CombineZP vs focus-stack

CombineZP is a Windows focus-stacking program that combines focused regions from multiple photographs into an image with greater depth of field. Its documented methods include Do Stack and Pyramid Maximum Contrast. It provides quick and thorough image alignment, with rotation correction in thorough alignment. Batch processing can stack images, and users can adjust memory use for image sets that demand more from the computer. Macro parameters are editable for additional control over close-up stacking. JPEG is the documented output format. The program is free and the repository identifies its license as GPL-3.0. The repository preserves code originally created by Alan Hadley and shared under the GPL; it contains CombineZ5 and combineZP directories, a README, a license file, and an installer. The README refers to a compiled Windows x86 version 1.0, updated January 27, 2012, in a file named combinezp.msi. The repository says it is kept for posterity, lists no published releases, and a microscopy tools page describes the software as not maintained. Windows is the listed platform; a third-party microscopy tools page also says it works with Wine on Linux.

focus-stack is a free desktop program that combines photographs taken at different focus settings into an image with extended depth of field. For each pixel, it selects the sharpest source image, a method documented for uses such as microscope photography. The tool can resize and rotate stack images to align them, or alignment can be skipped or adjusted. Outputs include a focus-stacked image, an optional depth map, and a 3D preview based on that map. Input formats supported by OpenCV include JPG, PNG, and TIFF, while the filename extension determines output format. Processing controls cover denoising, consistency filtering, batch size, and thread count. OpenCV’s OpenCL interface provides GPU acceleration when available, with an option to disable it. Binary packages are listed for Windows 10, Ubuntu 20.04, and Mac OS X. The project is MIT licensed; Linux builds require OpenCV 3.0 or newer and basic build tools.