How to fix image perspective distortion and rotation with JavaScript?

Question

I have some images that takes using mobile phone. Is there any JavaScript library which can straighten the photo of a paper and flatten it? For example I want to create a rectan

Answer 1

Looks like https://www.npmjs.com/package/perspective-transform is what you are looking for.

Create functions to map points from one arbitrary quadrilateral to another and vice versa with the inverse