31 lines
1011 B
TypeScript
31 lines
1011 B
TypeScript
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import { extractBytes, initWasm, TesseractWasmBackend } from "@kreuzberg/wasm";
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async function demonstrateOcrCaching() {
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await initWasm();
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const backend = new TesseractWasmBackend();
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await backend.initialize();
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console.log("Tesseract WASM backend loaded - models cached");
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const imageBytes = new Uint8Array(await fetch("page1.png").then((r) => r.arrayBuffer()));
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console.time("First OCR (with model load)");
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const _result1 = await extractBytes(imageBytes, "image/png", {
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ocr: { backend: "tesseract-wasm", language: "eng" },
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});
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console.timeEnd("First OCR (with model load)");
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console.log("Model cached in memory");
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const imageBytes2 = new Uint8Array(await fetch("page2.png").then((r) => r.arrayBuffer()));
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console.time("Second OCR (model cached)");
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const _result2 = await extractBytes(imageBytes2, "image/png", {
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ocr: { backend: "tesseract-wasm", language: "eng" },
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});
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console.timeEnd("Second OCR (model cached)");
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}
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demonstrateOcrCaching().catch(console.error);
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