Quote:
Originally Posted by michaellxv
But the image is manipulated to assign false colour so we can see it at all.
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.
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I'm not sure how the stars hide anything. If you remove the stars you have to fill in the gaps with something. This is just false data created by averaging the adjacent pixels. It doesn't reveal anything behind the stars as the data is created in the imaging process.
False colour is added when imaging at non visual frequencies. It is added evenly though. It is not fabricated by averaging nearby pixels.
For example a star image will have the "red" colour of a nebula in it's continuum. To remove the star you have to remove that red part as well and then clone data back into the hole that is created. It just means that a large amount of the data in an image with the stars removed is fabricated data. Not dissimilar to painting a picture Over a photo.
I would rather see side by side images taken at different frequencies ie optical IR, UV, radio etc.
Having said this the starless lmages are still pretty pics but nothing much more.