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Time Lapse with Daffodils

Posted on February 20, 2014May 16, 2014 By Tom No Comments on Time Lapse with Daffodils
Gear, Photography
Depth-o-Fields
Depth-o-Fields

Last weekend I tried setting up a back yard time lapse to see if I could capture the water rising when the beaver rebuilt his dam. Well, the beaver did rebuild, but I wasn’t able to catch the activity. I didn’t even get to catch the water rising. However, I did promise to post the results, and here they are…

As seen in the video, there’s a long stretch of nighttime, and that’s when the water rose. It’s low when the video starts, then when the image comes back in the morning, the water comes back up. Oh well. You can see the neighbor’s huge television from across the lake flickering in the upper left corner in the nighttime shots.

Since that failed so resoundingly, I decided to try another target, one a bit closer to the lens where action could be observed more clearly – daffodils in bloom. I moved the Raspberry Pi rig to a clump of daffodils and set it to run at one frame every five minutes, the same I used for the beaver dam time lapse.

image
NOTE: This photo was taken at the END of the sequence, after the flowers had bloomed.

I let the routine run, monitoring it closely from inside.  I had noticed a lack of sharpness in the image in my last attempt.  I had even bigger problems this time.  The HUE webcam would not adjust to bright sunlight.  Many of the images were completely washed out, as in these two examples:

Raspberry Pi Washed Out 2
Raspberry Pi washed out 1

Even when the lighting was good, the flowers themselves were out of focus.

Raspberry Pi not in focus

The best images were captured either early morning before the sun even came up, or late afternoon. Even some of the night shots were OK when we had the backyard light turned on. I kept at it, though. The camera ran for a total of four days, and captured nearly 1500 images.

Regardless of problems, I made a time lapse of ALL of the images, including the washed out images and the ones taken at night. You can still see some cool movement and flowers opening – shades of things that might have been, had the camera cooperated. It’s interesting to note that the flowers open, then close at night, then re-open. These appear to be jumping around, but the images are, in fact, in the correct sequence.

I went back and tried to eliminate the images that were completely unusable. Some of those that remain are still washed out, but as long as I could see the flowers, I kept them. It didn’t really improve things, and made the video appear even more disjointed.

The other thing I failed to take into account was the fact that flowers grow. They get taller. In fact, they almost grew out of the frame. I knew I’d have to compensate for that on the next attempt.

Speaking of the next attempt…

I found another clump of flowers in the front yard that are starting to bloom. These are on the north side of the house, so they don’t receive direct sunshine. Lighting should be much better, and I shouldn’t get the washout I did with the ones in the back yard.

image

The image even appears to be more in focus this time.

New Time Lapse Target

I’ll let this run and see what results I get. One thing I have definitely learned is that the HUE cam is best suited for use inside a classroom as a document camera. At least it was free. I’ve got a couple of other webcams, and I may see if I can get better results with them.

Tags: Daffodils Photography Raspberry Pi time-lapse

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