so here are some information I have gathered.
In the past view years media transfer over the web has dramatically increased so it comes at no surprise a bunch of new media and compression formats have appeared to reduce the transfer load.
The Webp is google's attempt at replacing jpeg, gif and png images.
It offers a lossless as well as a lossy compression, and all other features found in the format it replaces.
The WebM is the video counterpart.
I'm not interested in the lossy part as quality doesn't matter when you already have decided to accept losses. I'm most interested in WebP vs. PNG at maximum compression and no cheating/cutting etc.
So far Webp does create a smaller sized file than png. However, the thing I noticed is it does not seem to save the print resolution (in dpi). This might be a problem if you want to print an image and don't know the original size, hence, resolution needed. It actually saves a different print size.
Edit: The resolution seems to be fixed at 72 dpi and the result is based on that conversion.
Widespread compatibility is still an issue and it's still in development. I don't feel it's reliable. So my bet is rather on an even better format in about 5 years. (10 years after HEVC / X.265 when X.266 comes out)
FLIF is another lossless format which claims to be better than all the others
It's based on the Adam7 algorithm.
It does not mind of bits and pieces are missing after a transfer...
To be honest this is like a fake compression from a long time ago which recursively deletes half the data each round => making any compression size is possible.
I'm skeptical because it accepts any amount of losses.
Brotli is google's new general web compression
I expect it to be replaced soon enough in another 5 years.
In case you don't know 300 dpi is standard for printing (including your printer). Keep this in mind when you scan photos. This is the minimum.
Last edited by Almael on 2/27/2017, 12:29 pm; edited 3 times in total