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A new PNG spec

(www.programmax.net)
618 points bluedel | 2 comments | 24 Jun 25 13:01 UTC | HN request time: 0.412s | source
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LeoPanthera ◴[25 Jun 25 05:06 UTC] No.44373778[source]▶
> I know you all immediately wondered, better compression?. We're already working on that.

This worries me. Because presumably, changing the compression algorithm will break backwards compatibility, which means we'll start to see "png" files that aren't actually png files.

It'll be like USB-C but for images.

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skywal_l ◴[25 Jun 25 05:10 UTC] No.44373790[source]▶
Can't you improve a compression algorithm and still produce a still valid decompression input? PNG is based on zip, there's certainly ways to improve zip without breaking backwards compatibility.

That being said, they also can do dumb things however, right at the end of the sentence you quote they say:

> we want to make sure we do it right.

So there's hope.

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1. vhcr ◴[25 Jun 25 05:23 UTC] No.44373875[source]▶
That's what OptiPNG already does.
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2. josefx ◴[25 Jun 25 09:54 UTC] No.44375432[source]▶
Doesn't OptiPNG just brute force various settings and pick the best result?