What NASA’s image cannot show, however, are the stark differences between those who do have lights and those who that live without any lights at all at night. This gridded equal- cartogram shows the satellite image resized according to how many people live in an area. Satellite images continue to amaze us with their unique perspectives that most of us will never experience by ourselves. NASA’s Earth at night is a very recent image taken by satellites as a series of several separate post-processed images that provide a consistent clear sight of the night views of all human and natural matter that glows and can be sensed from space. The OpenGL renderer seems preferable for screen displays, whereas the Zbuffer renderer seems better for image captures such as printing to a JPEG file.įor details on how to create the underlying image, and for higher resolution satellite imagery, please contact the author.Some of the most iconic views of our planet have been made from space.
Using the SATGLOBE function, the command syntax for this image was: I do not have the image processing toolbox, but I presume this could easily be accomplished with that instead. Rendering can be as much art as science, and so graphic design aftertouching on the brightness, contrast, and specular point anomalies was done using standard image editing software, after the image was created in MATLAB. The image data was obtained from NASA the map projection, political boundaries, and gridlines were created using the Mapping Toolbox. This screen capture was rendered with OpenGL, using a camera light at infinity and specified diffuse and ambient material reflectivities. Using the figure file satglobe, which I will upload into the MATLAB Central File Exchange shortly, you can generate fully rendered, rotatable, zoomable views of earth as seen from space.
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