image stacking

Image stacking is a technique where multiple photos of the same scene are combined into a single image. By doing so, it enhances details and reduces noise, which appears as graininess. This process involves aligning the images precisely and then merging them, averaging out random variations like noise while emphasizing true details. It's commonly used in astronomy, astrophotography, and macro photography to capture clearer, more detailed pictures of faint or distant objects. Overall, stacking leverages the power of multiple exposures to produce a higher-quality final image than any single shot could achieve alone.