JPEG XL

I get that in android chrome

In android firefox it works though

huh

I’ll look into that tomorrow

really odd

https://jxl-art.surma.technology/?zcode=rVRRT8IwEH7vr7hnloZ2YxNeTJSoxJBpwKS%2BLjCh0W0GhpF%2F77VsbGu7oIlv7de763fffe2tLNfpZ7kFzsjTTqZ5mZSyyOGKCLlG2GejMZmlcrMtT%2BvF9AU4ud8lWfpc7IEB5ZOIDAfw%2BDqHj2JTwGBIiHyDDVyD7xMAXK9wzXGpNzFuQsb0FoCC0NXTNdAGxTDxMMPAGlCBN1%2Bb2IvvwIssUIA3ZvUFq1Yebo9Gmbiictot07I%2FuAIaXhWoewtamEa%2FO7kmQfOkqh0x88Bk1cZjA61u5Uwr%2Fe%2Fl26pflsAd69agIo6WIlY3IzZxNRnxkd2jOhjzyR96VDgPmd2oneAMbgLR9NPtrsgSZXnDeR3TN4KZzkPLE6v7riKCCoEw5QY14YJsokH7TRkcHJ7VdcG3ynDGLKZRaGZ6EFiZdFJlolzzQy3W2aB%2BXQOPl%2B9HSPI1ZMUB%2FyGZ7%2BvYX5I%2F%2FxpBj%2F88CE1nxYKqD4m6HFHbmRpp%2Bqmoau0BIH%2BZy9JFvvXx0Ygx02SxUtzlPNpRXQmUJu2q59fPQ3OEnDmF4X3C%2BD0vmfrNeBY4myLL0%2F2luQj9Z3YpnT95bnuU%2B11zidNAegqMrHw1ux8%3D

abort(undefined)

When Chrome 91 finally gets stable and majority of people updates the browser, I'll post at least one (if not more) of those images in r/NextFuckingLevel. Getting reposted to r/pics (or maybe even r/all) would be a dream!

It worked for me on a fresh android firefox (where I had never loaded the online tool), but on my android chrome it gives an abort. Desktop chrome is fine though.

https://jxl-art.surma.technology/?zcode=fVFBCsIwELzvK%2BZeAtlq25ug4rWCFXouNWJBVCQH%2Fb2xDW2SRm%2B7k5ndmc2m0yf10BewpP2zUzfd6O5%2BQ0Hr6%2BPS0GF7BBN1Z7RYISXAlG9TSlOOTcZD2wMvD3AgHiFAoKwhHcBOKvLcAb%2B8SmlkUgZo6YhNt8PMAMffvdWWzDJNKb7PMlxbA8VoFmHENFvSf%2BuWKCMZvYGh3t6fKTJEoIbw%2FY%2BzrM5J8%2FbWfw85aiNOjKAW5lwrCHbTlgb1wQEOvn6a6WMzH1OSBByg0Zv9psc29l%2BeeLkrdVWt7vUf

https://jxl-art.surma.technology/?zcode=dZFBy8IwDIbv%2BRW5SyFp3cYugorXCSrsLPsmDkRFetB%2Fb61bTbt9t%2BZpmrzv21Vn%2F9q7PSMTbB9de7VH292uWMDycj8fYbc%2BIAN0J2xwgRoQ3fHljuSOocjY%2BNKDpwfUg4CYzTwwRIVVjSRAP6rIcwE%2FffvWYkaU0Eo8dtUmlEEBT9%2F3qxmkNioHbcO%2BMh5X5BpiSUwmtagzAyPlJjH5DOH9P08KMd%2FMP%2FFHmikIrlFpiEdpM7Q2ojX6uiFGNTamxW%2FWyoW1QMXSbOVoDL%2FY566nfMSOR0J%2BVmbICZ3MTLSbiYt0pf%2FyGZZl5PXSNtYvfAM%3D

what is the real colors of this

is the image of wb edited by me

this

https://discord.com/channels/794206087879852103/824000991891554375/839585952220446760

https://jxl-art.surma.technology/?zcode=bZE9T8QwDIZ3%2Fwrvp0p20g%2By3ABiLRKc1PlUiqiEDoQycP%2F%2BkjSkTi6b%2FcQf7%2Bs8rvZ9%2BbGfyAQvv%2BtysWe7fl9wgNenEzLA%2BoEzHlEBoguvLmxdmJKOdUgD%2BAuAItiR4oQQGxwnJAHipKHvBfR1b4vFjqigo2h22XNKkwCuv8fVDKKYybSQ7zP5uKFXkEvquS0dqk7DnXJdmPSFVLOoxECpRG839%2BfPRFNSPGGjMvlMSv%2BXzqI03jg7xd571x0apsZd64gNS7ejozncsGPGVFzkhqMMpTO6OTkga1Pw6tX2hgeuPJRbw6cfpDpf87XM1q%2BEGw%3D%3D

Cool gradient, do you know what causes the lines?

because i copied

is only numbers edited

Fabian is an artisanal genetic algorithm

The point of the JXL-art is to show the capabilities of JXL, go wild as far as I'm concerned

How do you actually do layers? I add "Alpha" and "NotLast" but I don't see results

V print https://jxl-art.surma.technology/?zcode=TYzBCoJAFEX39yvuDwg5NdGqRRHtCprAddQT30ZNnpB%2BfTOJ5O4c7uGGdy8yCg5qL2mt4ga3450ux7VTqe1h2tR0OHdN34ZKS%2BMK0JJP7pk7kDNvI5MZg6QkcVyGuEzy089CU3spmK2XfuIOsxT0%2BB9iAuf9Fw%3D%3D

Illusion https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw4wpyDlEwMuPyL8pMzStJLMnMz1Mw4eLKTFNIVrBTMDThUlCAsc2AbAUFXYXg1BIFAzAbKFMJlIFwwNwKJC5IrV%2B4gq4xMt9VwZQLxglXMDTigploBAA%3D

https://jxl-art.surma.technology/?zcode=c8wpyEjk8ssv8UksLuHi0tdScMovKcnPVchJrEwtUtDS58pMU0hWsFMw5FJQ0FUITi1RMDI1hbMNwFpC8gsw1BsB1QCZ4UCmAZAJ0hCuoGsIZSLMgSo3QJIwQFMEAA%3D%3D

Need to have two trees or it will not work

There is also a bug in the alpha blending in the decoder currently in the tool, I think

Fleety https://jxl-art.surma.technology/?zcode=dZDNCsIwEITv%2BxRzLoT%2BYPEmVCl6kB60kHPR2BYiKRrEvr1NG2tS8LY7%2BXY2s5nsmopOuxIrKpQ%2BVk9NFAbYKq3VHbLqxQNBSO0Nb2wQETCUvS3H5jI08dgADFy0daPFFYmVBqKYcStwT5gYzgzGElc3hmehsdQ4WOyP8%2F3BfGMJZq86kxIsjf88OBPGdsJ%2BSxmK3OwyJylV593jm9sL6Dg7Vkm0pvlWES2DWShN6QM%3D

nice!

Mmh looks better on a white background

Looks like parasites or some other nasty micro-organisms in a petri dish

Can you add a white background to it <@794205442175402004>?

<@!794205442175402004> is it true that you can only select RCT for all frames at the same time?

No

You can change RCT between frames

There is no way to stop doing squeeze though with the current syntax

https://jxl-art.surma.technology/?zcode=c8wpyEjkCnIOUTDg8ssv8UksLuHi0tdScMovKcnPVchJrEwtUtDS58pMU0hWsFMwAjEqgAwDLgUFILMSygQBXYXw1Mz0jJLUFKAyiEBwaglYWlfBz1VB15ALImJkagq2IyS%2FAMMCQ4i5fnBzdRUcy9Idc3JA2hGGGhmYQxQmIymE2QZXBLQHAA%3D%3D

Not sure if I really understand what is happening here

Weird alpha stuff

It still has transparent spots <:WTF:805391680538148936>

Yes weird

is it negative transparency?

https://jxl-art.surma.technology/?zcode=dZFPC4JAEMXv8yneOVjUJekWWEQdwkMJe7baVNhYqSXy2%2Beq6a7Qbebtb9782UTVZU6pNsf8ZYiCBURZGYlLgUVAxHCWBjyOaWRO2wxL6tCNNkY%2FoPJGPi1e3fHBGiEBbdgMYZdc2yTqEoBByKoojbyBD1JLpCM%2BCMITekYwizHu6tbQTjnXBFjkl4v9wY4xB5N3kSgFFkd%2FHpwKa9tjU1OGdGd72ZNkuvbu8dvbW9Bxdqx4uKLxViHNF5u%2B4gs%3D

This better?

Just added a layer below that is just white, so 3 layers in total now

Yes what you had as bottom layer had negative alpha, and your top layer too

And that does weird things

Still not what I wanted. I will give it another try later. Which channel is alpha?

