Undefined function 'transformPointsForward' for input arguments of type 'single'.? will u explain?

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Wajahat Nawaz 2015-11-20

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评论： Walter Roberson 2015-11-23

采纳的回答： Walter Roberson

Undefined function 'transformPointsForward' for input arguments of type 'single'. if i my using tform of 3*3 matrix...

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Answer 1

Walter Roberson 2015-11-21

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You cannot call transformPointsForward and pass in a numeric matrix. The tform that you pass in must be created by a projective2d() or affine3d() class constructor call.

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Wajahat Nawaz 2015-11-23

Which function used for 3*2 matrix....as projective2d() is used for 3*3 matrix...for 3*2????????

Walter Roberson 2015-11-23

The older http://www.mathworks.com/help/images/ref/maketform.html which you would use in combination with the older http://www.mathworks.com/help/images/ref/imtransform.html

However, the 'projective' option there requires a square transform matrix (the 'affine' can accept a non-square matrix.) You may need to create a 'custom' transform if you want to use a projective 3 x 2 matrix.

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