The PDF417 barcode is usually printed at an X to Y ratio of 1:2 to 1:5, with 1:3 being the most popular. The Y dimension is the height of each row within the PDF417 symbol. The X dimension is the width of the narrowest bar in a printed codeword.These characters cannot be viewed or printed and therefore it may not appear to be present, unless an application is used such as IDAutomation’s Barcode Scanner ASCII String Decoder.įig. In IDAutomation products, if ApplyTilde if set to “True” or “1,” the format ddd is used to specify the ASCII code of the character to be encoded. There are two ways to extract data from a driver license for a machine: Using OCR technology to recognize the characters printed on an ID Use barcode recognition technology to decode the PDF417 symbology and then parse it into human-readable formats Generally speaking, the latter is more accurate and cost-effective than the former. The content that is entered in the barcode has no additional control digit or similar mechanism, but the barcode reading as described above is reliable. A barcode by standard has a number of code words that ensure that the barcode content is properly read and primarily used to avoid errors when scanning due to barcoding, poor condition, and like.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |