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Background: This question is largely inspired by one of the answers in: What limits the size of digital imaging sensors?

So the answer mentions uber-large image sensors that are made by "quilting" or "tiling" smaller CMOS sensors in a single silicon. Now, I've seen quite a few astronomy images that uses this kind of humongous sensor.

One of the example image is this: enter image description here

Question: How can you eliminate the horizontal and vertical strips of missing photo? Is this kind of thing even possible or the astrophotography photos are heavily photo shopped?

  • What is the source of that image?? – Digital Lightcraft Jun 29 '15 at 15:15
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    If you move on to the "Data Handling" page in the above link, it states: "The images from the four cameras are then compared with each other to remove spurious effects such as cosmic rays, gaps between CCD cells, and bad pixels, and a composite image is calculated based on the four subimages and corrected for measured variations in atmospheric seeing." – Digital Lightcraft Jun 30 '15 at 8:34

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