You need to upgrade your Flash Player The theme of this blog is not only and obviously space, but in particular “terrestrial worlds”, places that tend to have surfaces on which one could walk or at least attach oneself to. These places sometimes also have other earth-like familiar features such as atmospheres, weather, volcanos, geysers and perhaps, we are finding, even exotic oceans, rivers or lakes that are not necessarily made of familiar materials we are used to here at home. The second theme is imagery. Occasionally I do some retouching of images when needed if an image is incomplete or sometimes “dirty” or noisy. I will attempt to correct image shortcomings based upon other images or well-accepted presumed attributes. When this is done, notes will be offered as to what was added, why and sometimes how it was done. This way no one should ever wonder if something they are looking at is real or photoshop.

Dione: A Quick Composite

High Resolution Composite of Dione

I noticed some recent images taken of Dione would make a nice hires if one were to stitch them together. Of course, these images were each (4 of them) taken at different times and therefore, the cassini spacecraft was at different vantage points (see the original 4 images below).

Dione in four exposures

So matching them up is not quite as simple as lining up a few repeat details from one to the next, but photoshop gives one some powers of distortion to make up for some of that. The biggest issue was the disc edges – for when they didn’t match up (and they didn’t) all there was for me to do was to draw a circle and erase. I cannot match the technical skills of some of the freelance imagers that I have featured on the right, but its fun making myself a nice large scale image of one of Saturn’s larger moons.

2 Responses to “Dione: A Quick Composite”

  1. Rob Says:

    The site looks great. Don’t forget, it’s Space Week. Doesn’t their type look a lot like ‘Chop Shop’?

  2. thomas Says:

    ladies and gentlemen… mr karimi. good to see you here sir.

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