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JAB Code – A high-capacity 2D color bar code

github.com

31–40 of 183 posts

Re: JAB Code – A high-capacity 2D color bar code

#31

Demo ( https://jabcode.org/create/ ) worked on the first example I tried, then I tried using advanced settings and it threw an "Error Something went wrong" every time. This was in Chrome.

It seems to stop working at particular text lengths. Sort of a bummer when you want to see how much text it can accommodate in a square, compared to a QR code.

Re: JAB Code – A high-capacity 2D color bar code

#32

I wonder if the 'Master'/'Slave' terminology is necessary here? Aside from being problematic, does it really describe the setup more than 'Primary'/'Secondary'?

Is it problematic outside of the US? That said, possibly not the most immediately illustrative choice of terms; master/slave usually implies who's in charge, not a spatial relationship.

Re: JAB Code – A high-capacity 2D color bar code

#33

Every screen and printer will display/print colors differently. This is not a good idea.

Every HN comment thread is full of armchair critics. Maybe the designer actually thought of this! If the colors are quantized into a constellation, even significant error could be corrected.

Well, I hope the designer accounted for multiple colors failing to displayer properly. The pink and red are impossible to discern for me. My bank uses colored QR style codes and they're impossible to use with (very common) blue light filters active in the evening hours.

Re: JAB Code – A high-capacity 2D color bar code

#35

I wonder if the 'Master'/'Slave' terminology is necessary here? Aside from being problematic, does it really describe the setup more than 'Primary'/'Secondary'?

Why is that problematic?

https://en.wikipedia.org/wiki/Master/slave_(technology)#Term...

Re: JAB Code – A high-capacity 2D color bar code

#36

In case anyone missed it, a very interesting link explaining how QR codes work was posted on HN a few days ago[1]. I wish there was some explanation like this on this JAB code and how exactly it gives high capacity over the b/w code. [1] https://www.nayuki.io/page/creating-a-qr-code-step-by-step

Well, there is this:

> The technical specification of the barcode is available as BSI TR03137 - Part 2[0]

It's apparently research done by the German Federal Office for Information Security.

[0] https://www.bsi.bund.de/EN/Publications/TechnicalGuidelines/...

Re: JAB Code – A high-capacity 2D color bar code

#37

I wonder if the 'Master'/'Slave' terminology is necessary here? Aside from being problematic, does it really describe the setup more than 'Primary'/'Secondary'?

Agreed. It's unfortunate but understandable we still use this terminology for existing technologies... but we absolutely should not be propagating it to new ones.

Embarrassing story time: I was working in Brazil on a database, and used the Portuguese translations for "master" and "slave" in a technical meeting (I speak Portuguese). The whole room looked at me in shock, and my manager politely corrected me: "um, we just use the English terms 'master' and 'slave'... if you translate them, it's pretty racist."

Re: JAB Code – A high-capacity 2D color bar code

#38
My bank uses some colored pixelcode not unlike this one. I scan a code on my screen using a little device that I insert the bank card into.

It's cool, it works well and it's fancy, but every time I do banking I have to turn off my computer's "night light" mode.

I assume lots of people use color filters for various good reasons. Are these codes resisent to that? Else I'd truly prefer oldschool monochrome QR codes, to be honest.

Re: JAB Code – A high-capacity 2D color bar code

#39

I wonder if the 'Master'/'Slave' terminology is necessary here? Aside from being problematic, does it really describe the setup more than 'Primary'/'Secondary'?

Why is that problematic?

Because people cannot separate the abstract concept of slavery to the actual historical happening.

Personally, I want to be a master to my mechanical slaves (tools, dishwashers, computers, robots) and can't wait for a future where machine-slavery is so pervasive that no humans need to work anymore.

Re: JAB Code – A high-capacity 2D color bar code

#40
post #32

I wonder if the 'Master'/'Slave' terminology is necessary here? Aside from being problematic, does it really describe the setup more than 'Primary'/'Secondary'?

Is it problematic outside of the US? That said, possibly not the most immediately illustrative choice of terms; master/slave usually implies who's in charge, not a spatial relationship.

Slavery/human trafficking is not a US-only thing.

https://en.wikipedia.org/wiki/Slavery_in_the_21st_century

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