OpenCV warpPerspective implementation

1. How do you implement warpPerspective?
2. How does OpenCV warpPerspective work?
3. What is image warping OpenCV?

How do you implement warpPerspective?

As for doing warpPerspective() manually, all you need to do is put all your image coordinates into a linearized homogeneous array and multiply by your homography, and then divide by the last coordinate to get back to Cartesian coordinates. Then, you can use remap() to do the interpolation.

How does OpenCV warpPerspective work?

We make use of a function called warpPerspective() function to fit the size of the resulting image by using the getPerspectiveTransform() function to the size of the original image or video. The warpPerspective() function returns an image or video whose size is the same as the size of the original image or video.

What is image warping OpenCV?

In this tutorial, I will show you image warping in OpenCV. Perspective view warping is to convert or perspective correction of images from angle to birds eye view transform. To convert image to birds eye view I will be using warp perspective OpenCV function.