4

I mean 3

0,1,2 are RGB (or whatever after RCT)

https://jxl-art.surma.technology/?zcode=jZLBTsMwDIbveQqfN2WzK3qAAxKgSZyKBEg9R2u6RgrtVDLBeHqSpu3SBqbenPr7%2Fbu2H5Up5NFUcMten96B2EurZG2EUU1tX7kqbI4wuWHPUh0q4%2BMHfawEY6qEPdxDwgBseLYh2hBgu4K91PqkRQviZJoPYWy1QpaqVq7wHay2HWhV2ajqdBvaDEmfzrkjOPWfOohCyGM82wWFRg5DDoDDmzQxRXMqCxhL4EI%2FjP2ymKFrPbkR4J8jmHRE%2BE9HwaB6MG4pjyaAdH1Oru%2BljohLho6xpa02nk%2Bp2k8DbfMF3ckIrX78SV4O59t6pzSYe5P5G%2F1luiOlUIcjlcNUwYcSvQwvezhPluBWuwZi07%2Fk8w6SNGW%2F

I wonder how alpha channels like that compress in other codecs, haha

probably not well xD

is that a 0/255 alpha sierpinski basically?

Yes

Well not the traditional sierpinski

I like this one better because it has some filled triangles

yes

it's pretty cool 😄

Can do whatever else in the other channels of course

https://jxl-art.surma.technology/?zcode=jZPLTsMwEEX3%2FopZF7mdicgCFkiAkFgFCZC8thqnsRSSKriC8vX4kYdTQ9XdJD537uR68qBNqfamhhv2%2BvgOxF56rVojje5a%2ByR0ac8Is2v2rPSuNqG%2Bb%2Fa1ZExXsIU7yBiALY%2B2RFsCbFawVU1zaGQP8mC6D2lst1JVutWu8S2sNh60qmJSed2a1uNhOBbcEZyGVx6iGAoYL56iRhOHMQfA4U2ZlKJTqogYS%2BCFfpj6FSlD52ZyEeCfESwmIvxnoiioAUxHEkkCSOdzcnNf6oh4SeiYWtpu0%2FpUuv800Hdf4FdGNvonrOS8ON%2FWO6fRPJicPmPYTLekFOtwogQsFXxsMchwvofj4hLc1V4BseVX8nkCqxA%2BHoxFwv9FqoxjC9Isz9kv

Some alien art in the luma instead of just the constant

Negative alpha is kinda cool

https://jxl-art.surma.technology/?zcode=jZPfT8IwEMff%2B1fcM6RwRZeoDyZojDyQmahJnwsr0GQyMgqKf73Xbuu6DJU93Y%2FPt9e79R6MzfTObuCWvT6%2Bg2AvpdFbq6wptuRJk1FO4OSazbRZb2xlT%2FPdRrG0sHO1t4yZFSzhHiaMw5u2kAjB3FeHsTFEnfeBk89wSH04BS5YGyZDPs9qYnpcp8NUwhCugvcEnDzPEZUkWB%2FNBTrTwTd0g%2FEA5uqkS1CL4qhhMG6vChCqkQ1A6FLn%2BSFXRB9s8aEsTSDTK7M1bhh3Tu1AkqVeBlDrRmLUJKu05I6gjgACJGKowji10R4UOIw5oEYJ60GiB0UMEXhhOTxTrs%2F0q8nOAPDsADoXEvjLhaIx1SD%2BUS1A%2Fw7g0nqIF0zgTLnmp1B6Zcq9hbL4BP9YVG6%2BqwVqn8yXe6aiKd3uSexj9SirVYl0GCgJXQVvjgirFro9dX6A62kIIvI7cq%2BQfjgYi6TfeZ3FQ6ukkyRhPw%3D%3D

The sierpinski overlay is just alpha 0 and 1

https://jxl-art.surma.technology/?zcode=jZNdT8IwFIbv%2ByvONaR4ii5RL0zQGLkgM1GTXldWoMlkZBQUf72n3dZ12VR2dT6ed6d9294bm%2Bmd3cANe3l4A8GeS6O3VllTbCmTJqOewOkVm2uz3tgqnuW7jWJpYRdqbxkzK1jCHUwZh1dtIRGCua8uYxOIuu8LJ9%2FhkPpyClywtkyBfJrXxOy4TsephDFchuwROGWeIypJsP41F%2BhCB1%2FTCi5GsFAnXYJ6L44aRhftUgHCNIoBCF3qPD%2FkiuiDLT6UJQcyvTJb48y4dWoHkiz1MoBaNxGTplm1JXcE7QggQCKGKozTNtofBQ5jDmijhPUg0YMihgg8cxwOjOsz%2FWmyYwAOGtBZkMBfFhTZVIP4x7QA%2FWvAufMQz3BgYFxzKNRemXJvoSw%2BwV8WlZvv6gG1V%2BbLXVPRjG7fSZzzqhBeSyTFAEoYFAUZtsdw6pyB29YYRJR35F4hvT8Yi6R%2F9jqLfauk0yRhPw%3D%3D

Here the sierpinski is alpha -1 and 1

I think I like the gradient sierpinski better 😄

Forcing the alpha channel to 255 has no effect on my image: https://jxl-art.surma.technology/?zcode=dVBNC4JAFLzvr5izsKgb0i0wiDqEl4I9S20qbKzUEvnve2t%2BrIq3N%2FNm3jwm1XWZszDA3lhrntB5o14IQpYZe87flrHqgRt22DCA46IsRJLQTPSX6IjGFjQDaKGzxB10RqmqorTqDjGQpMo8U0fJGfXXSe6kXEw3%2FUdLVoLH8yPyeHJPLcXpp0i1Bk%2Fi1dXE5c73Uv8BjuzgcqnNq6nHKtcbHFualeElT4JEtGUeojs%2F

It's c > 2 to select the alpha

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTlCs9MATEMjEy4PFIz0zNKIOwg5xAFEy6uzDSFcAU7BQMuBQUg0w%2FKBHPCdf3C4XwFBV2FcLD21BQFQ0whXSMjI8IadY0xxUxIstoUi6FmRFhsjilmAQQA Algae Farm

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOEKz0wB0oYGRiZcHqmZ6RklEDZXZppCuIKdggGXggKQ6Qdlgjnhun7hcL6Cgq5COFhjaoqCIaaQrhFhbbrGmGImJFlshMVQMyIsNscUswAA Ant Colony

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOEKz0wB0kamZlweqZnpGSVgZpBziIIZF1dmmkK4gp2CAZeCApDpB2VCOLp%2BrnC%2BgoKugmNZumNOjoIhuoCuISEtusboIsYkWGiKYZwpIS3GmC4AAA%3D%3D Circuit Layout

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOEKz0wB0oYGRiZcHqmZ6RklEHaQc4iCGVdwYWlqalUqF1dmmkKygp2CsSmXggKMbQZkKyjoKgSnAvWA2UCZcKCMAZgD5vohcSECun6uKGIgE8LBFqemKBhhF9Y1It4IXWMUcceydMecHAVjsp2ka4TNPBIchNU9YFdCgs6ACwA%3D Inferno (does anyone know how to fix the horizontal stripes on this one?)

not doing Squeeze is probably a good idea here

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOMKz0wB0oYGRiZcHqmZ6RklEHaQcwhQkiszTSFZwU7BgEtBQVchOLUEzAIKhkMFwRw%2FOAfC1fVzRRIB6QwHm5yaomCETVDXiDjNusZIoo5l6Y45OQrGZDhC1wjTHCKdgMUFusYA

Right, I used squeeze because I wanted to zoom in a bit, but I guess it looks pretty good like that anyways and getting rid of the stripes is non trivial

https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTiCs9MATEMjEy4PFIz0zNKIOwg5xAFQxMursw0hWQFOwVDLgUFXYXg1BIFAyALKBgOFAQxwRw%2FOAfC1fVzRRKBqNf1C0cRA5kXDrYwNUXBBIe4MfFG6OIyQ9cYj8t0FRzL0h1zchR0DTHFDIn1H7Jt5pjmmBKn1QSLq0y5AA%3D%3D The Purple Sand Dunes of Planet JXL

that's pretty cool 😄

https://jxl-art.surma.technology/?zcode=jY7NCsIwEITv%2BxTzAgv5OwtRCp6KqJC7JraBHqSGPr%2BpKUqxFW8z3%2B7M7jYmH%2B6phZTkoh%2BFUIb2ITZtKvq4O0MponjDFRtIArI89GGwl0fV95mZzACGe8WCB2sxoVNIUEKUkMu7ZZBNPZYVVzzX1Xs%2BMce1m7HZFbPC9f8VvNbB%2BsdnDDs0tuvA8ptJWo4tPPjp0fQE

