Read 1D barcodes (Code 39, Code 128, etc.) and 2D barcodes (PDF417, DataMatrix, QR) from image and PDF files. Decode and extract user information form US and Canada driver licenses. Automatically repair images: auto-deskew, auto-rotate, etc.
ClearImage SDK a development toolkit to add barcode recognition to your application.
Develop a Web Service, console, or desktop application in a language of your choice, including C#, C++, Java, PHP, and others.
Deploy your application to your preferred target or device, including a physical computer, Cloud VM, container, or microservice.
Read 1D barcodes from a page
This example reads code 39 and code 128 barcodes. Set barcode types used in your application. Setting reader.Auto1D=true; automatically finds barcode type, but it is slower and is not recommended for production.
This example uses some of the most popular image-processing functions. In a production application, the specific sequence of functions should be selected based on specific application needs.
using Inlite.ClearImageNet;
static void RepairPage(ImageEditor editor) {
editor.AutoDeskew();
editor.AutoRotate();
editor.AutoCrop(10, 10, 10, 10); // Crop to 10 pixels on each side
// editor.AdvancedBinarize(); // Convert to bi-tonal an image with complex background patterns
editor.ToBitonal();
editor.BorderExtract(BorderExtractMode.deskewCrop); // Deskew and crop based on black border
editor.RemovePunchHoles();
editor.SmoothCharacters();
editor.CleanNoise(3); // Clean black noise of 3 pixels
// editor.CleanNoise // Clean black and white noise
// (CleanNoiseFlags.black | CleanNoiseFlags.white, 3, 3, 10);
editor.ReconstructLines(LineDirection.horzAndVert);
}
void Repair_page(string fileName, int page, string fileOut) {
try {
using(ImageEditor editor = new ImageEditor()) {
editor.Image.Open(fileName, page);
// Do image repair
RepairPage(editor);
// Save results
editor.Image.SaveAs(fileOut, Inlite.ClearImage.EFileFormat.ciEXT);
}
}
catch(Exception ex) { Console.WriteLine("Exception: " + ex.ToString()); }
}
Image Processing - Repair all images in a multi-page file
This example repairs all images in a multi-page file and saves the result in the fileOut file.
using Inlite.ClearImageNet;
private static void _OnEditPage(object sender, EditPageEventArgs e) {
// e.cancel = true; // Abort file processing
// e.skipPage = true; // Remove this page from the output
RepairPage(e.Editor); // See this method in a single page example
}
void Repair_file(string fileName, string fileOut) {
try {
using(ImageEditor editor = new ImageEditor()) {
bool ret = editor.Edit(fileName, _OnEditPage, fileOut, ImageFileFormat.outputFileExtension, true);
}
}
catch(Exception ex) { Console.WriteLine("Exception: " + ex.ToString()); }
}
Image Processing - Repair all images in a stream
This example repairs all images in an input stream and saves the output stream using a specified file format. Streams contain the content of a single image file. For example, if a file is stored in a database.
using Inlite.ClearImageNet;
private static void _OnEditPage(object sender, EditPageEventArgs e) {
RepairPage(e.Editor); // See this method in a single page example
}
Stream Repair_stream(Stream stream, ImageFileFormat output_format) {
try {
using(ImageEditor editor = new ImageEditor()) {
MemoryStream msOut = editor.Edit(stream, _OnEditPage, output_format);
return msOut;
}
}
catch(Exception ex) { Console.WriteLine("Exception: " + ex.ToString()); return null; }
}