How to use a Javascript image as input?
Closed this issue · 2 comments
PhilAndrew commented
I have a Javascript image object, how can I use this or convert this for use with this opencv4nodejs?
I mean really specifically a Javascript image https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/Image
This is what I have so far, my image I can get the buffer and then what to do?... the following does not work, just a blank image:
const width = 1000;
const height = 800;
const buf: Buffer = image.getBitmap();
const buf2: Buffer = buf.slice(4 * width * dirty.y, 4 * width * (dirty.y + dirty.height));
const myMat: Mat = new Mat(width, height, CV_8UC4);
buf.copy(myMat.getData());
imwrite('./testit.png', myMat);
PhilAndrew commented
I think I answered my own question since this works.
const width: number = 1000;
const height: number = 800;
const buf: Buffer = image.getBitmap();
const myMat: Mat = new Mat(buf, height, width, CV_8UC4);
Is this ok? or the best?
PhilAndrew commented
Works for me