# 常见几何变换

## 函数

 `fitgeotform2d` 根据控制点对组进行二维几何变换拟合 (自 R2022b 起) `affinetform2d` 2-D affine geometric transformation (自 R2022b 起) `affinetform3d` 3-D affine geometric transformation (自 R2022b 起) `rigidtform2d` 2-D rigid geometric transformation (自 R2022b 起) `rigidtform3d` 3-D rigid geometric transformation (自 R2022b 起) `simtform2d` 2-D similarity geometric transformation (自 R2022b 起) `simtform3d` 3-D similarity geometric transformation (自 R2022b 起) `transltform2d` 2-D translation geometric transformation (自 R2022b 起) `transltform3d` 3-D translation geometric transformation (自 R2022b 起) `projtform2d` 2-D projective geometric transformation (自 R2022b 起) `geometricTransform2d` 2-D geometric transformation object `geometricTransform3d` 3-D geometric transformation object `PiecewiseLinearTransformation2D` 2-D piecewise linear geometric transformation `PolynomialTransformation2D` 2-D polynomial geometric transformation `LocalWeightedMeanTransformation2D` 2-D local weighted mean geometric transformation
 `imwarp` 对图像应用几何变换 `transformPointsForward` Apply forward geometric transformation `transformPointsInverse` Apply inverse geometric transformation `Warper` Apply same geometric transformation to many images efficiently
 `tformarray` Apply spatial transformation to N-D array `findbounds` Find output bounds for spatial transformation `fliptform` Flip input and output roles of spatial transformation structure `makeresampler` Create resampling structure `maketform` Create N-D spatial transformation structure (`TFORM`) `tformfwd` Apply forward N-D spatial transformation `tforminv` Apply inverse N-D spatial transformation
 `imref2d` Reference 2-D image to world coordinates `imref3d` Reference 3-D image to world coordinates `affineOutputView` Create output view for warping images (自 R2019b 起)