Add ability to load language from a File (Blob/Stream etc) about tesseract.js HOT 4 CLOSED

If you initialize Tesseract with language eng (for example) a file named eng.traineddata must exist on the virtual filesystem. As long as it exists (through whatever method) Tesseract will run.

from tesseract.js.

The worker.loadLanguage function simply fetches a language file and writes it to the virtual filesystem. If you already have the .traineddata file as an ArrayBuffer, you can just write that to the virtual filesystem directly using the filesystem functions we provide. The following code snippet shows how filesystem operations can be used directly rather than worker.loadLanguage.

        const langRes = await fetch("./lang-data/eng.traineddata");
        const langData = new Uint8Array(await langRes.arrayBuffer());
        await worker.FS("writeFile", ["eng.traineddata", langData]);

from tesseract.js.

Thanks that would be helpful. It will take me a few days until I go back to this project again but just to confirm, simply have the file exists there is all it needs? Does it detect all *.traineddata files?

from tesseract.js.

Closing as answered.

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