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Geometric Image Transformations
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| Icon | Name | Description / Applications | Modules | |
|---|---|---|---|---|
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cvGetAffineTransform | 
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Calculates the affine transform from 3 corresponding points. Prepares matrix to be used with cvWarpAffine. |
OpenCV |
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cvGetDefaultNewCameraMatrix |
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Returns the default new camera matrix. |
OpenCV |
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cvGetPerspectiveTransform |
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Calculates the perspective transform from four pairs of corresponding points. Prepares matrix to be used with cvWarpPerspective. |
OpenCV |
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cvGetRectSubPix |
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Retrieves the pixel rectangle from an image with sub-pixel accuracy. |
OpenCV |
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cvGetRotationMatrix2D |
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Calculates the affine matrix of 2D rotation. Prepares matrix to be used with cvWarpAffine. |
OpenCV |
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cvInitUndistortRectifyMap |
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Computes the undistortion and rectification transformation map. |
OpenCV |
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cvInvertAffineTransform |
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Inverts an affine transformation. Prepares matrix to be used with cvWarpAffine. |
OpenCV |
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cvRemap |
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Applies a generic geometrical transformation to the image. |
OpenCV |
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cvResize |
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Resizes an image. |
OpenCV |
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cvUndistort |
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Transforms an image to compensate for lens distortion. |
OpenCV |
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cvUndistortPoints |
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Undistorts points. |
OpenCV |
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cvWarpAffine |
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Applies an affine transformation to an image. |
OpenCV |
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cvWarpPerspective |
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Applies a perspective transformation to an image. |
OpenCV |
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cvWarpPolar |
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Remaps an image to polar or semilog-polar coordinates space. |
OpenCV |