The ErrorCorrectionLevel enumeration has two types of values.The target framework is.NET Framework (net462) and.NET Standard (netstandard2.0).
Android Implementing 417 Decoder Code Image FromThe encoder library allows you to create a PDF417 barcode image from a text string or a binary (byte) array.How to integrate the encoder library to your application and produce a barcode image. The target framework is.NET Framework ( net462 ) and.NET Standard ( netstandard2.0 ). Windows form application and console application targeting.NET framework ( net462 ) and.NET Core ( netcoreapp2.2 ). Both allow you to explore the library and produce PDF417 barcodes. It takes advantage of the compression and filtering of the PNG standard. Saving barcode image 564 by 232 pixels takes 617 bytes by this software. The barcode documentation and specification can be found in the following websites: Wikipedia provides a good introduction to PDF417. An early version of the specifications is freely available to be downloaded at this website. I strongly recommend that you download this document if you want to fully understand the encoding options. The attached software converts the text or binary array into a PDF417 barcode Bitmap image. If the input data is a text string, it will first be converted to a binary array using ISO 8859-n standard as defined here. This conversion process divides the input bytes into segments. Each segment type is compressed: text as 2 data characters per codeword, byte as 1.2 data characters per codeword and numeric as 2.93 data characters per codeword. To ensure barcode integrity, error correction and detection codewords are appended to the data codewords. Each codeword is converted to a symbol, sequence of alternating four black and four white bars. Make sure the image size or aspect ratio is appropriate for your application. CommandLine.Encode( col4 t pathInputTextFile pathOutputImage.png ). This object can be reused serially to produce multiple barcodes. The program has an algorithm to divide the data input into segments. However, you can restrict the segmentation to only bytes or only text and bytes. Error correction level allows you to control the quality of the barcode.
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