I'm using a video element to capture images from the device camera. I want to pass this image directly to Tesseract. It is document that video elements are also a valid source but executing the code the image is not found (altough visible in the video element
HTML
...
<video id="videoFrame" onclick="takePicture()" autoplay></video>
...
JS
const exampleImage=document.getElementById("videoFrame");
const worker = Tesseract.createWorker({
logger: m => console.log(m)
});
Tesseract.setLogging(true);
work();
async function work() {
await worker.load();
await worker.loadLanguage('deu');
await worker.initialize('deu');
let result = await worker.detect(exampleImage);
....
Exception:
Error in pixReadMem: Unknown format: no pix returned
put_char @ tesseract-core.wasm.js:8
write @ tesseract-core.wasm.js:8
write @ tesseract-core.wasm.js:8
doWritev @ tesseract-core.wasm.js:8
_fd_write @ tesseract-core.wasm.js:8
___wasi_fd_write @ tesseract-core.wasm.js:8
(anonymous) @ 0086f856:1
(anonymous) @ 0086f856:1
(anonymous) @ 0086f856:1
(anonymous) @ 0086f856:1
(anonymous) @ 0086f856:1
(anonymous) @ 0086f856:1
What is a proper way to pass the Image?