4 ms·
Lossy PNGs exist with transparency.
by archerx 9mo ago
Lossy PNGs exist with transparency.
- adzm 9mo agoDo you mean lossless? PNGs are not lossy. A large photo with alpha channel in a lossless png could easily be 20x the size of a lossy webp
- Semaphor 9mo agoPNG of course can be lossy. They aren’t great at it, but depending on the image can be good enough.
- archerx 9mo agoNo I meant lossy. This is the library I use; https://pngquant.org/ https://pngquant.org/
- thunderfork 9mo agoPre-processing does not a codec make (this is why .gif is considered lossless even though you lose all that 24-bit colour goodness)
- archerx 9mo agoFair enough but it gets the job done well none the less.
- WhitneyLand 9mo agoPNG as a format is not lossy, it uses deflate. What you’re referring to is pngquant which uses dithering/reduces colors to allow the PNG to compress to a smaller size. So the “loss” is happening independent of the format.