在R2012a或更低版本中替换worldToIntrinsic函数 [英] The replacement of worldToIntrinsic function in R2012a or below

问题描述

MATLAB：取代 worldToIntrinsic function 在R2012a或以下

MATLAB: the replacement of worldToIntrinsic function in R2012a or below

众所周知，讨论中的功能仅在R2013a或更高版本中可用，所以

As it is known to all, the function in discussion available only in R2013a or later, so

任何可替换的内置函数或home-make方法都很好。

Any replaceable build-in functions or home-make approaches are good.

编辑：我没有imref2d类，但世界坐标问题

I don't have imref2d class, yet have world coordinate issue introduced by function imtransform

我们拥有的是下面的xdata和ydata：

What we have is the xdata and ydata from below:

[ output, xdata, ydata ] = imtransform( imgDouble{1}, tform );

任何想法？

推荐答案

调用imtransform后，您遇到的世界坐标问题是什么？ XData / YData输出和UData / VData / Size Name / Value输入在将图像网格引用到世界坐标系方面与使用imref2d相当。

What is the world coordinate issue you have after calling imtransform? The XData/YData ouputs, and UData/VData/Size Name/Value inputs are the functional equivalent to the use of imref2d in terms of referencing an image grid to a world coordinate system.

如果您感兴趣的是几何变换所暗示的正向/反向意义上的点变换，那么您可以使用函数tformfwd / tforminv。很难知道如何在不知道你想要解决的问题的情况下回答这个问题。

If what you are interested in is the point transformations in a forward/inverse sense implied by your geometric transformation, then you can use the functions tformfwd/tforminv. Its hard to know how to answer this question without knowing the problem you are trying to solve.

• Alex

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