Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

To resolve issues starting MATLAB on Mac OS X 10.10 (Yosemite) visit: http://www.mathworks.com/matlabcentral/answers/159016

Question on Image transformation

Asked by Mubeen on 29 Mar 2013

Hey guys. I have a question on changing the perspective of an image. Using this resource: http://mopage.de/2011/10/perspective/ I found a way to calculate the transformation matrix, but how do I use this to create a new image with the change in perspective?

Thanks for the help!

0 Comments

Mubeen

3 Answers

Answer by Alex Taylor on 2 Apr 2013
Accepted answer

Hi Mubeen,

If you have R2013a, you should look at the class projective2d and the function imwarp.

http://www.mathworks.com/help/images/ref/imwarp.html http://www.mathworks.com/help/images/ref/projective2dclass.html

You can use projective2d to compute forward and inverse point transformations. You can use imwarp and projective2d together to form the resampled output image that is produced by applying a projective transformation.

If you are using previous versions of the Image Procesing Toolbox, you should use the analogous workflow with maketform('projective',___) and imtransform.

We refer the transformation you are referring to as a projective transformation in the Image Processing Toolbox.

0 Comments

Alex Taylor
Answer by Sean de Wolski on 29 Mar 2013
doc imwarp
doc imtransform

0 Comments

Sean de Wolski

Contact us