Small variation on the above

Cool use of PrevAbsErr. I haven't played around with the Prev* features much yet

can you add upsampling to jxl_from_tree? 😄

Yes, should be easy and some of the things might have interesting upsampling results

Plus you can do 64 megapixels in one group that way 😅

Should also be nice to add to existing nice jxlart if you want to, say, make a printed poster or desktop wallpaper from them

But 🤫 this is all "working on Core Experiment 10 to create a conformance test set in preparation of the committee draft of ISO/IEC 18181-3"

😂

Finally, something that looks more or less like white noise 😆 https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOEKz0wB0oYGRiZcHqmZ6RklEDZXZppCQFFqmYKdggGXgoKuQnBqCZgFFK8JrwEKmxoCecgyYLlwqAYo1w%2BJCxHQ9XNFEQOZ4F6UmJKZmleioGtogkvCmAqmGBpR4DJDAmYSYYihKS7DuQA%3D

So... do we need noise synthesis really? Maybe it can just be modelled with a fancy predictor like this?

more variations on the theme... Glow in the Dark Slime https://jxl-art.surma.technology/?zcode=jY9BC4JAEIXv8yvmDwy4mtApsFA6mVSwZ8lJF0xjW%2Fz9TdpKQUWnmfftm8fbtXEVX12DS9CmkqmCcAFbNnXjpn1nDXeudKbvMIT95ogqhsyWFy76GwZIUQhgznjCFQaAKGtheUitFUCREETCZKiTtkUvD%2By8WT%2FvRpGLiCY1acrT%2Bd0zTfkbewTqsTFXUvEjVv8n0JcIUj96zT8k9cLEFHvP7FBwBw%3D%3D

loving that chromatic noise effect

I would rename it to a somewhat more creepy "Grow in the Dark Slime"

I made that remark at some point (long before we had jxl_from_tree). For just generating the noise itself maybe not. But the noise coding tool in jxl doesn't just add noise uniformly, it modulates it based on luma, in a way that cannot be approximated by any kind of blend mode.

Can you have something like a multiplicative frame?

There is kMul blending, yes

That would be probably the best way to do modular-overlay based noise

So you could do: (a) noise frame using predictor like above (b) multiply with noisiness frame (c) add real data?

(and i guess you can take advantage of the noisiness and real data luma being correlated?)

Yes, in that way it could be more flexible than the current noise coding tool, since it allows arbitrary shaping of the noise

That gets trickier, frames do not see previous frames in their context model...

But if the noisiness frame has low entropy, its signaling cost will be small compared to the image itself

Can also do kAlphaWeightedAdd and do noise and noisiness in a single frame, probably more efficient.

also the current noise model is a little bit faster than this would be 😄

You may be able to inject more chaos in the green channel with a mix of Gradient and Select: https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOEKz0wB0oYGRiZcHqmZ6RklEDZXZppCQFFqmYKdggGXgoKuQnBqCZgFFK8JrwEKmxoCecgyYLlwqAYo1w%2BJCxHQ9XNFEYOYkJOaXKKga2iCIuxelJiSmZoHkjAmaAaSYhNshhsake0qQ%2BwWwU0kwlGGptiN5gIA There is still a pattern in the top-right border though.

Streaks https://jxl-art.surma.technology/?zcode=C3IOUTDn8i%2FKTM0rSSzJzM9TMOPiykxTCChKLVOwUzDgUlDQVQhOLQGzgOIVQEEjEBvMC3f3APItLcF8kErHsvRwbb9wBV1DY7hYeGpmekZJaoqCMUxbTXgNUJuhqSFcDcwGmLlQq%2BECfigCECFdP1c0UYhJOanJJUAHmKBJuBclpoB8ieQ2%2FCYhaTDBbomhEYVuNMRlJZLJRDnR0BRNBh7ouoZcAA%3D%3D

Mmh, this one does not need that much randomness to work: https://jxl-art.surma.technology/?zcode=C3IOUTDn8i%2FKTM0rSSzJzM9TMOPiykxTCChKLVOwUzDgUlDQVQhOLQGzgOIVQEEjYyAbzAt39wDyLS3BfJBKx7L0cG2%2FcAVdQ2O4WHhqZnpGSWqKgjHEiHDd8HCo0TDDdQ0NTbnQVBtyAQA%3D

Gilded falls https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOMKz0wB0oYGRiZcHqmZ6RklCuamBlxBziFAOf%2BizNS8ksSSzPw8BVMursw0hWQFOwUDLgUFXYXg1BIFIyALKBgOFQRz%2FOAcCFfXzxVJBKQzHGxNagpYO4agrhFxmnWNkUQdy9Idc3IUjMlwhK4RpjlEOgGLC3SNAQ%3D%3D

Alien troglodytes https://jxl-art.surma.technology/?zcode=pVFBCsIwELznFfuBgJu0ehOqiLcKKuRc2tgGQpUSxEMfb2KrtjVCq7fM7GZmmF0pk8mLKWBB9usjzMmuUrI0iVHnEkJC1AlSWMKMAFA4SAPonpa9WRYZt%2BABRbvUwrgDG4LGmx7n9IRUeWFkBsxPUzZegvIeH13zSGvgP0eizKc3IZA3D30VVovaNRgiea64djsVio%2B8Ay9%2FgkZJy9QAxWAw2FZJ5s5rR3yUUudD4DdB9mdG%2FGaJbFpEDAeT9y2R3AE%3D

I had a whopping 10 MEGABYTES worth of traffic to sneyers.info/jxl/art

That's a bit over 3000 hits

what percentage of that bandwidth was .jxl files? :D

Now imagine how higher would it be if you served PNGs...

I do wonder what png-below-128-bytes-art would look like

Probably some waaaay simpler stuff

and lower resolution; png's max compression ratio is not 0 bit/pixel ;D

How about sharing other people's art on that page too? <:CatSmile:805382488293244929>

and some of your own are missing which I really liked

Yes, need to extend it, but it's getting a bit long so I wonder if there's a better way than just making a really big page

the decoding of those images is insanely slow with my computer jxl

<@228116142185512960> would there be a way to add a button "Publish" that opens a page/dialog where you can enter your (nick)name and a title for the piece, and then 1. (optional) a discord bot puts it here 2. a google form gets submitted with the url, name, and the generated files 3. the form results end up on some page where you can reddit-style upvote/downvote the art so maybe the best stuff floats to the top

Hm, I could look into triggering a Discord Bot WebHook actually

that sounds fun!

You mean in chrome canary or how are you testing? From what year is your computer?

Maybe Fabian will say "I bought it last year..." "...it's a Raspberry Pi Zero."

600 geekbench

when it was new

10 years ago

now it lags with jxl

never did

firefox

but i think is my computer that is becoming old

like my tv look more interlaced but has also 10 year the 32 inh tvg

the normal not

it looks same as was bought

2010

what do you mean by "lag" ?

Modular decode is kind of slow, <@179701849576833024> and I were brainstorming a bit today on how to speed it up. There are probably ways to make it faster, currently the trees basically cause constant branch misprediction which is about the worst thing for performance, and that could likely be improved by doing more cmov and less branching.

that's not usually a term that applied to image decoding

Of course if you're running the jxl decoder on a possibly malware infested windows machine, who knows how much of the cpu the decoder even gets to use

good being honest

Is that Windows ME?

What processor do you have <@416586441058025472>?

Then call it "slowness", does it matter?

Well that's my question! Does he just mean that it's slow, or something else?

i3 330m

the computer increased temperature reading jxl images

The CPU is not too bad

performance has improved

The CPUs of that age lack a lot of modern instructions

<@!794205442175402004> So turns out writing a Discord bot is a great move for this

If you send me a webhook URL via DMs, I can deploy this tomorrow 😄

(Ideally for a dedicated channel, I’d say)

unsure if pasting whole source is good idea

or wait, that link doesn't contain it?

It does, but you can’t read it without clicking it

Happy to let y’all vote on whether to include the source

I guess some are quite long

btw how is that url encoded? base64 + some kind of compression?

what kind of compression <:Thonk:805904896879493180>

`?code=` is just pure base64 for compatibility reasons, compressed `?zcode=` was added later. I don't remember exact compression algorithm tho

it’s just deflate

ah nice

btw you could save a couple bytes by changing base64's + and / to some other characters

PRs welcome 😉

but that would need _yet another_ parameter name

and I can’t be bothered tbqh

Maybe `?bcode=` for Brotli?

lol

I’d have to ship a brotli compressor and decompressor in userspace, and that’s not worth it imo

I thought it's contained directly in a browser...

why does it use `?` instead of `#`? isn't it wasm based?

it could use either

client-side js can access the querystring and the fragment

`#` would be better for cache-ability

ah true

<@456226577798135808> browsers do support brotli, but it's not exposed to JavaScript, only to the http connection handler

I'm shipping a service worker, so i control caching

1. Why aren't all available compression algorithms exposed to JS? 2. Which ones are available?

It's being worked on. `CompressionStream` is now standardized, but not implemented yet afaik. Re #2) none

PR opened, didn't need another parameter name after all

Where's the bot's code?

