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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 rectangular image without any distortion from this image.

In the other words I want to know how to fix perspective distortion and rotation with JavaScript?

For example I found below sample image from this article:

How to fix this type of image with javascript?

javascript node.js image-processing perspective distortion
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  this question asked Nov 2 '15 at 4:26 b24 877 6 20 36      canvas may have the tools required to manipulate an image - but wait, you flagged it node.js, so there is no browser goodness available - you'll need something pretty intelligent, it has to detect issues and fix them with no user interaction –  Jaromanda X Nov 2 '15 at 4:44      This is either wa-a-a-ay too broad for Stack Overflow, or you're asking for something already made that can do this which is off-topic for Stack Overflow. –  Tiny Giant Nov 2 '15 at 22:16      @JaromandaX , Yes I need a way that work without user interaction. –  b24 Nov 3 '15 at 12:13 1   Realize my algorithm on java . Calculate quaternion then rotate image. Any question - ask –  Ivan.s Jan 18 '16 at 21:17      I desperately need that too!!! Did you figure out how to do it? –  Diego Pamio Apr 19 '16 at 3:20

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2 Answers
2

JSFeat can do that for you. There even is an example for perspective distortion. You'll have to add/compute the source and destination points yourself.

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  this answer answered Mar 24 '16 at 12:04 arminrosu 82 11

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

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

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  this answer answered Oct 16 '16 at 15:46 Adrien Gibrat 737 8 10

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