite the fact that there is plenty of good and inexpensive photo editing software available.  Consumers point, shoot and upload.

I think the biggest market for Lytro’s technology will be professionals – photographic journalists, commercial photographers, artists, the scientific community and others for whom the requirement to have correctly composed and focused images is of paramount importance. Professionals arrive at a shoot with an array of lenses and camera bodies in order to manage the problems that Lytro eliminates. They then shoot hundreds of photographs knowing that 90% of the photographs they take will be unusable. Lytro could potentially save these folks thousands of dollars in equipment costs and time, and allow them to take many more usable photographs in a single session.  However, until 100MP and 200MP sensors are available at affordable price points, these applications will have to wait.

If Moore’s Law is to be believed, we should only have to wait another 3 to 5 years for those sensors to become available.

Enhanced by Zemanta

{ 0 comments }

Black Toes, Bruises and Blisters on the Juan de Fuca Marine Trail. Lessons for start-up founders.

August 15, 2010

As the West Coast Trail Express sped off into the distance early the morning of July 31, I realized I’d made a terrible mistake. “I’ve forgotten my poles,” I said to Janice.  “They’re sitting in my parents foyer back in Esquimalt.” I’ve used trekking poles when hiking for the past 15 years.  You can go [...]

Read the full article →

The first digital presidential portrait

January 15, 2009

In the category of well worth noting – the first digital presidential portrait.  George W. Bush’s would naturally have been taken with a film camera, as it was taken eight years ago, which is an eternity in the tech business.

Read the full article →

Howling at the moon

May 29, 2007

 It was a near full moon tonight, so after a quick dip in the pool I grabbed my tripod and camera and shot a few pictures of the moon with my long lens.  On the automatic settings on the D50, it just produced an overexposed white disc, but after stopping the camera down 5 (!) I [...]

Read the full article →
Alec on LinkedIn Alec on Twitter Alec on Facebook Calliflower on Youtube RSS Feed Contact me