We provide a library for 4-point correction and multi-point correction.
It features super high-speed transformation by applying Bresenham's algorithm, known for its fast line drawing.

Currently, it works as a dynamic link library with DIB images as input/output parameters, but it can also be used for general images.
It supports binary images, 256-level grayscale images, and 24-bit full-color images.
Original image 4-point correction
before transformation after transformation
Correspondence of the 5th point 5-point correction
before transformation after transformation