Lossy PNG 13 years ago
Demo images have added scrolling striped background with background-attachment:fixed to make alpha channel more visible.
backgorund-attachment:fixed is a bit buggy in Android Firefox, but images themselves are fine.
HN user
Demo images have added scrolling striped background with background-attachment:fixed to make alpha channel more visible.
backgorund-attachment:fixed is a bit buggy in Android Firefox, but images themselves are fine.
That's as true lossy as JPEG, which first "blindly" applies quantization in pre-processing step before doing RLE and Huffman compression.
From the example you can see it's not a simple blur, it's side-effect of lossy application of PNG filter.