THere is no bot code. Just triggering a web hook from the app

for traditional art, captions are usually something like this: Paul Cézanne The Card Players 1892-1893 Oil on canvas 38 x 51 inches

so that's [artist name] [artwork title] [year] [medium] [dimensions]

well this is not traditional art, now is it :3

I'm using `image/jxl` as the 'medium' and `N bytes` as the 'dimensions'

but sure, I can add that

(could also have the pixel dimensions, I suppose, though usually it would be 1024x1024)

Both bytes and pixels could be in the dimensions field I think. They are both relevant.

Nemoscope https://jxl-art.surma.technology/?zcode=i4h04vIvykzNK0ksyczPUzDi4spMU0hWsFMw4FJQgDINgUwwJ9zdAyoDAroKfuFAwgzOdSxLD9cGipnC1AcUpZY5JhW7FhWBTDFAaAxPzUzPKElNATKN4ILuRYkpIJcoGEOsrvGrAWqDGIaixRhdyNDUgAsA

https://jxl-art.surma.technology/?zcode=i4h04vIvykzNK0ksyczPUzDi4spMU0hWsFMw4FJQgDINgUwwJ9zdA8g1gvAVFHQV_MKBhBmc61iWHq4NFDMyMoZpCShKLXNMKnYtKgIZZAFXGp6amZ5RkpoCZBrDBd2LElNAblGwANsB1F7jVwPUB1GBoskcXcjQ0IgLAA

In the direction of glass https://jxl-art.surma.technology/?zcode=i4h04vIvykzNK0ksyczPU7Dg4spMU0hWsFMw4FJQ0FVwL0pMAckqGAK5QJkavxqgnKExkAeSDk%2FNTM8oSU0BMk3QhQxNDbkA

https://jxl-art.surma.technology/?zcode=hY7BCoMwEETv-xXzAwtJFPVUsEXoSUpb8N6aasBDscHvb-wKShXc08zLzmyOztf27VtoTZWrR6FMTGfrmtaLvp7uMIbIvfDEAZqAIC-9HfLHp-j7wOLAAEb1i9kaHKkJ3ayHUUpCVdiVh2DKsUyceC6LgNKJSIDLOSOzuJLu4d2GLNvmnKTJ6mdzByMfmrzrwDpZQ03buUV_RP9FEX0B

**Surma** _“Queen’s Gambit”_ 2021 image/jxl 34 bytes https://jxl-art.surma.technology/?zcode=y0xTCNf1C1ewU9A15FJQyExT8APyYVyIAJBnZGoC5ioo6CoEp5YoGEB5QOlKoDSMC5IOV9BWMITzgQoqUBRgKkE1UxfoAKA0iAMSzklNLgGrBgA%3D

👀

Alright folks, little preview on a staging URL before I switch it live! Give it a try (_but please use responsibly!_) https://discord--jxl-art.netlify.app/

cc <@!794205442175402004>

**190n** _“Hi”_ 2021 image/jxl 56 bytes https://jxl-art.surma.technology/?zcode=hY5LDoAgDET3nKIXMIFCETdewjNowt6F3l6i0JRP4nLeTF8aD7hgBYNBAcQvIPkUONrg3siADGbAyDvNCGCCbT%2BThgRLwzsNnQsClqmuWJ5arPHYKw7Mgk0x9o9VLZGX3fMZ0OzVn1Grvi%2FNAw%3D%3D

best i could do :P

I like it!

Is it published anywhere else?

(than here)

no

The correct answer is "not yet".

Seems to work nicely! Let's go live with it 😁

https://c.tenor.com/RDEVGwkFmhIAAAAM/spam-spam-intensifies.gif

That's nice! Does it only publish to discord or is there also a "Gallery" page?

Switched to live. Should appear in the next couple minutes (Version `5d5d07...`)

**Surma** _“Stolen Piece of Art for Testing Purposes”_ 2021 image/jxl 41 bytes https://jxl-art.surma.technology/?zcode=NYvBCsJADETv%2BxXzA4GsVtCLUL1baIWexcZuYGmlhH6%2F2VJv897M3NQG%2BVrCJbT3J2JoFpXJXqbz5BT0gzeungidGOjAvMmHSzpxAHY4lgwQ6nWscwbF8y56z%2BXS%2B6ryuxvRMZkMpdgWf47MPw%3D%3D

lol at that title

**Paul97** _“zetatron”_ 2021 image/jxl 44 bytes https://jxl-art.surma.technology/?zcode=NYzBCsJADETv%2BxXzA4Hsbot4Eap3BRX2LDa2gdKKhH5%2F01Jv8x4zc1Zr5Ws9juF%2BeSKG209ltJfpNDoF%2FeCNkyfCQwyUmDd5dUl1dQjATrn2DBCauWuGARRz2k1xWEfFa1Vav4po15u0oMxhq%2FxFZF4A

**Paul97** _“zER”_ 2021 image/jxl 46 bytes https://jxl-art.surma.technology/?zcode=TYzLCsJQDET3%2BYr5gcB94WMjVPcKKty12NgGShUJfr9pqeBuzmFm9mqtvKzHls6HKyKd3iqj3UyfIwqRPnDHzj3jIgZOIczy6JJzSQQslLJngNF8umYYwDGnxVSHaVS9VtL0VUW73qQFr3KgufMzceO7f47r8AU%3D

**Paul97** _“Particles”_ 2021 image/jxl 43 bytes https://jxl-art.surma.technology/?zcode=NYzBCoJgEITv%2BxTzAgv9%2BxvSJbDuCSV4jtx0QSxi8fndRG8zH9%2FMxbzTrw840f3aIFH9M5386faZopG98cIZR2I81MGSDyu8BWQpSgK2lnNkgFHNfTWO4CQbaMOU9F%2B14RURg6n1g2sHjsNV2kGSBQ%3D%3D

**Paul97** _“dswef”_ 2021 image/jxl 42 bytes https://jxl-art.surma.technology/?zcode=TYvBCoJQEEX38xX3B2bhe4q4Cax9QQauJScdEIsY%2FP4u5aLdnHPPHD1Ge8WMRq6nGwq5vN3WGMKfK0n8gTsOqETRWUBT%2FskzpaayFmCnnAoCoGi3qV0WaN65Z8mRXc%2Bu5ElnPs1hI6vv359h%2BwE%3D

**Paul97** _“plants”_ 2021 image/jxl 41 bytes https://jxl-art.surma.technology/?zcode=NYxBCsJQDET3OcVcIIufQN0J1b2CFf5abGwDpYoEz2%2B%2B1N28x8wcPEZ7xYwidDleUej8dlvjFv5coUT%2BwB17iBJjsABrxpSnlCyqBGxUpEsAGP1n6pclqxtXcGmb2o4kj6r5NIeNzf8Kf%2B52Xw%3D%3D

tried 12 bit image

**Paul97** _“picture of arts”_ 2021 image/jxl 64 bytes https://jxl-art.surma.technology/?zcode=dZBPC8IwDMXv%2FRS5S2HpHNiLoCLzNEWFnoerW0GmjDI87MOb%2FWlRWW%2FJLy8vr90aW%2BiXrQAFO%2B%2BuINmxMbq2uTXPGpAxc4dTo1tYQ8QAOFy0HSrib4JCUj10Kj1QL8e%2BV27aUi0yBRxjz5Q2ZWV1AbFb61RHa5ig17gLznc67UFGYCU9GRnP9j86Z%2FXQN0sJMBZ%2Fo7TJi%2F6hNBSzXjK8sJw%2F82U0xZx3RhGIGcwYiBgF9cnfxP87R%2FYB

**Paul97** _“jjk”_ 2021 image/jxl 64 bytes https://jxl-art.surma.technology/?zcode=dVBNC4JAEL3vr5h7CO6apZegIuxkUcGeJTddCAsZpIM%2FvlmVzWS9zXsz72N3pzFXbyyBC3bZ3yBmp1qrCjPUrwo4Y%2FoB51o1sAGfAXhwVdhNxH%2BIFDHNHZLJkXAPzeG2KeQileBxS0mlixJVbsIGVStbUvHwd2QCgkAM2BgP2ZZIiYjWluk5Lz2Y%2BGhE925PdUcqMV0kdZabh9JKuK3mBe4MPu3o9v2LG1cUc4HBcuV08ucEPJxs7MdT9y8%3D

**Paul97** _“countryside nature”_ 2021 image/jxl 38 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMDTkCnIOUTDn8i%2FKTM0rSSzJzM9TMOTiykxTCChKLVOwUzDgUlDQVQhOLVEwNgQygRIVQFEjMyAbzAt39wDyDY2NwAIgtY5l6eHafuEKugih8NTM9IyS1BQFQ5gYhoyuoZERFwA%3D

**jjido** _“Wander of coherent light”_ 2021 image/jxl 39 bytes https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAwNOAKcg5RMDLi8kjNTM8oAQoYmXCFZ6aA5MwMDLi4MtMUkhXsFIzMuRQUgGw%2FINsYyFRQ0FXwcwUSZlBOOFh%2FagrILBA%2FOLVEQdfQAAA%3D

The anti-bot question was hard!

