PhotoPad vs vkdt

PhotoPad edits and enhances digital photos and images, with tools for cropping, rotating, resizing, retouching, and adjusting color and exposure. Blur and sharpening controls complement its non-destructive editing: users can undo, reorder, or change effects in a layers list. It can also make collages, photo mosaics, calendars, greeting cards, and photo montages. The maker lists AI-assisted super-resolution resizing, object and background removal, and colorizing black-and-white photos. PhotoPad supports RAW editing and formats including JPG, GIF, PNG, TIFF, and BMP; HDR/exposure blending is also listed. A project can contain up to eight images, and panorama types include wide. Edited pictures can be uploaded directly to Twitter, Flickr, Dropbox, OneDrive, or Google Drive. It is listed for Android, iOS, Linux, macOS, web, Windows, and as an extension. The free edition costs nothing and is limited to non-commercial use; no signup is required. Desktop requirements are Windows 7 to 11 or macOS 10.5 or later.

vkdt is a workflow toolbox for processing raw still photographs and video on Linux, macOS, and Windows. Its pipeline connects multiple inputs and outputs in a node graph, using GLSL shaders and Vulkan. Photography tools include colour management, noise profiling, a folder-based image database, automatic parameter optimisation, and U-Net-based denoising. The maker also describes real-time workflows for animations, timelapses, and raw video, including Magic Lantern MLV and MotionCam inputs. Documented formats include JPEG, OpenEXR, raw stills, MLV, MotionCam raw video, and video for input; listed exports include JPEG, JPEG XL, OpenEXR, PFM, BC1, H.264, ProRes, and video. A command-line utility substitutes export nodes for display nodes. vkdt is free. It requires a Vulkan-capable GPU; the maker recommends 4 GB of video RAM, or at least 8 GB for large graphs or images above 50 megapixels. The code is licensed under 2-clause BSD unless otherwise marked, with some files containing GPLv3 code.