challenge.camera vs Bracketfuse

I have a couple of friends that are also into photography, we try to meet up on a regular basis and take pictures. We soon realised that we need themes, and we did not find an easy solution to the problem. So I sat down one weekend and created challenge.camera. The site has been up since mid-2019, and has seen some traffic. To make it even easier, I decided to make an app that links to the webpage, and here it is! All example images are copyrighted be me fredrikmolnar.se or from unsplash.com. If you have any suggestions, send an email to suggestions@challenge.camera Enjoy!

Merge bracketed exposures into one natural-looking photo — with detail in both the bright window and the dark corner. Pick 3, 5 or 7 photos of the same scene shot at different exposures (camera RAW, DNG, JPEG, HEIC or TIFF). Bracketfuse finds the brackets for you, lines the frames up and blends the best-exposed parts of each one into a single image. Everything happens on your device. • AUTO-GROUPING — select a whole shoot at once. Brackets are grouped from each photo's exposure data and capture time, and back-to-back sets are split where the exposures repeat. Tick or untick frames to fix a set. • HAND-HELD ALIGNMENT — frames are registered to the middle exposure before merging, so hand-held brackets stay sharp. • EXPOSURE FUSION — a multi-scale blend that takes contrast, colour and good exposure from every frame. Natural by default, with no halo-heavy "HDR look". • REDUCE GHOSTING — people, leaves or water that moved between shots come from one frame instead of appearing see-through. • LOOK — Natural ↔ Vivid strength, Highlights and Shadows sliders, and white balance matched to the middle exposure. • CAMERA RAW — raw files are developed with identical neutral settings, so only the exposure differs between frames. • SEE IT FIRST — the full merged preview with every option, plus a compare view against the middle exposure. • EXPORT — HEIC, JPEG or 16-bit TIFF at full resolution, keeping the reference frame's EXIF (camera, lens, date, location). Bracketfuse merges brackets you have already shot, with your camera's auto-exposure bracketing (AEB) or a bracketing camera app — it doesn't take photos. On devices with less memory, very large files are saved at the largest size the device can handle, and the result screen tells you when that happens. Merging and the full preview are included; a one-time purchase unlocks exporting the full-resolution photo. Questions: overlapmarr@gmail.com