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A new PNG spec

(www.programmax.net)
615 points bluedel | 2 comments | 24 Jun 25 13:01 UTC | HN request time: 0.59s | source
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ksec ◴[25 Jun 25 11:10 UTC] No.44375919[source]▶
It is just a spec on something widely implemented already.

Assuming Next gen PNG will still require new decoder. They could just call it PNG2.

JPEG-XL already provides everything most people asked for a lossless codec. If there are any problems it is its encoding and decoding speed and resources.

Current champion of Lossless image codec is HALIC. https://news.ycombinator.com/item?id=38990568

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thesz ◴[25 Jun 25 14:45 UTC] No.44377942[source]▶
HALIC discussion page [1] says otherwise.

[1] https://encode.su/threads/4025-HALIC-(High-Availability-Loss...

It looks like LEA 0.5 is the champion.

And HALIC is not even close to ten in this [2] lossless image compression benchmark.

[2] https://github.com/WangXuan95/Image-Compression-Benchmark

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1. poly2it ◴[25 Jun 25 18:45 UTC] No.44380612[source]▶
It looks like HALIC offers very impressive decode speeds within its compression range.
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2. ksec ◴[25 Jun 25 19:30 UTC] No.44381031[source]▶
And not just decoding speed but also encoding speed with difference of an order of magnitude. Some new results further down in the comments in this thread. Had it not been verified I would have thought it was a scam.