As a budding astrophotographer, I find my results are still largely hit or miss. Sometimes the standard procedure of stacking multiple exposures to randomize the noise and boost the signal works great, and other times the stars themselves get washed out by the process. Stacking the layers accurately can be next to impossible when shooting at high or low celestial latitudes because the image has to be rotated as well as laterally shifted. Moreover, the center of rotation (a celestial pole) is usually far outside the actual image.
But here's an idea: What we could just duplicate a single exposure, but somehow randomize the noise from one copy to the next? That would eliminate the need to stack different exposures.
Is there any software that can do this?