**jjido (with help from _wb_ to shave last byte)** _“Minimal Sierpinski”_ 2021 image/jxl 24 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOTKTFOoVLBTMOBSUAAya8JroBwFBV0FPygLKOEHFwZJBKeWoPEMueDiAA%3D%3D

The bot converts `_wb_` into _wb_

probably discord does that

probably because the bot doesn't do proper escaping

**jjido (idea by 190n)** _“Hi”_ 2021 image/jxl 77 bytes https://jxl-art.surma.technology/?zcode=jZAxDsIwDEX3nMIXqBSnSUgXBjpwAAbECDSILAhVGeD2BIhC6zoSm%2F3%2B%2F7aT%2FnToR7EJcfD3eIVOiHCBM6wBBUADOx8BjUx1wo%2BMf41yn7YAZWwGBbVOF1SgQTWBBVstZ3h%2BAQk8U0BrR4R3ZDseh%2BBvMZW4kHOyVXIh1ddNgtgpRiRraxZuOkcrz%2FtaG5SSjmB3s1MyNCsr%2FrltTz6R%2BpjfzpZ04ws%3D

not sure if i exactly need credit for that one :P

I hereby dedicate the idea of saying "hi" in a small JPEG XL file to the public domain.

Come to think of it <@228116142185512960> maybe people should agree to some copyright thing on the publish page? Since the bot is gonna repost their work, and it might be nice to have a library of these that are known to be CC BY-SA or some other nice license.

**\_wb\_** _“Hi again”_ 2021 image/jxl 91 bytes https://jxl-art.surma.technology/?zcode=jZKxDoIwEIb3PsW9AElb2oqLgw7uasJsoEoXY0wHfXsPKGeFimx333%2F%2F%2FUfoYXcCwbbO1%2FbuGxCcMXeBCjZIAbB8YsmxBMig7GBfZUGvSMemxCbTvO%2B7Oeuujbc1jmuCR%2BsxiJOrjdCDJ%2FTCFAEQksYQIpgXKoKfdUJ%2BYRKM4iNhuEjpqYKmF5qUKiZSa9s%2FzrWzN4%2BlTAwEdy55QpyLjcxiLZPygvi5jDT%2F%2Bbn9ePRnk0cI9ndVwHpl2NJDy9FmekHRbPIMemjsDQ%3D%3D

+1 on making it CC something by default

PRs welcome 😄

<@!794205442175402004> you still owe me a PR on the all the new directives

Right! Completely forgot about that

Will try to do it tomorrow

https://github.com/surma/jxl-art/pull/4

<@!164917458182864897> Do you want to whip up a PR adding CreativeCommons note to the publish page?

Animated JXL art! (347 bytes)

It seems it will be interesting. 🆒 But… how can it be viewed? 😜

Soon in chrome canary, I guess

The Qt plugin does it too, e.g. gwenview

i still can't read on nomacs with updated qt from appveyor and in firefox

I can take a look later today. Part of me thinks someone more lawyerly should take a look at this tho.

You can also decode it with djxl and it'll produce multiple png images

We should add apng output, would be more convenient (to also have the timing/looping info)

**jjido** _“Mimic”_ 2021 image/jxl 83 bytes https://jxl-art.surma.technology/?zcode=ZY8xD4IwEIX3%2BxVvN00oYthMcMHB1MGhOjZQoQkBg40TP94roDZxe%2B97d%2B%2Faonu0hq63A51HZ3tvvBt6pKQGfzJPT%2BTumPSEPbIkIYCtZhMkIKCta1pva5ZSrkxpZBREOZo6dEKGlorX0plfrEe6llVxGcR20eFKeeRILj6kxaspug4fMA8pHhHyh75wF7NoW%2BT%2FXG%2F4xdwSr0Q%2Fyzl4Aw%3D%3D

**jjido** _“Coloured petals”_ 2021 image/jxl 44 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOcKcg5RMDTgcswpyEjk4spMUwh391CwAwkpKOgqOJalO%2BbkKIA4QKmAotQykJwpiA%2BVDtf2C1cwBPOBKvyA0rqGEGm4gKEBTADJSF0LVDGwOboKplwwsfDUzPSMktQUBWMDAwA%3D

**jjido** _“Lovestorm”_ 2021 image/jxl 45 bytes https://jxl-art.surma.technology/?zcode=VYzBCsIwEETv%2BxVzl0BTLOhFiB701IoIORe6NguhlrL0%2BxujLXh882bmLNrxqAFHelyesHtqJuFBW5X3gJJcHENLJC%2F46w0n2IIAAzf3LkYYmyi5%2B8Rzlh%2F7835Xe9jMqVEnbb608VrfJvny8J%2FlG4OK1syz9EG5Q1kVCw%3D%3D

Wow, looks like a video game, possibly Dizzy or Metal Mutant. 👍

I demand an animated variant.

It was a bit difficult to get it right, but I am pleased with the result.

**jjido ** _“First act”_ 2021 image/jxl 39 bytes https://jxl-art.surma.technology/?zcode=C3IOUTDj4spMU6hUsFMw4FJQADKToUwwJ1w3PBzOV1DQVfBTMISyQbJIUhBJXUM4FyjvhyIPUhGcWoJFxMjUFGZhTXgNUJOhAcLG8NTM9IyS1BS4xboK7kWJKZmpeSUQ62CmAgA%3D

**jjido** _“Micro scales”_ 2021 image/jxl 90 bytes https://jxl-art.surma.technology/?zcode=bU%2BxDoIwEN3vK243TagUcDLBxcXg4FAdG0BoQsBgY2LCx3vVUmzC9t69u3vv5d2jVXC9HeA86ro3yuihxx0UgzmppwHQdyxxjxEgEnw7%2BCWSSek5IsMCU4et%2Bif9RJZ6SnoR6HbjUpuVicgSCHU6nuRE5yJasgRBZK2b1tQVQc6XeBKFe3UcVWXrIp8LbmG2iJ1H6V%2FSQ2Sx97LJGRcQVEniv675q8m7DlkWzuSGIjCxkpNHVOUD

> 39 bytes nice

Yeah I was surprised I could get such a complex pattern without the "special" operators like WGH, Weighted, AvgAll...

When I view this one on the editor it looks different. Guess it's because of alpha

In any case it looks awesome

Yep, Jpeg for previews is not always a good idea

Yeah, PNGs are just so darn big at this size and I didn’t want to force users to upload 2-3 MBs

I hope it’s a tradeoff y’all can agree with

that being said, I could increase the quality on the JPEG a bit, couldn’t I

Perhaps best would be to have a choice

Some of the weirder ones can suffer a lot from jpeg artifacts

wouldn’t that require a preview to make an informed decision? Also not sure what kind of additional processing Discord does

(at least on twitter some of the ones I shared had big quality issues)

could try lossless webp? discord supports that, should be smaller than png

i don't think discord processes image uploads besides creating lower-resolution preview versions

Discord shouldn't do anything if it's under 8MB

That would require another codec to be shipped, tho

Preview would indeed be needed for an informed decision. Is that much work?

I can switch to PNG tho, no biggie.

Even an uninformed decision would already be useful

ah yeah 😔

For stuff like the sunsets, jpeg is fine

wait can browsers produce webp data urls from a canvas? <:Thonk:805904896879493180>

not all. some can 😄

they all can produce PNG and JPG data URLs tho 😉

yeah tried on firefox, `canvas.toDataURL('image/webp')` still produces a png data url

also you couldn't guarantee it's a lossless webp

But for subtle sierpinskis and stuff, jpeg can easily just lose them during chroma subsampling or whatever

I would have hoped it would just fail...

ehh idk

pretty easy to just check the mime type of whatever it returns

Yeah I am aware 😄 I was mostly thinking of this as a preview, rather than a high-fidelity representation of the image. THat’s what the link was for in my head 🙂

No, we don’t do this “sound reasoning” in web development

Arcane and awkward APIs is what we excel at, really

haha

If you use jpeg please use mozjpeg

It can be on par with webp lossy and I think it would be an OK compromise

It's browser jpeg encoding I assume

So libjpeg-turbo

Yeah, I'm not gonna ship another wasm binary just for a preview image

animated jxl art will be the next thing, haven't tried it yet but when I get some time (not soon, extra long weekend is starting and kids are around for the next 5 days) I'll add support to jxl_from_tree for that

that will be a bit tricky for the online tool though

in chrome canary where animated jxl is natively supported it should be possible to view it

but wasm jxl decode is probably not ready for animation, right? or at least requires more js logic to display it as an animation

Animated jxl is supported by chrome canary now?

yeah, modulo bugs

basically encode with `--patches=0` and you should be good

for now

until encoder and decoder get fixes

or more precisely Chrome gets the fixes 😄

yeah in this case decoder is chrome as i dont think that usual djxl is actually even capable of decoding animated jxl stuff because i recall it lacked both proper apng and gif outputs

it can decode to multiple PNGs IIRC

o ok

Just ship mozjpeg with Chrome and throw libjpeg-turbo into oblivion, our PCs are fast enough

Browser encoding is not a very important/common thing imo

Decoding also could be better

just use Knusperli™️

I wasn't aware that browsers could do jpeg encoding.

