Re: [TwinCLinG] About bar codes
- Raghuram Vijapurapu wrote:
> Just a quick pointer, there is a toolkit available for reading barcodes.Thanks for the url it solved my problem.
> Probably Mr. Jain would like to have a look at it:
> Further, if you want to develop some code or wrapper over it, it would
> be a *good_thing*.
> *[Dr. Atul Negi on Mon, Dec 01, 2003 at 11:43:51AM +0800]:
>>On 29 Nov 2003 email@example.com wrote:
>> Message: 3
>> Date: 29 Nov 2003 14:50:30 +0530
>> From: suman <mansu@...>
>> Subject: Re: Query over Barcode...
>> On Tue, 2003-11-25 at 13:28, Vardhman Jain wrote:
>> > Hi,
>> > Has any one tried to develop a barcode read/write using application. I
>> > want to try one. Can some one tell me if i require some special hardware
>> > for writing reading barcode or a simple printer can print the code. Also
>> > is a simple scanner sufficient for scanning the code. I heard that some
>> > software are available for generating the barcode number jpeg, please
>> > confirm if this is possible.
>> > vardhman
>> i donno of anyone which can actually read a barcode on linux but there
>> is a software called kbarcode which generates barcode slips which can be
>> then attached to books.
>> but i never tried it.
>>I can support anybody who would like to develop something like reading
>>a bar code. My support will be at the image processing level.
>>Basically you need to scan the barcode using a 200 dpi scanner,
>>it depends on the smallest dimension of the bars to be read.
>>All you have to do is to write code for a good edge detection method.
>>(such code also exists, just google for it.) Each edge which you
>>get in the image is one side of your bars. You need to count
>>the distances between the edges to know whether its a thick bar
>>or a thin bar. To be sure you can also get the size of the whitespace
>>between the bars. Further knowledge of the bar code structure
>>is needed and then you have some thing functional.
>>Atul NEGI, Ph.D.
>>Office: Room M209
>>Dept. of Computer & Information Sciences, University of Hyderabad,
>>Gachibowli, HYDERABAD, 500 046 INDIA
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