圖片 變形

axes Transformations translation euclidean affine homography Affine Transformation Shear
https://en.wikipedia.org/wiki/Digital_image_processing
https://en.wikipedia.org/wiki/Affine_transformation
笛卡爾座標

歐幾里德
仿射
單應
仿射
轉型
剪斷

Circle Rotate Spiral Wave warp
圈圈
旋渦
螺旋
水波
變形

https://docs.opencv.org/2.4/modules/imgproc/doc/geometric_transformations.html?highlight=warpaffine

Geometric Image Transformations

flag texture 3d Affine transformation Affine Transformation 拾人牙慧點滴

Polynomial Transformation Rubber Sheeting.
ＧＩＳ投影與反轉

https://tehnoblog.org/photoshop-tutorial-how-to-remove-image-distortion/

Warping Morphing algorithm

 驗證碼 captcha Warping Morphing algorithm