Yes for canvas export https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toDataURL

it's a bit of a newish thing AFAIU

is there anything browsers _can't_ do? 😅

discord does strip exif data from images most likely to prevent people from accidentally doxxing themselves with Geoloacation data and stuff

oh yeah they do, that makes sense

i just tried and it does that on desktop too, thought it might have been mobile only but they probably do it on the backend

Nah, that’s an ancient API 😄

also, most of the time `canvas.toBlob(callback, "image/jpeg", 0.75 /* quality between 0 and 1 */)` is the better API

(can also do PNG. Might also do WebP if the browser supports it)

but obviously you have no control over any other parameters, and these encoders are usually optimized for speed rather than quality.

Been around since IE10 😄

No, Squoosh in general doesn’t support animated formats, so the wasm decoders we have don’t support that. But it could be added

hah, I didn't know it was that old, I was even doing some web development when IE10 came out 😛

nothing to do with images though

(btw, we use `toBlob()` in https://squoosh.app. That’s what “Browser JPEG” and “Browser PNG” are. So you can see how much worse they are :D)

**jjido** _“Elevations”_ 2021 image/jxl 46 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOcKcg5RMDLl8i%2FKTM0rSSzJzM9TMOYKz0wBShoaGhhwcWWmKSQr2CkYgBiVYIaCApAZrhseDuUpKOgq%2BCkYglkgGbgwRELXEMoByvkhyYFkg1NLMPgmxlwIKQhtZAgA

**jjido** _“Blue reef”_ 2021 image/jxl 36 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOcKcg5RMDTk8i%2FKTM0rSSzJzM9TsODiykxTSFawUzDkUlDQVXAsS3fMyVHQNQbygBKVQAkDIBPMCdcND4fzQYr9wJpgskhSEEldQzgXKO%2BHIg9SEZxagkXExJgLWRoA

**jjido** _“Lava”_ 2021 image/jxl 37 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOcKcg5RMDbi8i%2FKTM0rSSzJzM8DCnJlpikkK9gpGHIpKOgqOJalO%2BbkKOiaAnlAiUqghAGQCeaE64aHw%2FkgxX5gTTBZJCmIpK4hnAuU90ORB6kITi3BImJizIUsDQA%3D

Mmh, the preview is a bit "flat"? Doesn't pop as much as the original...

**jjido** _“Lava 2”_ 2021 image/jxl 45 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOcKcg5RMDbi8i%2FKTM0rSSzJzM8DCroVJeamBuQXKxgo6BoaWXBxZaYpJCvYKRhyKSjoKjiWpTvm5CjomgF5QIlKoIQBkAnmhOuGh8P5IMV%2BYE0wWSQpiKSuIZwLlPdDkQepCE4twSJiYsyFLA0A

**jjido** _“Frise”_ 2021 image/jxl 37 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOcKcg5RMDbi8i%2FKTM0rSSzJzM9TMOLiykxTSFawUzDkUlDQVXAsS3fMyVHQNQXygBKVQAkDIBPMCdcND4fzQYr9wJpgskhSYMlwBV0jOB%2BowA9FAUhJcGoJFhETYy5kaQA%3D

**jjido** _“Triangle army”_ 2021 image/jxl 47 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQsOAKcg5RMDTnci%2FKLy0IzshMK1Ew4uLKTFNIVrBTMORSUNBVCE4tUTA2BjKBopVAUQMgE8wJ1w0Ph%2FNBKv3AOmCySFJgyXAFXUM4H6jAD0UBzCZMERNjLmRpAA%3D%3D

**jjido** _“Entering the Emerald City”_ 2021 image/jxl 35 bytes https://jxl-art.surma.technology/?zcode=C3IOUTDl4spMU0hWsFMw5FJQ0FUITi1RMDUHMoGilUBRAyATzAl394BzQQr9FHQNoRyQLJIcRNYQzgNK%2B6FIw%2BzBFLE04UKWBgA%3D

**jjido** _“Blast off”_ 2021 image/jxl 39 bytes https://jxl-art.surma.technology/?zcode=C3IOUTA24vIvykzNK0ksyczPUzDl4spMU0hWsFMw5FJQ0FUITi1RsDAAMoGiFVBRMCdcNzxc1y9c2y88HChsABYGaQhX0DWEckCqkOTAAjV%2BNShCMDswRUyNLLgQIuGpmekZJakpCiZcyJoA

**jjido** _“Tentative”_ 2021 image/jxl 35 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOLyL8pMzStJLMnMz1Mw4%2BLKTFNIVrBTMORSUNBVCE4tUTAAsoCCFVBBMCdcNzxc1y9c2y88HChsABYGqQ9X0DWEckCqkOTAAjV%2BNShCyFagipgaWXAhRMJTM9MzSlJToA6AaQIA

