focus-stack vs PICOLAY

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.

PICOLAY is a free Windows program for improving images made from picture series. Its focus-stacking process combines sharp areas from photographs taken at different focus levels in a z-stack. From stacks, it can generate depth maps, 3D projections, stereo images, hologram views, and 3D animations. Editing tools cover resizing, color and sharpness adjustments, filtering, rotation, flipping, painting, cloning, text, and scale bars. It can align displaced stack images by their x and y positions and harmonize their brightness. PICOLAY runs without installation and can be copied to a folder or USB stick. Downloads include 64-bit versions and a 32-bit ZIP version. The download page labels the current release Version 2026-09-29 and lists AI-supported builds. The maker says some antivirus programs may flag the download because distribution is limited and its reputation score is weak. PICOLAY is offered as-is without warranty and may be used freely for non-commercial purposes. Manuals are available in five languages, with tutorials and FAQs linked.