ImageFocusCombine

ImageFocusCombine[{image1, image2, ...}] combines differently focused images of the same scene to obtain a single well-focused image.

Examples

Combine focus-stacked images:

images = {nearFocus, midFocus, farFocus};
ImageFocusCombine[images]

Focus stacking for macro photography:

ImageFocusCombine[Import /@ FileNames["focus*.jpg"]]

Please visit the official Wolfram Language Reference for more details.