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

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

#111

Post by LoSboccacc »

stefanpie wrote: post #73
gregmac wrote: post #41

One of the nice 'features' of QR codes is they're instantly recognizable as QR codes due to the 3 registration marks, and so it's obvious you could pull out your phone and scan one (not that anyone does that). JAB codes just look like a jumble of colored pixels -- it's not obvious it's encoded data, if you were to see this "in the wild". It kind of misses another potential feature, which is registration marks could a…

QR codes also will always work in grayscale.

they also work in two tone colors, so they don't ruin a billboard/leaflet aesthetic (even if there are a lot of reader out there that get confused by a white pattern on dark background code, even if the spec allows it)

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

#114

Post by neetdeth »

derefr wrote: post #110
neetdeth wrote: post #62

Earlier quoted context omitted.

I can recognize those features. Sure, you need to look for them, but why would anyone care to? Surely after encountering only a few RGB codes the average person will have no trouble inferring that a jumble of colored blocks against a white background is likely to be encoded data. Same "training process" as needed for QR codes - although in this case the quiet zone is not needed, so you _could_ use these in a delibera…

Yes, you're able to realize that any given RGB mess-of-pixels printed somewhere is "likely to be encoded data", but maybe, you'll think, there might be multiple standards for RGB-encoded data (there are) and so, what standard does this code obey? Is it one your phone can parse? QR codes are able to be recognized as QR codes, which means you're able to think "I could definitely scan that", rather than thinking "that i…

We're thankfully not cursed with a multitude of competing standards for bilevel monochrome 2D codes (they do exist, but 90+ percent of everything out in the wild is QR). I don't think an end user is going to be competent to understand the differences between them in any case. The standard operating procedure will continue to be "point the scanner at it and hope for the best." If multiple competing standards do become popular, the most likely result is that scanners support all of them and we just eat the software bloat.

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

#115

Post by 1ris »

noir_lord wrote: post #83
Macuyiko wrote: post #50

Yet again another barcode / QR proposal. Can't speak for the Americas, but here in Europe QR codes aren't used that much, I feel, except maybe for mobile payments. Compare this with China, where QR codes are in literally every store, each taxi driver has a printed one nearby and even street food cards use them to pay. I can't see this one becoming popular, given how many are printed on glossy / dirty paper (often usi…

Every single container, crate, item and slab of raw material at work has a QR code attached. They are fantastic for that use case as with high levels of error correction you can read them in a rain storm when one corner is missing. That and every UPC scanner in existence seems to read them no problems.

At my work everything has a bar code on it. It seems carry have enough information.

High capacity code have probably different applications. I haven't seem them anywhere yet, but there are several products around them. I think printing a public key with such a code on a business card would be cool.

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

#116

Post by ttsda »

theclaw wrote: post #108

An eight-colour code does not seem smart for printed codes where most printers use only four inks. A colour code using cyan, magenta, yellow, white and black might be more reliable (although yellow could easily be confused with white). The PDF suggests 256-colour codes are supported, but that would mean luminosity is a factor, and I can't see how that would ever be reliable if the code is intended to be scanned with…

The codes have palettes embedded to adjust to different lighting and ink.

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

#117

Post by nine_k »

nimbius wrote: post #91

for those decrying the limited use of 2d barcodes in the US or in europe, you've never set foot in a manufacturing environment. 2d barcodes are used for cradle-to-grave inventory tracking by systems like Glovia and SAP. everything from transmission gears to soda pop are tagged during manufacture with numerous 2d barcodes that change at different stations, and at different times. it doesnt matter what your new standar…

I suppose that color-based codes have more density per "pixel" (2-3 bits), so they can be used to encode relatively large amounts of information. Try encoding 1kb as a QR code; it will become pretty unwieldy, if it's possible at all. Think about the size of a reasonable cryptographic public key; would it be nice to have it optically readable sometimes?

Tagging things during manufacture is a different application area, with different constraints and requirements. Bar codes are not gone because QR codes are here, QR codes won't be gone because color codes appear.

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

#118

Post by evan_ »

omershapira wrote: post #25

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

it doesn't really even describe the relationship accurately- the "slave" symbols aren't doing anything for the "master" symbols, they aren't being delegated to or controlled by the "master" symbols.

"Beacon" and "frame" would describe them better, or even "lord" and "serf" if you really need there to be a power dynamic

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

#119

Post by [deleted] »

rwmj wrote: post #53
neetdeth wrote: post #51

Earlier quoted context omitted.

Technical specification is here: https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publicat... Every JAB code has four registration patterns in the corners, as well as multiple color pallets at fixed locations.

I think OP's point was that humans can't recognize those features. Edit: I should have said untrained humans .

[deleted]

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

#120

Post by melq »

nimbius wrote: post #91

for those decrying the limited use of 2d barcodes in the US or in europe, you've never set foot in a manufacturing environment. 2d barcodes are used for cradle-to-grave inventory tracking by systems like Glovia and SAP. everything from transmission gears to soda pop are tagged during manufacture with numerous 2d barcodes that change at different stations, and at different times. it doesnt matter what your new standar…

>it doesnt matter what your new standard claims to achieve, it is useless without industry adoption.

You have no idea what this person's intentions are, and calling their work useless because Toyota, Honda, Yamaha, Ford, and Dell don't use it is obnoxious.

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