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De-Bayering or Dithering problem?


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I've been imaging the rosette (6x5 min subs) and I'm getting a linear pattern to the background.


Capture is via Maxim and I'm employing a dither of < 2pixels between exposures. No filteres have been used and the DSLR is unmodified.


Images have not been de-bayered, simply registered and stacked in PI then processed in PS-CS3.


My thoughts are that there is a resonance between the dithering and the rows/columns of pixels on the CCD. But it may be that I need to de-bayer the images?


Can anyone throw a light on this please




Part of a single sub:


Edited by fwm891
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