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Posts Tagged ‘Visualization’

Learn Ansel Adams’ Biggest Secret for Stunning Photography – Visualization

22 Jun

Ansel Adams is the most widely known photographer in history, you don’t need to look very far to see one of his images. Would you like to know the whole key to Ansel Adams’ stunning photographs?

This is a photograph of half dome in Yosemite taken in 1927 by Ansel Adams

Monolith, The Face of Half Dome, by Ansel Adams (Image courtesy Ansel Adams Illumes and The Ansel Adams Gallery)

In this this video interview with his son, Michael Adams, you will hear about his breakthrough as a photographer, when he went from merely recording an image, to being an artist who interpreted the image to tell the story he wanted.

As you’ll hear, Ansel had his breakthrough when he climbed up to take a photograph of Half Dome, the iconic monolith in Yosemite, California. The moment he realized that the yellow filter just wasn’t going to convey what he saw and felt, he changed to a red filter which expanded the tones of the image and brought out the darkness of the sky, thereby creating the mood he had visualized.

Ansel said, the whole key lies in first visualizing the image you want, rather than just snapping away.

By first forming the image or idea in your mind’s eye, you can then set about to capture it. His son Michael summed it up with, “He knew what he wanted and he got what he wanted.”

These are Ansel’s’ key points that you can practice to continually improve your photography:

  • Look at the external event, and then visualize what you want it to look like, clearly and decisively.
  • Try to make the photograph of what you saw and felt.
  • Train yourself to see what the camera sees by comparing what you see, with what it looks like in the camera.
  • Practice your craft and do your homework so you can make the photograph you desire by going through these steps to capture what you visualized.
  • Placing the camera: Find the best point of view of the lens.
  • Make a proper lens selection.
  • Decide on your depth of field and set your aperture.
  • Control your exposure and later, the development.

As he said, with practice this becomes automatic and instinctive. Put Ansel’s advice into action and let me know your results in the comments below.

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The post Learn Ansel Adams’ Biggest Secret for Stunning Photography – Visualization by Marc Silber appeared first on Digital Photography School.


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Countdown to PIX 2015: Rick Sammon and creative visualization

03 Oct

With less than a week until PIX 2015, we think you should meet some of our talented re:FRAME speakers. Rick Sammon is a veteran wildlife and travel shooter who has made it a focus of his career to help educate and inspire new photographers. Read more

Articles: Digital Photography Review (dpreview.com)

 
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Visualization Vids: Moving Data Make Marvelous Movies

15 Nov

[ By Delana in Art & Photography & Video. ]

Raw data, as interesting as it may be to the scientists and analysts who use it, simply isn’t very interesting (or understandable) to the rest of us. In order to get the general public truly excited about some bit of trivia, a set of facts and figures, or an unusual trend, you’ve got to dress it up a bit and give it a little flash. That’s just what the makers of these films did. Their short movies all illustrate data sets, but not in a boring, overtly scientific way. These data are presented with the help of some cool graphics and/or video that make them not only informative, but downright fascinating.

The Size of the Known Universe

According to the incomparable Douglas Adams, “Space is big. You just won’t believe how massively, mind-bogglingly big it is.” Its massive size is almost impossible for the human brain to comprehend, but that doesn’t mean that humans will ever stop trying to explain and illustrate it. This film from the American Museum of Natural History shows every known part of our universe, starting on Earth in the Himalayas and expanding to view stars, planets, asteroids, quasars, and a whole lot of dark, empty space.

The Biggest Stars in the Universe

As difficult as it is to imagine the vast size of the universe itself, it is nearly as hard to visualize the size of individual stars. The relative sizes of the planets in the solar system are explored first for reference before the video zooms out to show the inconceivably massive known stars. Starting with our own Sun – which, by the way, looks impressively large compared to the planets – the stars just get larger and larger until even the largest planet in the solar system is completely dwarfed. It’s a humbling reminder of just how tiny our planet is and how vastly minuscule every one of us is in comparison to the rest of the universe.

