Non-destructive image stacks blend together a series of images based on the same scene or almost identical subject matter. Visual differences between images in the series can then be removed, composited together, or used for creative effects.
Use image stacks for:
A choice of operators can be applied to your stack depending on what you want to achieve. Median can be used for most blending operations such as object removal, exposure merging (exposure blending) and noise reduction.
Your images are blended and presented in a Live Stack Group in the Layers panel. You can manually align layers if auto-alignment isn't 100% accurate.