A typical result from stacking 28 exposures, each 3 minutes long, with Deep Sky Stacker (DSS). With deep sky astrophotography, this stacked image can be surprisingly dark, with only a few bright stars visible. This scheme illustrates the essence of image stacking.
With image stacking, you have combined all your light frames (the actual images of the sky) into a single image with an enhanced signal-to-noise ratio. What Histogram Stretching Is And Why You Need It Of the steps mentioned above, it is worth to spend a few words on the Histogram Stretching, as it is of utmost importance in deep-sky astrophotography. In astrophotography, the post-processing includes steps that are crucial to the quality of the final image.
4) Conclusions What Does Post-Processing Mean In Astrophotography?
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