The Warp block transforms an image by applying projective or affine transformation. You can transform the entire image or a region of the image by defining a rectangular region of interest (ROI). Examples Apply Horizontal Shear Transformation to Image Read an image into the MATLAB workspace. Rot...
本来想介绍projective transformation(投影变换)的,想了想还是应该先介绍一下比较简单的affine transformation(仿射变换),以便给自己一个更清晰的思路。其实仿射变换是投影变换的一种特殊形式,在图像处理中,大部分图像变换算法用仿射变换就可以得到不错的效果,并且数学意义比较明确易懂,因此仿射变换相对来说更常用一些。 首...
Afterwards, projective transformation is used to obtain more accurate registered image. To remove noise, gaussian filter is used during pre-processing and then normalization is carried out. TLBO is used to identify the optimal geometric transformation parameters by considering the mutual information (MI...
Let us also note that ruled surface is projectively flat iff H is constant. R e m a r k 2. Let us note that if all the functions a, 6, c are constant and a = a = 0 then an affine sphere f(R2) is an image of a straigth line under an action of one-parameter group of ...
The Warp block transforms an image by applying projective or affine transformation. You can transform the entire image or a region of the image by defining a rectangular region of interest (ROI). Examples Apply Horizontal Shear Transformation to Image Read an image into the MATLAB workspace. Rot...
Boolean|double|fixed point|integer|single Multidimensional Signals yes Variable-Size Signals yes More About expand all Algorithms expand all Extended Capabilities expand all C/C++ Code Generation Generate C and C++ code using Simulink® Coder™. ...
Let us also note that ruled surface is projectively flat iff H is constant. Remark 2. Let us note that if all the functions a, 6, c are constant and a = a = 0 then an affine sphere f(R2) is an image of a straigth line under an action of one-parameter group of affine transfo...
Figure 2. Projective geometry permits generating symmetric curves from ellipses by affinity with concentric circles. Each such curve may be perceived as a single thing or as a multiple of one and the same thing in a complex shape or object, as shown here. This perception is grounded in biolog...