Barcodes..

Sukh

Sukh

Sukh

Soldato
Joined
29 Jan 2007
Posts
3,596
Location
Chelsea
Its a long shot but I have a barcode, on my university library card, and want to create a digital version of it to store on my phone (n95 black) so when i forget my card i can swipe the screen and still gain access.
Whats the easiest way to go about this, tried some online generators, but dont know what value was used to make the barcode. I have several numbers on the card but none of them make the lines the correct way.
 
Doohickey said:
Will the barcode scanner even be able to scan the phone screen?
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That would be my main concern - the barodes work by reflected light, and the phones work by lighting the rear of the display, i doubt you'd get enough reflection from it.
The other problem I can foresee is that the barcodes can require quite a high resolution, and i'm not sure how the phones display will manage that (some barcode readers are much more picky than others in regards to how small/large the barcode they are reading is).


As suggested previously, rather than trying to duplicate the barcode it's probably muh easier to scan/clean up the barcode.
 
http://www.barcodemagic.com/ use this to make pretty much anybarcode. If the trial version doesn't let you save then just do a screen dump and crop it in paint or something.

Use barcodes all the time at work but haven't managed to get one to scan in from a monitor (CRT or TFT)
 
If scanning the phone doesn't work and you still want a back up barcode for when you forget your card, then you could scan the barcode and print it out on a little sticker or piece of paper and stick it on the inside of the battery cover on your phone, less sophisticated approach yes, but would probably work :)
 
I see, i wanted a geek solution, but I might just photocopy the plastic card and hope it works
 
I'd wager its probably a code 3 of 9 barcode and these is a basic symbology barcode. takes the format of
Code: 
*BARCODETEXTHERE*
That wil give a barcode that reads BARCODETEXTHERE when scanned.

But the best way is probably scan, clean up and stick on the phone. But it might wear I did this with my phone number and it lasted about a month.
 
A barcode reader should be able to detect barcodes on the screen because i remember watching an advert where you go to a website, download special offers and such for certain items, and to use them you simply get your mobile phone to display the barcode for the coupon which is scanned in at the till with the rest of your items.
 
Can't you just use a barcode scanner to scan the code into wordpad and then use a barcode making program (Free, Google it) to make a new barcode and save it as a jpg?
 
I tried this in Tesco on those self-scan price checkers around the store, it couldn't read the code up off the screen of an N95. I tried a scanned in image and after that didn't work, I tried taking a picture in store and scanning that off the screen.

I assumed it was because the screen wasn't reflecting the appropriate bits back as the laser was getting a uniform reflection of the screens surface.
 
~It depends on the type of barcode reader. If it's a 'hardware' laser barcode scanner then it probably won't read it. If it is a video/still camera type reader (i.e. it takes a picture and decodes the barcode using software to read the image data) then it probalbywill. They are quite amazing what they can read.
 
so when i forget my card i can swipe the screen and still gain access.
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i would be very surprised if the library staff would allow you to enter the library using this method. Your photo is on the card right?
 
Justin said:
Why don't you just not forget your ID, can't be that hard can it?
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I think you are missing the point, people forget things, this is a work around.... I think i know what the barcode value is but cannot get an online tool to churn out a identical result, didn't know there were different formats of barcode.
 
whitecrook said:
~It depends on the type of barcode reader. If it's a 'hardware' laser barcode scanner then it probably won't read it. If it is a video/still camera type reader (i.e. it takes a picture and decodes the barcode using software to read the image data) then it probalbywill. They are quite amazing what they can read.
Click to expand...

Thats a good point. I and I'm sure others on these boards have probably used a phone with a camera and appropriate software to read barcodes.

A number of Nokia N-series sites are using barcodes to allow people to scan them using the camera on their phone to take them to a download for their handset.

http://mobilecodes.nokia.com/
 
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