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Asked: 2026-05-13T17:08:51+00:00

I need code for rotating an image in C++ which functions like imrotate function

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I need code for rotating an image in C++ which functions like imrotate function of matlab.
Please suggest a good link. Or if someone can provide the code for imrotate.

Or at least please explain the algorithm.

Its not a homework. I need this code for my project. And we can use any external library or code.

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1 Answer

  1. Editorial Team

    OpenCV2.0 has several computer vision and image processing tools. Specifically warpAffine (by defining the rotation matrix) will solve your problem with rotating an image.

    The 2×3 transformation matrix mentioned in the documentation is as follows:
    alt text

    where θ is the angle of rotation and tx and ty is the translation along the x and y axes respectively.

    You can get the source code here.

    Also, OpenCV2.0 has many MATLAB-esque functions like imread, etc.

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