focus-stack: focus-stack (Fast and easy focus stacking) focus-stack: focus-stack: focus-stack takes a set of photos taken at different focus settings focus-stack: and combines them into one, selecting the sharpest source image for focus-stack: each pixel position. This is commonly called extended depth of field, focus-stack: or focus stacking. Typical use is for microscope photography where it focus-stack: is difficult to obtain large enough depth of field to cover the whole focus-stack: subject. This application uses OpenCV library and its OpenCL focus-stack: acceleration interface. focus-stack: focus-stack: