How to crop images using opencv4nodejs?

Question

Node.js

Hello. Tell me who knows, I connected the opencv4nodejs library, I get an image from a file using imread, which returns a Mat object. I need to crop exactly 200px from the bottom of the image, I've searched through all the documentation and all the class methods, but I can't find how to do it.

Answer 1

Answer:

const region = img.getRegion(new cv.Rect(x, y, width, height))