Comment by cubefox
1 day ago
Progressive decoding isn't expected to speed up decoding, it's expected to speed up displaying large image files, especially for downloads via slow mobile connections.
1 day ago
Progressive decoding isn't expected to speed up decoding, it's expected to speed up displaying large image files, especially for downloads via slow mobile connections.
I've started using computers in the 90s, I've seen this every day back then.
Still the question is, does it help? Trying to access an average web app will probably take minutes before the browser may even see an image. If you do everything possible to render reasonably fast on very slow speeds, then progressive is nice. On a fast connection I don't think the average user will notice the difference.
Where it helps is in finding out if it's even the image you wanted. You get a sense of it from the fast first pass, and then can hit back if it's not the thing you thought it was.