Quote:
Originally Posted by Terry B
Yes it is.
If you image at radio frequencies for example, you don't remove part of the image that is being produced at the same frequency with a photoshop technique.
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But the image is manipulated to assign false colour so we can see it at all.
Quote:
Originally Posted by Terry B
I must admit I don't like the photoshopped images with no stars. They look like nice artworks but could as easily be made with a paint brush on canvas and be just as relevant as astro images.
Why not add in areas of red nebulocity to a globular cluster to "enhance" it?
Not really any different to removing bits of image to enhance it.
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Given the amount of post processing required to produce any image it could be said that they could all be produced without ever using a telescope of camera.
I think it is quite valid to remove stars which are not part of the subject but are in front of it from our line of sight.
Quote:
Originally Posted by Terry B
Each to their own I suppose.
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Removing stars from a subject which has them is personal taste, and IMO the absence of stars can allow the image to show structure which is hidden. I would prefer to see both images side by side for comparison.