How ti should look like:
How Mapillary compresses it:
You can see all kinds of blockiness, and most importantly, signs and objects are way less visible than in the original photo.
It’s not even like the original photos are heavy, they’re around 3.2MB each, which is not that much (my phone takes 2MB photos). Maybe this is due to the Mapillary app, maybe Mapillary servers freak out with GoPro pictures, maybe they downscale the image. The fact is, the pictures are sometimes bad quality in Mapillary than in the original, which is a shame because the main point of Mapillary, among others, is to read signs, and they are way less readable when Mapillary compresses it than what is originally given to it
I believe it would be great, at least for 360 photos, to either use a better compression format (like WebP, MozJPEG or even at best, AVIF) because by the looks of it, it seems like JPEG is used currently, which is an outdated format, or either make the files bigger in Mapillary servers (which is owned by Meta, meaning that they should have great servers)
Edit : The blockiness/bad quality is better appreciated here