if you feel like stress-testing your chrome canary

takes quite a while to decode that one

this is what it looks like if and when it manages to get it decoded 🙂

source:

``` #!/bin/bash for i in $(seq 1000 -5 20) do cat >> jxlart2.txt <<EOF NotLast Animation Duration 50 RCT 21 Orientation 3 if y > $i if WGH > 0 - AvgN+NE + 1 - AvgN+NE - 1 if W-NW > -1 if NW-N > -1 if N > 254 if c > 0 - Set -255 - Set 0 - W + 1 - NW + 0 - Select + 1 EOF done ```

(then remove the last NotLast and give it to a jxl_from_tree that understands `Animation` and `Duration`, which is currently only the one I have on my laptop)

How did you do the conversion to h264/mp4? Screen recording?

Decoded to png frames, then ffmpeg

I wonder how big the video would be if it was stored losslessly in AV1 (which allegedly supports RGB, not only YUV). I expect 10 % of the size of the current video. But yes, JXL is much more efficient of course. 😜

losslessly in AV1? I suspect that would be huge, at least 10x that lossy h264

the static bottom part is of course no problem, but the top part would look like noise to AV1

here is one testing the kAdd blendmode

first frame is just the sunset jxlart, next frames are all adding a constant -10 to blue and -3 to red and green (in 10-bit RGB)

do one that multiplies by 0.9 😄

or 0.95

multiplying by 1010/1023

it works 🙂

This is more cool

Maybe a sum of the 2

that's a relief xD

multiply by *-1010/1023*? 😛

you want a stroboscope? let me try that

oooh it looks fancy

epilepsy warning on that one

that's the second frame, if you want to get an idea

funky way to see how deep those darks actually are 🙂

That's true, I didn't realize it. My bad. But at least AV1 lossless is 0.75× size of H.264 lossless (and much slower encoding).

The top part looks like noise to everything except JXL. 🙂

Jon, will you add it to https://jpegxl.info/jxl-art.html ?

better to have animations separately I think, and probably best to make some smaller examples that aren't as challenging as that - that one is basically 200 megapixels to decode...

**jjido** _“Overlight”_ 2021 image/jxl 36 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOEKcg5RMDTg8i%2FKTM0rSSzJzM9TMObiykxTqFSwUzDgUlAAMpOBTEMgE8wJKEotc0wqdi0qgosqKOgq%2BLkq6CJ47kWJKSADgRZAtYVDjYOqBmKYaqCkH5IkSDo4tQSFj2IcTBoA

nice! doesn't even use WGH 🙂

**jjido** _“Pink dust”_ 2021 image/jxl 34 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOYKcg5RMOLyL8pMzStJLMnMzwOKcWWmKVQq2CkYcCkoAJnJQKYhkAnmBBSlljkmFbsWFcFFFRR0FfxcFXQRPPeixBSQgQomMG3hUOOgqoEYphoo6YckCZIOTi1B4aMYB5MGAA%3D%3D

Same with different colours

this one looks a lot more noisy though 😄

you can also change colors by changing RCT, and/or by enabling YCbCr and XYB (I think we have those... <@!794205442175402004> )

Yes, changing RCT is easiest - changing to XYB makes it ignore the bitdepth and use whatever default XYB scaling factors we have, which is a bit tricky to work with

and CbYCr is also a bit weird because it uses signed values (0 is 50% gray)

The noise is meant to add grit 😋

**jjido** _“Blue on blue signs”_ 2021 image/jxl 73 bytes https://jxl-art.surma.technology/?zcode=XU9LCsIwEN3PKeYChSS2XQpVihuJokLX0UYakLakg%2BjtTUpIajfhfWbevFz2N%2BQF7Ay1eqQOOYOTNbonRWboMYfqNXYK5EBHNREAmCd%2BcYsMEB18OMgdnMnZ6nd1n2pro4qYoazdk%2BjBqtYfcNlhrwl5YXwx7Uy5ML191fTHY1wJyYZQTUQtL5gXP6m6bDKfncX6QShZ6uI3xYpzJjawtudfCvgB

do you have that link?

Here

Current jxl_from_tree does have the `Animation` keyword, which turns frames into an animation

(using NotLast)

Default is 100ms per frame, you can change that with e.g. `Duration 500` for half a second or `Duration 40` for 25 fps

Duration can change per frame

There's also `BlendMode`, which by default is kBlend

Other values are kAdd, kMul, and kAlphaWeightedAdd

(oops I forgot about kReplace, lol)

**jjido** _“Hermetic writings”_ 2021 image/jxl 35 bytes https://jxl-art.surma.technology/?zcode=c8osSUktKMlQMOfyL8pMzStJLMnMz1Mw4uLKTFNIVrBTMORSUNBVCE4tUTAAsoCCFVBBMCdcNzxc1y9c2y88HChsABYGqXcvSkwBmaagawgVAylGUgIWqPGrQRFCtglVxNgAIaarEJ6amZ5RkpoCdQdMEwA%3D

This is the kind of cellular automaton behavior Stephen Conway would drool at, I imagine

That interesting region between chaos and structure

I don't understand what "weighted" does exactly, is it deterministic?

Of course it is deterministic, otherwise how could it be used for lossless compression 😁

But it is quite complicated

Also I would love a better name for "W-WW-NW+NWW" 😰

Weighted is a self-correcting predictor, based on 4 subpredictors (3 of which use their recent error as part of the predictor formula), where it is tracking the recent prediction error of them and using a weighted sum of the predictors based on how good they currently seem to be

WGH is the current highest amplitude subpredictor error, so it is quite related to the Weighted predictor

Yeah they seem to have similar effect in some formulas

Agreed, it is a bit long. It's basically GradientWErr, would that be a better name?

Or just WErr

(west error)

Yes <:YEP:808828808127971399>! the long one is fine

**jjido** _“Yes man”_ 2021 image/jxl 34 bytes https://jxl-art.surma.technology/?zcode=TYyxDkBAEET7%2FYrpZRPkaq3uFIqthcU1hJxGfDwrIdftvHmz7XaonkrNHnSJXQzrAkcURvSo4HICGK1G2PVQYRH2knmRpzdoQr13g%2B3BxUtM%2FOs3Xv5KQPo0zWX%2BEYZomOaoAwr65Bs%3D

that has to have squeeze...

ok, I was right 😄

Only <@!794205442175402004> can make non-blocky Squeezes 😆

Just have to keep the values close to zero

You should just pick an emoji for every predictor/test.

**dinosaurKiller** _“Meteor shower”_ 2021 image/jxl 61 bytes https://jxl-art.surma.technology/?zcode=dZGxCsMgEIZ3n%2BLfS%2BEMtTgVMjVTKHTwAVKbCE5FQvP2VQtBr9ZB7j7vfn9P4x5hgaTuJAbr5iV8Y8TlnnjjAspJTrcizWCqwI5kgTK8veyaOFUHwBGjiZtkOHaYVK54feq424A293YKOEBqfr25Dszof6lsKYrI%2Bllj8tPVyk33pZFyVGmUmqihSiR%2BbWkO%2B3XuvY%2BBEry2U6r%2Bo3MhyV%2B5t3wA

That's quite cool! Are you keeping that name "dinosaurKiller"?

**jjido** _“Hellectronics”_ 2021 image/jxl 51 bytes https://jxl-art.surma.technology/?zcode=8y%2FKTM0rSSzJzM9TMOYKcg5RsOTKTFOoULBTMOBSUAAyK6FMMCcZzoFzDaFcsEBAUWoZSMwALqigoKvgFw4kDJGEgCrDQcpMkdWBVAanlihgiuWkJpcoaCsYWiBbFe7ugeQYhHZdIwzLgVoNEY72A9lshDALw33IVnIhGWwJdi7MkQA%3D

**jjido** _“Cooling plate”_ 2021 image/jxl 51 bytes https://jxl-art.surma.technology/?zcode=8y%2FKTM0rSSzJzM9TMOUKcg5RMDTg4spMU6hQsFMw4FJQADIroUwwJxnOgXMNoVywQEBRahlIzAAuqKCgq%2BAXDiQMkYSAKsNBykyR1YFUBqeWKGCK5aQmlyhoKxhaIFsV7u6B5BiEdl0jDMuBWg0RjvYD2WyEMAvDfchWciEZbGpoyoVwJAA%3D

**\_wb\_** _“Cyborg Brain”_ 2021 image/jxl 33 bytes https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw5eLKTFNIVrBTMORSUAAyw3XDw3X9wrX9wsOBgkZAQQUFXYXw1Mz0jJLUFAVdQ7AISCFQ2gDMAXNr%2FGqQBFD1GCOLArEhF4YaSy4QNzi1BGgEAA%3D%3D

**\_wb\_** _“Alien OLED Subpixel Layout”_ 2021 image/jxl 31 bytes https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuVyyixJSS0oyVAw5%2BLKTFNIVrBTMDTgUlAAssOBbBATzPGDcxQUdBUcy9LDtf2ADGM0oXAgy5ALLuKn7eeqYMEF4oUraANZAA%3D%3D

**\_wb\_** _“Sierpinski's Stove”_ 2021 image/jxl 32 bytes https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuXiykxTSFawUzDkUlAAMsOBTAMgE8zxg3MUFHQVHMvSw7X9gAxjQ5xiMJFwBW2IkK4ClAkA

**\_wb\_** _“Diagonalization Argument”_ 2021 image/jxl 