Decrease quality photo and video when upload

[yann]

Hello,
I take video and photo with my gopro max since 2 years. I notice a different quality since video and uploaded photo to server (with mapillary desktop version) i’m thoinking thaht quality wareduce cause of configuration ffmpeg but I have prove that mapillary reduce quality alsojust a photo.

You can see real in right and reduce photo (less color and smooth) in left.

Why do you reduce photo? (original is just 3mo) Is it to not loose too space or bluur algorythme create this reduce quality? Do I have some setup to not have reduce quality photo?

Image key : 1183212540087225

Thanks to your support
kindky

[nikola]

For performance reasons the Mapillary image viewer loads a lower resolution version of the image first and if you zoom in then it loads the full resolution image which should be the same size and quality as the one that was uploaded.