Image Stacking: 8400 Images – Day and Night in the City

Using our recent tutorial on image stacking it is possible to stack images from both day and night to create a single image of the city skyline over time. The photograph below consists of 8400 images taken using a Go Pro HD with one image every 5 seconds. The streak of light to the left is the moon during the night time sequence, while the right hand light is the daytime sun. The small lights are aircraft during the evening:

You can view a higher resolution version on our Flickr Stream, we will have more on the Go Pro HD next week, including a tutorial to create 24 hour+ timelapses.

Author Bio

Andy is Professor of Digital Urban Systems at the Centre for Advanced Spatial Analysis at University College London.


  1. Achim - March 7, 2010

    Interesting technique. Maybe one could add some sort of “base-image-subtraction” to show the movement only?
    Talking about 24h plus timelapses:

  2. Smithee - March 7, 2010

    Thats a nice timelapse – i like the change in the scene over the day and the movement of the ships…


  3. Slate PC stands - March 8, 2010

    Yup it’s a nice technique but it looks too bright. I think it could be more eye piecing. BTW nice tutorial. I have checked it out and I must say it’s excellent.

  4. Achim - March 8, 2010

    Due to the slow but steady movement ships are perfect for timelapse videos. Btw. I used Cam4you to capture the frames which is quite a nice tool for everyone who uses canon cameras:

  5. cameryn - January 28, 2013

    Im am very new to the whole photography world but loving it. This is exactly what im trying to do with my Gopro 3 black but have no idea how to, please please can you give me any info on how to do this. Thank you so much.

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