Asteroid Discoveries – 1980 to 2010

As our space observation and exploration tools have grown more and more sophisticated, we have been able to gain unprecedented glimpses into the universe around us. This video examines the pattern of asteroid discoveries beginning in 1980, showing exactly how our technology has continually advanced to allow more frequent discoveries, further and further from Earth.

1000 Years of Worldwide War in 5 Minutes

Although the data used for this video is somewhat biased, the visual representation of 10 centuries of war is still remarkable. Each explosion represents a military conflict, with the size of the animated explosion and associated label representing how many died in each war.

The Decline of Empires

Along with war and conflict has come the natural ebb and flow of the world’s empires. This video gives an interesting look at how the great world powers of the 19th and 20th centuries changed – with an emphasis on their downfalls. Year by year, the empires grow, shrink, break off into factions and sometimes disappear altogether. Just like in today’s world, these empires were in a near-constant state of flux – although the data represented in the video make that time period look much more volatile than our own.

Every Nuclear Explosion since 1945

A haunting depiction of a terrifying subject, this short film from artist Isao Hashimoto shows every nuclear explosion in the world since the first one occurred in 1945. The film also shows which countries were behind the blasts, illustrating just who in the world has the most nuclear firepower. The video is strangely beautiful, but of course very scary. The final blasts of the video are in Pakistan in 1998 – given the doubts about the legitimacy of the alleged nuclear tests performed by North Korea in 2009, they were not included.

Scientific Visualization of the 9/11 Attack on the World Trade Center

This scientific animation is difficult to watch, but it is an interesting look into how the planes struck the WTC buildings on 9/11 and what happened immediately after the impacts. The video was created by scientists and engineers at Purdue University as a scientifically accurate depiction of those tragic events.

Light Traveling at One Trillion Frames per Second

The Media Lab at MIT developed a new imaging system that is capable of recording images at one trillion frames per second – which is fast enough to record a burst of light traveling through a one-liter plastic bottle and reflecting back toward the source.

Worldwide Android Activations

When the open-source Android operating system was released, the world immediately took notice. The first Android-powered mobile phone was released in October 2008, and between that time and January 2011 millions of Android devices were activated all over the world. This video maps out all of those activations from that time period, calling attention to which parts of the world are most into Android.

Radiohead’s Data-Only Video

Radiohead is an innovative band that has tried some rather unconventional things during its long run of popularity, so this unique video should come as no surprise to fans. No lights or cameras were used in the music video for the song “House of Cards;” rather, the images were created by 3D plotting technologies measuring info about the shapes and distances of objects – namely, Thom Yorke’s beautiful singing head.


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[ By Delana in Art & Photography & Video. ]

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Visualization of Quick sort

20 May

This video was created for www.zutopedia.com It demonstrates two comparison sorting algorithms Bubble sort and Quick sort. Comparison sorting algorithms are only allowed to ‘see’ the data through a sequence of pair-wise comparisons, therefore they are applicable to any type of comparable objects: numbers, strings, colored balls, etc Bubble sort is very simple but has poor performance. A comparison sorting algorithm’s performance is usually measured by the number of comparisons it makes. Bubble sort performs on the order of n^2 comparisons to sort n elements. Quick sort is only slightly more complicated but usually performs much better (as demonstrated in the video). It performs on average an order of n log(n) comparisons to sort n elements. This is much lower than n^2 for large values of n. However, if the algorithm makes some ‘unlucky’ choices it might require n^2 comparisons after all. Other algorithms exist that guarantee the number of comparisons will not exceed n log(n), however, in practice Quick sort usually out-performs all other comparison sorting algorithms due to its simplicity. If other operations other than pair-wise comparisons are allowed, then a broader range of algorithms can be used. Some of them can perform much faster than Quick sort, but they are limited to a particular type of elements, eg, numbers is a certain range.
Video Rating: 4 / 5