GDV P.4.2.2. Time-based image collection

The Generative Design book gives the following summary of this assignment: ‘In this example, the inner structures of moving images are visualized. After extracting individual images from a video file, this program arranges the images in defined and regular time intervals in a grid. This grid depicts a compacted version of the entire video file and represents the rhythm of its cuts and frames. To fill the grid, individual still images are extracted at regular intervals, from the entire length of a video. Accordingly, a sixty-second video and a grid with twenty tiles results in three-second intervals.’ Here is the original program.

I have put all images I made during this assignment on a Flickr page. I decided not to join the movie-files I used. So instead I added the Processing files if you click a thumbnail on the loftmatic page which you can find here. You might use your own movie-file to get comparable results.

After doing some tweaking of the program I had to find some video footage. Although we have lots of video-material from our documentaries and animation-films it is a lot of work to find real good footage. It takes a lot of time because you have to go through every DV-tape. And while doing that it might turn out that there was nothing useful on the tape. So what is the most easiest way to get some footage. The iPhone! I still got a stunning 3GS. And I have never used the video-function. So this might be a good opportunity. But what do I film? Lets start with the most colorful news-broadcaster of the world. CNN! Took me a few minutes to get some footage. Interestingly enough I filmed upside down. There is no image here. All the images are on the Flickr page. This link takes you to the Processing code. And that is also true for all next links on this page.

I do another one. Ah… that looks better. I specially like the footage which has typography in it (but that is my abnormality). So what file size is that movie? Its 7.6Mb. Might be that I have to reduce that with Compressor or Final Cut Pro.

That works fine. The whites are a bit bleached out but its fast.

What about changing the format. Let’s double TileCountX and TileCountY. Oh… that is even better!

Can I double that again? Sure it does. TileCountX = 48. TileCountY = 64. That is about 3072 frames. And the final image of all those 3072 frames together is getting better every time. It is also getting more a kind of structure. And it is getting less recognisable. It is also taking more time to compose the final image. This one took about 5 minutes o complete. P_4_2_2_01_GDV_05

Checked if it was possible to rotate the total image. Used footage from a 1960’s NASA film.

Lift off of Apollo 11. First in 18 x  24. And once in 36 x 48. But wat if I double that again. Seems just to work. Although there is not much to see anymore. The footage has just disappeared into a lot of tiny rectangles. It looks almost if it has 3D-ish qualities. It took almost 14 minutes to render.

Apollo 10 footage. Above the moon and filmed from the Lunar Module. P_4_2_2_01_GDV_08

Apollo 10 spacewalk.

Apollo 11 landing at sea. And I made a typo which might give me more ideas to make the next five programs.

Continuing with checking if my typo still works. I made a mistake while defining the variable TileCountX. Instead of 36 I filled it with 368. A lot of strange things appear in the display window. So I stopped the process. But now I make TileCountX 400 and let it run. This image took 14 minutes to complete.

TileCountX = 400 and TileCountY = 4. It does weird things to the original footage. P_4_2_2_01_GDV_12

What happens if I make TileCountY just 1 pixel and TileCountX 800? Amazing! P_4_2_2_01_GDV_13

Swap the content of TileCountX and TileCountY.

And now for an maximum stress test. TileCountX = width and TileCountY = height.Processing has to calculate 640.000 pixels. It started at 13:51. To complete 800 pixels in a row it takes about 2 minutes. After one hour I have cancelled it. It Hardly makes any progress and the image that is going to be delivered seems to get not very interesting. Another attempt. It took 56 minutes for Processing to render.

Just put everything on an 45 degree angle. Put to fill and 800 x 800 screen Processing needs to render an image of 1150 x 1150. Otherwise it leaves black corners in some place or another.

Kept the angle of 45 degrees but put TileCountY on 2. So the screen will be divided into two triangles.

Rotated the image for 90 degrees. Which gives an interesting effect. Processing renders a kind of small blocks. I wonder when I switch off the rotate function if the effect is the same. Yes it is still rendering little blocks. Maybe I have to increase TileCountX? It did not work out.

Interesting things are going on here. Organised chaos.

I did not change much here. Made TileCountX 2400 but it did not do much for the image quality. I just rotate the image for 270 degrees because I like it better when its upside down. That was a mistake. Processing rendered it horizontally but I think I like this even more.

Ah… There is an extra program in the Generative Design folder. The time-lapse camera. After each intervalTime a picture is saved to the sketch folder. That seems to give me some problems. Let’s try to solve them step by step. When running te program Processing says: ‘There are no capture devices connected to this computer.’ We need a camera. The camera is now attached. Processing says: ‘NullPointerException’ in the message area. And beside of that it gives me a lot of junk in the console: ‘2014-10-07 11:46:12.660 java[28975:10003] Error loading /Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio:  dlopen(/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio, 262): no suitable image found. Did find: /Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio: no matching architecture in universal wrapper 2014-10-07 11:46:12.661 java[28975:10003] Cannot find function pointer NewPlugIn for factory C5A4CE5B-0BB8-11D8-9D75-0003939615B6 in CFBundle/CFPlugIn 0x7fef1c115350 (bundle, not loaded) name=DCR-PC110E,size=720×576,fps=30 name=DCR-PC110E,size=720×576,fps=15 name=DCR-PC110E,size=720×576,fps=1 name=DCR-PC110E,size=360×288,fps=30 name=DCR-PC110E,size=360×288,fps=15 name=DCR-PC110E,size=360×288,fps=1 name=DCR-PC110E,size=180×144,fps=30 name=DCR-PC110E,size=180×144,fps=15 name=DCR-PC110E,size=180×144,fps=1 name=DCR-PC110E,size=90×72,fps=30 name=DCR-PC110E,size=90×72,fps=15 name=DCR-PC110E,size=90×72,fps=1… so… I think I’m running into a technical problem which might cost me a lot of time. Knowing that I stop this session and continue with the next program.

Henk Lamers


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