ON1 Photo RAW vs OpenPano

ON1 Photo RAW is paid desktop software for photographers who want RAW processing, editing, organization and export in one application. It supports batch editing, layers, masking, AI retouching and cloud sync, and browses files where they are stored while providing tags, albums, stacking and AI keywording. Built-in AI tools include NoNoise AI, Resize AI, Generative Erase, Sky Swap AI, Restore AI and Brilliance AI. Super Select AI, subject and background masks and AI depth masks target specific areas. Optional connections are listed for Photoshop CC, Photoshop Elements, Lightroom Classic, Apple Photos and Affinity Photo; MAX adds Adobe Photoshop and Lightroom plugins. Restore AI uses cloud processing, and ON1 says submitted photos are not used to train models. The standard edition installs on two computers, MAX on three, and subscriptions on up to five, depending on plan. A 30-day trial is available, with no free plan.

OpenPano is a free C++ program for automatic panorama stitching, written from scratch without computer vision libraries. It offers cylinder, camera estimation, and translation modes, each with requirements for image capture or ordering. Its listed techniques include SIFT features, RANSAC-based homography or affine transformations, focal estimation, bundle adjustment, and straightening. The program supports Linux, macOS, and Windows. Build instructions use CMake and make for Linux, macOS, and WSL, and describe a Visual Studio 2015 process for Windows. Eigen and FLANN are build dependencies; libjpeg and CImg are optional image input/output components. The README recommends manually downscaling images of four megapixels or more to save time. Wide-angle images with heavy distortion may not work well unless camera parameters are used to undistort them. Memory use can be large with the default libc allocator; LAZY_READ can reduce it with a minor slowdown. The repository includes an MIT License, which permits use and distribution subject to its conditions and provides the software without warranty.