undistort remap

Undistort and remap are two image processing techniques that are commonly used in computer vision and image processing applications.

Undistort refers to the process of removing distortion from an image that occurs due to the imperfections in the camera lens or the camera itself. This distortion can cause the image to appear warped or skewed, which can make it difficult to analyze or use in applications. To undistort an image, the software must first determine the type and degree of distortion present in the image, and then apply a correction to remove it.

Remap, on the other hand, is a process that involves transforming an image from one coordinate system to another. This can be useful in many applications, such as image registration, where two images are aligned in a common coordinate system, or in image warping, where an image is transformed to match a particular shape or surface. Remapping involves calculating the pixel values in the new coordinate system based on the pixel values in the original coordinate system.

Together, undistort and remap can be used to correct distortions in an image and transform it into a new coordinate system, which can be useful for a wide range of image processing applications.