This step-by-step tutorial will guide you to build a complete application that analyzes a Code 39 barcode from an image and output the value, type, location and confidence to the terminal.
For this tutorial, you can use any text editor (vim, gedit, emacs, etc.).
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const bx = require("barcode-js");
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const filePath = "filePath/fileName.bmp";
const params = {
type: bx.BarcodeType.ALL
};
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const analyzeBarcodes = async (filePath, params) => { try { const results = await bx.analyze(filePath, params); console.log(JSON.stringify(results, ["type", "value", "confidence"], 2)); } catch(err) { console.error(`There was an error processing this image\n${err}`); } } analyzeBarcodes(filePath, params); |
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$ node BXDemo |