31 bytes https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuXiykxTSFawUzDkUlAAMsOBTAMgE8zxg3MUFHQVHMvSw7X9gAxDTCFjiBhcRBsiogs0D8wEAA%3D%3D

**\_wb\_** _“Simplified Diagonalization Argument”_ 2021 image/jxl 27 bytes https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuXiykxTSFawUzDkUlAAMsOBTAMgU0FBV8GxLD1c2w%2FIMEQV0FYwBonoAhWbcgEA

**\_wb\_** _“Thunderbolts and Lightning”_ 2021 image/jxl 31 bytes https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuXiykxTSFawUzDkUlAAMsOBTAMgU0FBV8GxLD1c2y8cyDI0MkET0waKmXOBRIDypgZcAA%3D%3D

**\_wb\_** _“Sierpinski Crystalization”_ 2021 image/jxl 28 bytes https://jxl-art.surma.technology/?zcode=Cy4sTU2tSuXiykxTSFawUzDkUlAAMsOBTAMgU0FBV8GxLD1c2w%2FIsDRDiPhp%2B7kqaCtYmnOBBIJTS4DKAQ%3D%3D

**\_wb\_** _“Abstracted Beach”_ 2021 image/jxl 35 bytes https://jxl-art.surma.technology/?zcode=C3IOUTA05eLKTFNIVrBTMORSUAAyK4BMAyBTQUFXIRyIDeFsbZgSP6ASUwOYIj8FXQs4Jzw1Mz2jJDUFqNiECwA%3D

**\_wb\_** _“Bureaucratic Alien Organigram”_ 2021 image/jxl 34 bytes https://jxl-art.surma.technology/?zcode=C3IOUTDk4spMU0hWsAOyFBSAzAog0wDIVFDQVQgHYkM4WxumxA%2BoxMIArig1Mz2jJDVFQdfQAFNQW8GSCwA%3D

The titles are half the fun

you're sorta overusing the word "alien" though

Yeah

Maybe I should give names to more specific alien cultures

not sure if that would be much better. maybe substitute with something giving equivalent ideas, like "extraterrestial", or some other sort of space terms

naming things is hard

wait how does one do things with that bot

**\_wb\_** _“Storage Facility #900913”_ 2021 image/jxl 37 bytes https://jxl-art.surma.technology/?zcode=i4h04uLKTFNIVrBTMOBSUAAyA4pSy6A8BQVdBceydD9tP1cFXSOoQHBqiYKRAVSxH5LK8NTM9IyS1BQFXUOYSLiCtoKhqQEXAA%3D%3D

**\_wb\_** _“Aurora Borealis Generator”_ 2021 image/jxl 39 bytes https://jxl-art.surma.technology/?zcode=i4h04uLKTFNIVrBTMORSUAAyA4pSy4A8AyBPQUFXwbEs3U%2FbL1xB1wgmEpxaomBuYABR7YekNDw1Mz2jJDVFQdcQJqKgrWBoYsAFAA%3D%3D

**neknekk** _“needles”_ 2021 image/jxl 27 bytes https://jxl-art.surma.technology/?zcode=C3IOUTDl8i%2FKTM0rSSzJzM9TMOEKLixNTa1K5eLKTFMId%2FdQsAOKKSjoKvi5KmgrGMOYukAmAA%3D%3D

Just click on one of the links to get the source code of the art, edit however you want, click Publish and it will appear here.

guess i need nuke of cache

Ah you found it already 👍

because these links dont have that button

yeah that was it.

**neknekk** _“purple slash”_ 2021 image/jxl 31 bytes https://jxl-art.surma.technology/?zcode=i4h04vIvykzNK0ksyczPUzDl4spMUwh391CwUzC05FJQ0FXwc1XQVjCGMXWBTAA%3D

this is p fun i think i'll play with it more later

**neknekk** _“mr. glitch”_ 2021 image/jxl 29 bytes https://jxl-art.surma.technology/?zcode=C3IOUTDm8i%2FKTM0rSSzJzM9TMOHiykxTCHf3ULBTMOBSUNBVcC9KTAHJK2grGBoDRUDSuuHhQHkQD0WFroKhERYxEy4A

You are going for record low bytes mmh? 😀

**\_wb\_** _“Frozen III”_ 2021 image/jxl 42 bytes https://jxl-art.surma.technology/?zcode=i4h04uLKTFNIVrBTMOBSUAAyA4pSy6A8BQVdBceydD9tv3AFXSOwAFStIZgDlXfMycEUMIaY5gdUrGsOMyw8NTM9oyQ1RUHXECYSrqCtYGhmwAUA

**\_wb\_** _“Probably Wide Gamut”_ 2021 image/jxl 46 bytes https://jxl-art.surma.technology/?zcode=i4h04uLKTFNIVrBTMOBSUIAyDYFMMKcCKg4CugrhUAkIWxeHKj8kVcGpJQq6ZgZQo%2F3g6oCccFSjUzPTM0pSUxR0jeBijmXpjjk5QHuMuaCKwhW0FYyBpgEA

**\_wb\_** _“HDR and Wide Gamut test image”_ 2021 image/jxl 49 bytes https://jxl-art.surma.technology/?zcode=i4h04nLKLElJLSjJUDA04uLKTFNIVrBTMOBSUIAyDYFMMKcCKg4CugrhCkZwdnBqiYKuoYGRMUxpJYpSP6xKITb4AVXqGhkYwHSGo1qSmpmeUZKaoqBrDBdzLEt3zMkBGgIRAioKV9BWMAEaAQA%3D

**Anonymous** _“sans”_ 2021 image/jxl 400 bytes https://jxl-art.surma.technology/?zcode=7Vw7ltswDOx9Cl1g39P%2F06ROv0UukE3WvYvk9vHLk0Rb5gfAgCt5F10sAUOIBAdDSJsf55%2BX96KpT9%2Ffzr%2FfL0VTnk7nX8Xf4ltRnopi%2Fmd1%2Fef6o%2F7%2FY%2F3ZzD%2FXC%2B16Yb3U3VxaL%2FZ3F9fLw%2BbyemN8uLHemjy3XPCl9667XwXuO4s6aOFsmoiNs2qjVs6uS9g5yz5p6WwHgq2zHknWzn4i2rtMKskezqdi%2BDivmuXl%2FBqmn%2FNs2Z7OtxP4Ou9e5O38B6G%2FQxjFCA5jAjCK4qV4fbtcJ7KDUK6x%2FAnSCxuGmbr5Hsshlaf945lnp%2F9cK7UgtTCS5qprrbteTBrx4LHMq9UeJI3hrFlwemOcTLGgccwr1BwgZatKJWfLw%2BTsgjQY9z4B9%2BJxYDEs2bLzRp4UNnKtsZErpeJTdVobuRoVNt%2BCNSlg6ZHeFq9WwtMlwS3mqIipS7H6ZJszTt0YdePTi80kZK44sBiQ8Rc23bHiDkeouCrSuaqVKm6rVnE7xYo7alZcpfqt2erZIjaHr7gL6qSKmquS56jleWLVjlM7Rs347GD82Q%2FG2PjysQFtASkLsIM7u4%2BoLIE0hXUC9uoEVIfvBOTQJW0WXTIq64dceief4smjeazXYr0W67U8W68FGVs67syY5Q7irdtRvME9pRHXbpPK21illpKCaFiQFFtKtap0a45ZFOy4bsf1Zziuy8eVjSksTeLCBLzgh4oSWJLgaqJRSXReQmuxvh7fm8w2ma0zrmxMyXgi3hSypljKA6SHtaTQrw9xjtJgJ1Mxz6JiZOPxxxLsetGeF%2B54sUJCdjt2IkV3Or7Prcoet8pKxuKOw96ggteiokIsPHMsz9OIu42IXsC%2BYWtAvQC%2FLoZORaYXTC%2Bg4%2FDGYHIXm7kEFLSEJDsZNaePoizkbw50yG7c7XBkkudrSx7uGBx81hFJxl%2Fs8xrrIzDZ51qLVy8ksElMYMAfHAgpBD1zmUb5ShqFh0%2FHZhANi2aYb6j4FCMhGBm9SMlF%2FqIJIRaMVkxTfF5NwcGm4s7Z9lJlIJqaQzQDj2gmNs8IGlXML8Ol5yF52wc5Q2E8s3hXJn5M%2FOwmfui4NEwqG5K5kMGELB5ksiCfAyUMKOM%2FKfvJuQ9hPoz3TJ2ZOuPh0jApeDRuIzIbmdc4zMPjHO7%2B5%2B96yV632ivHpOClsSh5TspyYgeEnuGc%2FOb1Hri5zc9sY1oOXhorhZPOYkIOk14UUDt39C4apyXPy1xu3hpTxrFSOHGMVI4mM5Sy%2BLQl%2F6htmcKI%2BcenKzFZ6amiTFT%2BnIj7h30jjx99bZHqtKfnLeeSx3xDfsGZiMxDfBZSc5BnRcN%2Bfp%2FA4wVPGjH9H58P7RUL%2BfjsvY8TUJphDRh7dr0V8ds%2F2nrC9%2F5H0qE%2Fhwg%2Fp8aM%2B2y3dg%2Fhej4h938cHnombEYf7e5tNuE9dAN9nTh%2F%2FNIZ29rc3r8LZxvKFugWxt37Bw%3D%3D

lol

DAAAAAAMN

lol nice

wait that image would be smaller as an uncompressed bitmap <:kekw:808717074305122316>

This image is 32x30, so uncompressed 1-bit would be 960 bits...

this is just encoding every pixel with run-length encoding in the tree, isn't it?

yeah 960 bits = 120 bytes and the jxl is 400 bytes

Ah, ok.

Got it down to 311 bytes, just add `Bitdepth 1` to the header and change every `255` to `1`.

some day perhaps jxl images will be smaller than their uncompressed equivalents

Even further down to 123 bytes, simple `cjxl -m art.png art.jxl` encoding was enough.

Surprisingly `-m -s 9` was bigger than `-m` by 1 byte...

animated spline (jxl: 9581 bytes)

<:BlobYay:806132268186861619>

NICE!

how did you make that?

I want you to push all your quick and dirty hacky scripts to the libjxl repo 🙂

does that animated spline kind of spell JXL, in a way?

or am I seeing things now

I don't think it's a script in this case

well something has generated those spline coords and something has generated that bitstream

I don't think it was <@!604964375924834314> using a hex editor, right?

correct, I hardcoded the spline in `FindSplines` in `enc_splines.cc`

made `SubtractSplines` a no-op, and then encoded an “animated” 320×320 black background

How did you make it know the frame idx?

I would have used a static variable 😛

Right. When hacking, anything goes.

how do splines work?

they're catmull-rom splines with an arbitrary number of control points, a color that can evolve along its arc length and is described using a 1D dct32 (represented as 32 5-bit coefficients each for X, Y and B), and has a variable thickness that is described using another 32 5-bit dct coefficients.

so you do need 80 bytes just to describe the color and thickness; the control points are entropy coded so you can have quite a few in relatively small space

Are splines planned to be applied automatically during normal encoding in the future, or will they only have to be created manually?

what is splines