I'd contact the devs about that. they will work hand  and foot to help you get 
it working for you.

S
On Jul 8, 2010, at 5:08 PM, Chris Moore wrote:

> I totally agree, it works great with CDs but no good on tins, jars or 
> bottles.  It managed to read a few food items but its very hit and miss and 
> something you would use if it is a last resort .
> 
> If you want audio labels then get the RNIB Pen Friend.
> On 8 Jul 2010, at 23:03, Bryan Smart wrote:
> 
>> I'm writing to share my experiences with Digit-Eyes.
>> 
>> I tried it on my iPhone 4, with several bar codes, and it didn't recognize 
>> even one of them. I don't mean that the code was located, but not 
>> recognized. I mean that the code was not even detected as being in the 
>> image. I'd tap the scan button, and the constant clicking would begin to let 
>> me know that scanning was in progress. I was scanning in a brightly lit 
>> room, and the screen curtain was not on. Rotating the containers in front of 
>> the iPhone camera, with it held about a foot away from them, produced no 
>> results. I had a sighted friend deliberately place the bar code in view, 
>> something that I would have not been able to do on my own, and it wasn't 
>> recognized, either. We just kept trying different angles, and rotating, but 
>> all we got was more clicking from the Digit-Eyes scanner.
>> 
>> I had some experience with creating a system like this several years ago. At 
>> that time, CCD cameras were not as accurate. Even so, for best results, we 
>> determined that a 3D laser scanner would be required in order for bar codes 
>> to be detected in the way that a blind person is likely to present them to 
>> the scanner: at angles, in shadow, etc. This is the technique used by other 
>> commercial systems like the ID Mate. I was lead to understand that this 
>> wasn't a concern with Digit-Eyes, due to the higher quality camera in the 
>> iPhone 3GS and iPhone 4. However, based on my results, I'd say that this 
>> isn't so.
>> 
>> Perhaps Digit-Eyes works better with dedicated labels, but, if I were to 
>> make dedicated labels, I'd just create Braille labels. I realize that 
>> everyone doesn't read Braille, and so audio labels still might be of use to 
>> some people. However, the advertised function of being able to read bar 
>> codes seems to not work, or else, it might work, but requires a level of 
>> alignment precision that I've not been able to achieve. I'm usually quite 
>> capable when it comes to reasoning through these types of situations, so my 
>> conclusion is that I've either overlooked something profound, or else the 
>> level of alignment that is required for a good scan is grater than most 
>> blind people will independently obtain without assistance. If you need 
>> assistance, you might as well ask the sighted person what is on the label. 
>> *shrug*
>> 
>> I'd like to hear the experiences of others. However, I can't personally 
>> suggest that anyone spend the $30 that is charged for this app if they 
>> expect to use it as a bar code scanner.
>> 
>> Bryan
>> 
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